MAX17690
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MAX17690

60V, No-Opto Isolated Flyback Controller

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Compact, Cost-Effective, and Easy-to-Implement Isolated DC-DC Controller

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $1.77
Features
  • 4.5V to 60V Input Voltage Range
  • No Optocoupler or Third Winding Required to Derive Feedback Signal Across Isolation Boundary
  • 2A/4A Peak Source/Sink Gate Drive Currents
  • 50kHz to 250kHz Programmable Switching Frequency
  • Input EN/UVLO Feature
  • Input Overvoltage Protection
  • Programmable Soft-Start
  • Hiccup-Mode Short-Circuit Protection
  • Thermal Shutdown Protection
  • -40°C to 125°C Operating Temperature Range
  • Space-Saving, 16-Pin 3 x 3 TQFN Package
Additional Details
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The MAX17690 is a peak current mode, fixed-frequency switching controller specifically designed for the isolated flyback topology operating in Discontinuous Conduction Mode (DCM). The device senses the isolated output voltage directly from the primary-side flyback waveform during the off-time of the primary switch. No auxiliary winding or optocoupler is required for output voltage regulation.

The MAX17690 is designed to operate over a wide supply range from 4.5V to 60V. The switching frequency is programmable from 50kHz to 250kHz. A EN/UVLO pin allows the user to turn on/off the power supply precisely at the desired input voltage. The MAX17690 provides an input overvoltage protection through the OVI pin. The 7V internal LDO output of the MAX17690 makes it suitable for switching both logic-level and standard MOSFETs used in flyback converters. With 2A/4A source/sink currents, the MAX17690 is ideal for driving low RDS(ON) power MOSFETs with fast gate transition times. The MAX17690 provides an adjustable soft-start feature to limit the inrush current during startup.

The MAX17690 provides temperature compensation for the output diode forward voltage drop. The MAX17690 has robust hiccup-protection and thermal protection schemes, and is available in a space-saving 16-pin 3mm x 3mm TQFN package with a temperature range from -40°C to 125°C.

Applications
  • Industrial and Telecom Applications
  • Isolated Flyback Converters
  • PLC I/O Modules
  • Wide-Range DC-Input Isolated Power Supplies
Part Models 4
1ku List Price Starting From $1.77

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Product Lifecycle

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Oct 30, 2018

- 1862

DESIGN

MAX17690ATE+

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PRODUCTION

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Part Models

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Oct 30, 2018

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DESIGN

MAX17690ATE+

PRODUCTION

MAX17690ATE+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 7

MAX17690EVKITE

Evaluation Kit for MAX17690

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MAX17690EVKITE

Evaluation Kit for MAX17690

Evaluation Kit for MAX17690

Features and Benefits

  • 18V to 36V Input Range
  • Isolated Output: 3.3V/5A DC
  • Compact Design with High Frequency (200kHz) Switching
  • No Optocoupler/Third Winding Required to Derive Feedback Signal
  • 84.7% Peak Efficiency
  • Galvanic Isolation up to 1500VRMS
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX17690E evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the operation of an isolated 16.5W no-opto flyback DC-DC converter with secondary-side synchronous rectification. This circuit is implemented using the MAX17690, a no-opto, flyback controller in a 16-pin TQFN package with an exposed pad. The synchronous rectification on the secondary side is enabled by replacing the secondary diode with a MOSFET to achieve 84.7% efficiency. The circuit uses the MAX17606, a secondary-side synchronous rectifier driver in a 6-pin SOT23 package for driving the secondary-side MOSFET.

The EV kit output is con gured for an isolated +3.3V and provides up to 5A of output current. The EV kit is programmed to operate at a 200kHz switching frequency. The transformer provides the galvanic isolation between input and output, up to 1500VRMS. The EV kit regulates the output voltage within ±5% over the line, load, and temperature without using the auxiliary winding/optocoupler for output voltage feedback.

Applications

  • Industrial and Telecom Applications
  • Isolated Flyback Converters
  • PLC I/O Modules
  • Wide-Range DC-Input Isolated Power Supplies

MAX17690EVKITB

Evaluation Kit for the MAX17690

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MAX17690EVKITB

Evaluation Kit for the MAX17690

Evaluation Kit for the MAX17690

Features and Benefits

  • 18V to 36V Input Range
  • Isolated Output: 5V/1A DC
  • Compact Design with High-Frequency (180kHz) Switching
  • Minimum Number of External Components
  • 85.8% Peak Efficiency
  • Low-Cost Flyback Design
  • Galvanic Isolation up to 1875VAC
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX17690B evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the operation of an isolated 5W no-opto flyback DC-DC converter. This circuit uses a MAX17690 in a 16-pin TQFN package with an exposed pad. The data sheet must be read in conjunction with this quick start guide for demo circuit.

The EV kit output is configured for an isolated +5V and provides up to 1A of output current. The device switches at a 200kHz switching frequency. The transformer provides the galvanic isolation between input and output, up to 1875VAC.

Applications

  • Industrial and Telecom Applications
  • Isolated Flyback Converters
  • PLC I/O Modules
  • Wide-Range DC-Input Isolated Power Supplies

MAX17690EVKITG

Evaluation Kit for the MAX17690

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MAX17690EVKITG

Evaluation Kit for the MAX17690

Evaluation Kit for the MAX17690

Features and Benefits

  • 4.5V to 5.5V Input Range
  • Isolated Output: 5V/1A DC
  • Compact Design with High-Frequency (180kHz) Switching
  • Minimum Number of External Components
  • 86.4% Peak Efficiency
  • Low-Cost Flyback Design
  • Galvanic Isolation up to 1500VAC
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX17690G evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the operation of an isolated 5W no-opto flyback DC-DC converter. This circuit uses a MAX17690 in a 16-pin TQFN package with an exposed pad. The data sheet must be read in conjunction with this quick start guide for demo circuit.

The EV kit output is configured for an isolated +5V and provides up to 1A of output current. The device switches at a 180kHz switching frequency. The transformer provides the galvanic isolation between input and output, up to 1500VAC.

Applications

  • Industrial and Telecom Applications
  • Isolated Flyback Converters
  • PLC I/O Modules
  • Wide-Range DC-Input Isolated Power Supplies

MAX17690EVKITD

Evaluation Kit for the MAX17690 No-Opto Flyback with Secondary-Side Synchronous Rectification

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MAX17690EVKITD

Evaluation Kit for the MAX17690 No-Opto Flyback with Secondary-Side Synchronous Rectification

Evaluation Kit for the MAX17690 No-Opto Flyback with Secondary-Side Synchronous Rectification

Features and Benefits

  • 18V to 36V Input Range
  • Isolated Output: 5V/3A DC
  • Compact Design with High Frequency (200kHz) Switching
  • No Optocoupler/Third Winding Required to Derive Feedback Signal
  • 89.6% Peak Efficiency
  • Galvanic Isolation up to 1500VRMS
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX17690D evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the operation of an isolated 15W no-opto flyback DC-DC converter with secondary-side synchronous rectification. This circuit is implemented using the MAX17690, a no-opto, flyback controller in a 16-pin TQFN package with an exposed pad. The synchronous rectification on the secondaryside is enabled by replacing the secondary diode with a MOSFET to achieve 89.6% efficiency. The circuit uses the MAX17606, a secondary-side synchronous rectifier driver in a 6-pin SOT23 package for driving the secondary-side MOSFET.

The EV kit output is configured for an isolated +5V and provides up to 3A of output current. The EV kit is programmed to operate at a 200kHz switching frequency. The transformer provides the galvanic isolation between input and output, up to 1500VRMS. The EV kit regulates the output voltage within ±5% over the line, load, and temperature without using the auxiliary winding/optocoupler for output voltage feedback.

Applications

  • Industrial and Telecom Applications
  • Isolated Flyback Converters
  • PLC I/O Modules
  • Wide-Range DC-Input Isolated Power Supplies

MAX17690EVKITC

Evaluation Kit for the MAX17690 In Dual-Output Configuration

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MAX17690EVKITC

Evaluation Kit for the MAX17690 In Dual-Output Configuration

Evaluation Kit for the MAX17690 In Dual-Output Configuration

Features and Benefits

  • 18V to 36V Input Range
  • Isolated Output: ±15V/200mA On Each Output
  • Compact Design with High Frequency (100kHz) Switching
  • Minimum Number of External Components
  • 90.5% Peak Efficiency
  • Low-Cost Flyback Design
  • Galvanic Isolation up to 1500VRMS
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX17690EVKITC is a fully assembled and tested circuit board that demonstrates the working of an isolated 6W no-opto flyback DC-DC converter. This circuit uses a MAX17690 in a 16-pin TQFN package with an exposed pad. The data sheet must be read in conjunction with this quick start guide for demo circuit.

The EV kit output is configured for an isolated ±5V and provides up to 200mA of output current on each output. The MAX17690 switches at a 100kHz switching frequency. The transformer provides the galvanic isolation between input and output, up to 1500VRMS.

Applications

  • Industrial and Telecom Applications
  • Isolated Flyback Converters
  • PLC I/O Modules
  • Wide-Range DC-Input Isolated Power Supplies

MAX17690EVKITJ

Evaluation Kit for the MAX17690 in 12V Output-Voltage Application

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MAX17690EVKITJ

Evaluation Kit for the MAX17690 in 12V Output-Voltage Application

Evaluation Kit for the MAX17690 in 12V Output-Voltage Application

Features and Benefits

  • 40V to 80V Input Range, Suitable for PoE Applications
  • Isolated Output: 12V/2.1A DC
  • Compact Design with High Frequency (100kHz) Switching
  • 89.9% Full-Load Efficiency
  • Minimum Number of External Components
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX17690EVKITJ# evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the operation of an isolated 25W No-Opto Flyback DC-DC converter. This circuit uses MAX17690 in a 16-pin TQFN package with an exposed pad. The IC data sheet provides a complete description of the part and should be read in conjunction with this EV kit data sheet prior to operating the EV kit.

The MAX17690EVKITJ# EV kit output is configured for an isolated +12V and provides up to 2.1A of output current over a 40V to 80V input range, suitable for power-overethernet (PoE) applications. The EV kit regulates the output voltage within ±8% over line, load, and temperature without using the auxiliary winding/optocoupler for outputvoltage feedback.

Applications

  • Industrial and Telecom Applications
  • Isolated Flyback Converters
  • PLC I/O Modules
  • Wide-Range DC-Input Isolated Power Supplies

MAX17690EVKITA

Evaluation Kit for the MAX17690

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MAX17690EVKITA

Evaluation Kit for the MAX17690

Evaluation Kit for the MAX17690

Features and Benefits

  • 18V to 36V Input Range
  • Isolated Output: 5V/1A DC
  • Compact Design with High Frequency (150kHz) Switching
  • No Optocoupler/Third Winding Required to Derive Feedback Signal
  • 90% Peak Efficiency
  • Galvanic Isolation up to 1875VRMS
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Minimum Load for ±5% Regulation: 1% of Full-Load

Product Detail

The MAX17690A evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the operation of an isolated 5W no-opto flyback DC-DC converter with secondary-side synchronous rectification. This circuit is implemented using the MAX17690, a no-opto, flyback controller in a 16-pin TQFN package with an exposed pad. The synchronous rectification on the secondary side is enabled by replacing the secondary diode with a MOSFET to achieve 89.5% efficiency. The circuit uses the MAX17606, a secondary-side synchronous rectifier driver in a 6-pin SOT23 package for driving the secondary-side MOSFET.

The EV kit output is configured for an isolated +5V and provides up to 1A of output current. The EV kit is programmed to operate at a 150kHz switching frequency. The transformer provides the galvanic isolation between input and output, up to 1875VRMS. The EV kit regulates the output voltage within ±5% over the line, load, and temperature without using the auxiliary winding/optocoupler for output voltage feedback.

Applications

  • Industrial and Telecom Applications
  • Isolated Flyback Converters
  • PLC I/O Modules
  • Wide-Range DC-Input Isolated Power Supplies
Tools & Simulations

Tools & Simulations 2

Reference Designs

Reference Designs 41

MAXREFDES1175

PoE Powered Device and 5V/1.4A No-Opto Flyback DC-DC Converter Using the MAX17690 and MAX5969B

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MAXREFDES1175

PoE Powered Device and 5V/1.4A No-Opto Flyback DC-DC Converter Using the MAX17690 and MAX5969B

PoE Powered Device and 5V/1.4A No-Opto Flyback DC-DC Converter Using the MAX17690 and MAX5969B

Features and Benefits

  • IEEE 802.3af/at Compliance
  • Thermally Enhanced, 3mm × 3mm, 10-Pin TDFN Package (MAX5969B)
  • 30V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm × 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

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2.75 M

MAXREFDES1100

Miniature, 12V/500mA, No-Opto Flyback DC-DC Converter with 90% Efficiency Using MAX17690

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MAXREFDES1100

Miniature, 12V/500mA, No-Opto Flyback DC-DC Converter with 90% Efficiency Using MAX17690

Miniature, 12V/500mA, No-Opto Flyback DC-DC Converter with 90% Efficiency Using MAX17690

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm × 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

Part Used 1

Design & Integration Tools

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2.71 M

MAXREFDES1095

Miniature, 12V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 92.8% Efficiency Using MAX17690 and MAX17606

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MAXREFDES1095

Miniature, 12V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 92.8% Efficiency Using MAX17690 and MAX17606

Miniature, 12V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 92.8% Efficiency Using MAX17690 and MAX17606

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm × 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

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2.7 M

maxrefdes1089

Miniature, 12V/250mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.7% Efficiency Using MAX17690 and MAX17606

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MAXREFDES1089

Miniature, 12V/250mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.7% Efficiency Using MAX17690 and MAX17606

Miniature, 12V/250mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.7% Efficiency Using MAX17690 and MAX17606

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range

View Detailed Reference Design external link

Design & Integration Tools

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2.72 M

maxrefdes1093

Miniature, 5V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 92% Efficiency Using MAX17690 and MAX17606

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MAXREFDES1093

Miniature, 5V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 92% Efficiency Using MAX17690 and MAX17606

Miniature, 5V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 92% Efficiency Using MAX17690 and MAX17606

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

Design & Integration Tools

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2.81 M

maxrefdes1094

Miniature, 12V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.9% Efficiency Using MAX17690 and MAX17606

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MAXREFDES1094

Miniature, 12V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.9% Efficiency Using MAX17690 and MAX17606

Miniature, 12V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.9% Efficiency Using MAX17690 and MAX17606

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

Design & Integration Tools

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2.68 M

MAXREFDES1091

Miniature, 12V/250mA, No-Opto Flyback DC-DC Converter with 91% Efficiency Reference Design Using MAX17690

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MAXREFDES1091

Miniature, 12V/250mA, No-Opto Flyback DC-DC Converter with 91% Efficiency Reference Design Using MAX17690

Miniature, 12V/250mA, No-Opto Flyback DC-DC Converter with 91% Efficiency Reference Design Using MAX17690

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

Part Used 1

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3.33 M

MAXREFDES138

No-Opto Isolated, PoE, 48V to 12V, 12W Flyback Power Supply

maxrefdes1092

Miniature, 5V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 91.5% Efficiency

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MAXREFDES1092

Miniature, 5V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 91.5% Efficiency

Miniature, 5V/1A, Synchronous, No-Opto Flyback DC-DC Converter with 91.5% Efficiency

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

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2.88 M

maxrefdes1090

Miniature, 12V/250mA, No-Opto Flyback DC-DC Converter with 91.3% Efficiency Using the MAX17690

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MAXREFDES1090

Miniature, 12V/250mA, No-Opto Flyback DC-DC Converter with 91.3% Efficiency Using the MAX17690

Miniature, 12V/250mA, No-Opto Flyback DC-DC Converter with 91.3% Efficiency Using the MAX17690

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

Part Used 1

Design & Integration Tools

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2.7 M

MAXREFDES1012

Miniature, 5.3V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency Using MAX17690 and MAX17606

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MAXREFDES1012

Miniature, 5.3V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency Using MAX17690 and MAX17606

Miniature, 5.3V/2A, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency Using MAX17690 and MAX17606

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

Part Used 1

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2.72 M

maxrefdes120

Isolated 24V to 5V–12.5W No-Opto Flyback Power Supply

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MAXREFDES120

Isolated 24V to 5V–12.5W No-Opto Flyback Power Supply

Isolated 24V to 5V–12.5W No-Opto Flyback Power Supply

Features and Benefits

Features

  • Functional insulation
  • Compact and flexible
  • Minimal external components
  • Robust operation in adverse industrial environments
  • 5V output at 2.5A
  • ±5% output accuracy

Competitive Advantages

  • Rapid prototyping
  • Accelerated design time
  • Cool system operation
View Detailed Reference Design external link

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19.56 M

MAXREFDES1010

24V/300mA, No-Opto Isolated Flyback DC-DC Converter Reference Design

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MAXREFDES1010

24V/300mA, No-Opto Isolated Flyback DC-DC Converter Reference Design

24V/300mA, No-Opto Isolated Flyback DC-DC Converter Reference Design

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm × 3mm TQFN Package
  • -40℃ to +125℃ Operating Temperature Range
View Detailed Reference Design external link

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2.56 M

maxrefdes119

Isolated 24V to 5V, 9W No-Opto Flyback Power Supply

maxrefdes1086

Miniature, 5V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency

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MAXREFDES1086

Miniature, 5V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency

Miniature, 5V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

Design & Integration Tools

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2.72 M

maxrefdes1087

Miniature, 5V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency

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MAXREFDES1087

Miniature, 5V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency

Miniature, 5V/500mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.4% Efficiency

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
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2.71 M

maxrefdes1088

Miniature, 12V/250mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.9% Efficiency Using MAX17690 and MAX17606

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MAXREFDES1088

Miniature, 12V/250mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.9% Efficiency Using MAX17690 and MAX17606

Miniature, 12V/250mA, Synchronous, No-Opto Flyback DC-DC Converter with 91.9% Efficiency Using MAX17690 and MAX17606

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
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2.72 M

maxrefdes128fig02

No-Opto Isolated, PoE, 48V to 5V, 12.5W Flyback Power Supply

MAXREFDES1014

48V/80mA, No-Opto Isolated Flyback DC-DC Converter Using MAX17690

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MAXREFDES1014

48V/80mA, No-Opto Isolated Flyback DC-DC Converter Using MAX17690

48V/80mA, No-Opto Isolated Flyback DC-DC Converter Using MAX17690

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
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2.53 M

MAXREFDES1040

59.4W, No-Opto Flyback DC-DC Converter Using MAX17690

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MAXREFDES1040

59.4W, No-Opto Flyback DC-DC Converter Using MAX17690

59.4W, No-Opto Flyback DC-DC Converter Using MAX17690

Features and Benefits

  • No Optocoupler or Third Winding Required
  • 2A/4A Peak Source/Sink Gate Drive Currents
  • 50kHz to 250kHz Programmable Switching Frequency
  • Input EN/UVLO Feature
  • Input Overvoltage Protection
  • Programmable Soft-Start
  • Hiccup-Mode Short-Circuit Protection
  • Thermal Shutdown Protection
  • -40°C to +125°C Operating Temperature Range
  • Space-Saving, 3mm x 3mm, 16-Pin TQFN Package
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2.88 M

MAXREFDES1022

5V/2A, Synchronous No-Opto Isolated Flyback DC-DC Converter

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MAXREFDES1022

5V/2A, Synchronous No-Opto Isolated Flyback DC-DC Converter

5V/2A, Synchronous No-Opto Isolated Flyback DC-DC Converter

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
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2.72 M

MAXREFDES1149

12V/1A, Synchronous, No-Opto Isolated PoE DC-DC Converter Using MAX17690, MAX17606, MAX5969A

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MAXREFDES1149

12V/1A, Synchronous, No-Opto Isolated PoE DC-DC Converter Using MAX17690, MAX17606, MAX5969A

12V/1A, Synchronous, No-Opto Isolated PoE DC-DC Converter Using MAX17690, MAX17606, MAX5969A

Features and Benefits

  • Features
  • IEEE® 802.3af/at Compliance
  • 2-Event Classification
  • No Schottky-Synchronous Operation for High Efficiency and Reduced Cost
  • Ultra-Compact Layout
  • Peak Efficiency > 88%
  • 3mm × 3mm, 16-Pin TQFN (MAX17690), 6-Lead SOT23 (MAX17606), and Thermally Enhanced, 3mm × 3mm, 10-Pin TDFN (MAX5969A) Packages
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3.54 M

maxrefdes124fig01

Isolated 12V to 5.5V 22W No-Opto Flyback Power Supply

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MAXREFDES124

Isolated 12V to 5.5V 22W No-Opto Flyback Power Supply

Isolated 12V to 5.5V 22W No-Opto Flyback Power Supply

Features and Benefits

Features

  • Functional insulation
  • Compact and flexible
  • Minimal external components
  • 5kV of isolation for medical and other high-isolation applications
  • ±5% output accuracy

Competitive Advantages

  • Rapid prototyping
  • Accelerated design time
  • Cool system operation
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15.85 M

MAXREFDES1101

Miniature, 12V/500mA, No-Opto Flyback DC-DC Converter with 90% Efficiency

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MAXREFDES1101

Miniature, 12V/500mA, No-Opto Flyback DC-DC Converter with 90% Efficiency

Miniature, 12V/500mA, No-Opto Flyback DC-DC Converter with 90% Efficiency

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

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628.53 K

maxrefdes1177 figure 1

PoE Powered Device and 12V/600mA No-Opto Flyback DC-DC Converter Using the MAX17690 and MAX5969B

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MAXREFDES1177

PoE Powered Device and 12V/600mA No-Opto Flyback DC-DC Converter Using the MAX17690 and MAX5969B

PoE Powered Device and 12V/600mA No-Opto Flyback DC-DC Converter Using the MAX17690 and MAX5969B

Features and Benefits

  • IEEE 802.3af/at Compliance
  • Thermally Enhanced, 3mm × 3mm, 10-Pin TDFN Package (MAX5969B)
  • 30V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm × 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
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9.48 M

maxrefdes1148 figure 1

MAXREFDES1148: 5V/2.5A, Synchronous, No-Opto Isolated PoE DC-DC Converter Using MAX17690, MAX17606, MAX5969A

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MAXREFDES1148

MAXREFDES1148: 5V/2.5A, Synchronous, No-Opto Isolated PoE DC-DC Converter Using MAX17690, MAX17606, MAX5969A

MAXREFDES1148: 5V/2.5A, Synchronous, No-Opto Isolated PoE DC-DC Converter Using MAX17690, MAX17606, MAX5969A

Features and Benefits

  • IEEE® 802.3af/at Compliance
  • 2-Event Classification
  • No Schottky-Synchronous Operation for High Efficiency and Reduced Cost
  • Ultra-Compact Layout
  • Peak Efficiency > 88%
  • 3mm × 3mm, 16-Pin TQFN (MAX17690), 6-Lead SOT23 (MAX17606), and Thermally Enhanced, 3mm × 3mm, 10-Pin TDFN (MAX5969A) Packages
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9.79 M

MAXREFDES1002

6W, Synchronous No-Opto Flyback DC-DC Converter

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MAXREFDES1002

6W, Synchronous No-Opto Flyback DC-DC Converter

6W, Synchronous No-Opto Flyback DC-DC Converter

Features and Benefits

  • No Optocoupler or Third Winding Required
  • 2A/4A Peak Source/Sink Gate Drive Currents
  • 50kHz to 250kHz Programmable Switching Frequency
  • Input EN/UVLO Feature
  • Input Overvoltage Protection
  • Programmable Soft-Start
  • Hiccup-Mode Short-Circuit Protection
  • Thermal Shutdown Protection
  • -40℃ to +125℃ Operating Temperature Range
  • Space-Saving, 3mm x 3mm, 16-Pin TQFN Package
View Detailed Reference Design external link
Figure 1. MAXREFDES1194 hardware.

Five-Output, No-Opto Flyback DC-DC Converter Using the MAX17690

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MAXREFDES1194

Five-Output, No-Opto Flyback DC-DC Converter Using the MAX17690

Five-Output, No-Opto Flyback DC-DC Converter Using the MAX17690

Features and Benefits

Features

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
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2.42 M

Figure 1. MAXREFDES1252 hardware.

Miniature, 14.5V/1.2A, No-Opto Flyback DC-DC Converter with 91.7% Efficiency Using MAX17690

Figure 1. MAXREFDES1102 hardware.

Miniature, 24V/250mA, No-Opto Flyback DC-DC Converter with 92% Efficiency Using the MAX17690

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MAXREFDES1102

Miniature, 24V/250mA, No-Opto Flyback DC-DC Converter with 92% Efficiency Using the MAX17690

Miniature, 24V/250mA, No-Opto Flyback DC-DC Converter with 92% Efficiency Using the MAX17690

Features and Benefits

Key Features

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
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2.9 M

MAXREFDES1173

MAXREFDES1173: Miniature, 12V/1A, No-Opto Flyback DC-DC Converter with 91.3% Efficiency Using the MAX17690

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MAXREFDES1173

MAXREFDES1173: Miniature, 12V/1A, No-Opto Flyback DC-DC Converter with 91.3% Efficiency Using the MAX17690

MAXREFDES1173: Miniature, 12V/1A, No-Opto Flyback DC-DC Converter with 91.3% Efficiency Using the MAX17690

Features and Benefits

  • 4.5V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm × 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
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2.87 M

maxrefdes1176

PoE Powered Device and Synchronous 5V/1.4A No-Opto Flyback DC-DC Converter Using the MAX17690, MAX17606, and MAX5969B

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MAXREFDES1176

PoE Powered Device and Synchronous 5V/1.4A No-Opto Flyback DC-DC Converter Using the MAX17690, MAX17606, and MAX5969B

PoE Powered Device and Synchronous 5V/1.4A No-Opto Flyback DC-DC Converter Using the MAX17690, MAX17606, and MAX5969B

Features and Benefits

  • IEEE® 802.3af/at Compliance
  • Thermally Enhanced, 3mm × 3mm, 10-Pin TDFN Package (MAX5969B)
  • 30V to 60V Input Voltage Range
  • Programmable Switching Frequency from 50kHz to 250kHz
  • Programmable Input Enable/UVLO Feature
  • Programmable Input Overvoltage Protection
  • Adjustable Soft-Start
  • 2A/4A Peak Source/Sink Gate Drive Capability
  • Hiccup Mode Short-Circuit Protection
  • Fast Cycle-by-Cycle Peak Current Limit
  • Thermal Shutdown Protection
  • Space-Saving, 16-Pin, 3mm x 3mm TQFN Package
  • -40°C to +125°C Operating Temperature Range
View Detailed Reference Design external link

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