MAX17504
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MAX17504

4.5V–60V, 3.5A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

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Industry's Only 60V, 3.5A Internal FET Synchronous Buck Converter

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $2.69
Features
  • Eliminates External Components and Reduces Total Cost
    • No Schottky-Synchronous Operation for High Efficiency and Reduced Cost
    • Internal compensation for Stable Operation at Any Output Voltage
    • All Ceramic Capacitor Solution: Ultra-Compact Layout with as Few as Eight External Components
  • Reduce Number of DC-DC Regulators to Stock
    • Wide 4.5V to 60V Input Voltage Range
    • 0.9V to 90% VIN Output Voltage
    • Delivers Up to 3.5A Over Temperature
    • 100kHz to 2.2MHz Adjustable Frequency with External Synchronization
    • MAX17504S Allows Higher Frequency Of Operation
    • Available in a 20-Pin, 5mm x 5mm TQFN Package
  • Reduce Power Dissipation
    • Peak Efficiency > 90%
    • PFM and DCM Modes for High Light-Load Efficiency
    • Shutdown Current = 2.8µA (typ)
  • Operate Reliably
    • Hiccup-Mode Current Limit and Autoretry Startup
    • Built-In Output Voltage Monitoring—(Open-Drain Active-Low RESET Pin)
    • Resistor Programmable EN/UVLO Threshold
    • Adjustable Soft-Start and Pre-Biased Power-Up
    • High Industrial -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range
Additional Details
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The MAX17504/MAX17504S high-efficiency, high-voltage, synchronously rectified step-down converter with dual integrated MOSFETs operates over a 4.5V to 60V input. It delivers up to 3.5A and 0.9V to 90% VIN output voltage. Built-in compensation across the output voltage range eliminates the need for external components. The feedback (FB) regulation accuracy over -40°C to +125°C is ±1.1%. The device is available in a compact (5mm x 5mm) TQFN lead (Pb)-free package with an exposed pad. Simulation models are available.

The device features a peak-current-mode control architecture with a MODE feature that can be used to operate the device in pulse-width modulation (PWM), pulse-frequency modulation (PFM), or discontinuous mode (DCM) control schemes. PWM operation provides constant frequency operation at all loads, and is useful in applications sensitive to switching frequency. PFM operation disables negative inductor current and additionally skips pulses at light loads for high efficiency. DCM features constant frequency operation down to lighter loads than PFM mode, by not skipping pulses, but only disabling negative inductor current at light loads. DCM operation offers efficiency performance that lies between PWM and PFM modes. The MAX17504S offers a lower minimum on-time that allows for higher switching frequencies and a smaller solution size.

A programmable soft-start feature allows users to reduce input inrush current. The device also incorporates an output enable/undervoltage lockout pin (EN/UVLO) that allows the user to turn on the part at the desired input-voltage level. An open-drain active-low RESET pin provides a delayed power-good signal to the system upon achieving successful regulation of the output voltage.

Applications

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High-Voltage Single-Board Systems
  • Industrial Power Supplies
  • Wall Transformer Regulation
Part Models 4
1ku List Price Starting From $2.69

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

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Mar 11, 2019

- 1716

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MAX17504ATP+

PRODUCTION

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PRODUCTION

Mar 12, 2018

- 1745

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MAX17504ATP+

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MAX17504SATP+

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Jun 20, 2016

- 1612

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MAX17504ATP+

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Apr 20, 2015

- 1483B_AMENDED

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Filter by Model

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Reset Filters

Part Models

Product Lifecycle

PCN

Mar 11, 2019

- 1716

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WAFER FAB

MAX17504ATP+

PRODUCTION

MAX17504ATP+T

PRODUCTION

MAX17504SATP+

PRODUCTION

Mar 12, 2018

- 1745

arrow down

ASSEMBLY

MAX17504ATP+

PRODUCTION

MAX17504ATP+T

PRODUCTION

MAX17504SATP+

PRODUCTION

Jun 20, 2016

- 1612

arrow down

ASSEMBLY

MAX17504ATP+

PRODUCTION

MAX17504ATP+T

PRODUCTION

Apr 20, 2015

- 1483B_AMENDED

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WAFER FAB

MAX17504ATP+

PRODUCTION

MAX17504ATP+T

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 3

MAX17504EVKITA

Evaluation Kit for the MAX17504 in 3.3V Output-Voltage Application

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MAX17504EVKITA

Evaluation Kit for the MAX17504 in 3.3V Output-Voltage Application

Evaluation Kit for the MAX17504 in 3.3V Output-Voltage Application

Features and Benefits

  • Operates from a 5V to 60V Input Supply
  • 3.3V Output Voltage
  • Up to 3.5A Output Current
  • 450kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • MODE Pin to Select Among PWM, PFM, or DCM Modes
  • Open-Drain Active-Low RESET Output
  • External Frequency Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX17504 3.3V output evaluation kit (EV kit) provides a proven design to evaluate the MAX17504 high-voltage, high-efficiency, synchronous step-down DC-DC converter. The EV kit is preset for 3.3V output at load currents up to 3.5A and features a 450kHz switching frequency for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, open-drain active-low RESET signal, and external frequency synchronization.

Applications

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High-Voltage Single-Board Systems
  • Industrial Power Supplies
  • Wall Transformer Regulation

MAX17504EVKITB

Evaluation Kit for the MAX17504 in 5V Output-Voltage Application

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MAX17504EVKITB

Evaluation Kit for the MAX17504 in 5V Output-Voltage Application

Evaluation Kit for the MAX17504 in 5V Output-Voltage Application

Features and Benefits

  • Operates from a 7.5V to 60V Input Supply
  • 5V Output Voltage
  • Up to 3.5A Output Current
  • 500kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • MODE Pin to Select Among PWM, PFM, or DCM Modes
  • Open-Drain Active-Low RESET Output
  • External Frequency Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Detail

The MAX17504 5V output evaluation kit (EV kit) provides a proven design to evaluate the MAX17504 high-voltage, high-efficiency, synchronous step-down DC-DC converter. The EV kit is preset for 5V output at load currents up to 3.5A and features a 500kHz switching frequency for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, open-drain active-low RESET signal, and external frequency synchronization.

Applications

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High-Voltage Single-Board Systems
  • Industrial Power Supplies
  • Wall Transformer Regulation

MAX17504EVKITBE

CISPR-22 Compliant Evaluation Kit for the MAX17504 in 5V Output-Voltage Application

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MAX17504EVKITBE

CISPR-22 Compliant Evaluation Kit for the MAX17504 in 5V Output-Voltage Application

CISPR-22 Compliant Evaluation Kit for the MAX17504 in 5V Output-Voltage Application

Features and Benefits

  • Operates from a 7.5V to 60V Input Supply
  • Programmed 5V Output Voltage, 3.5A Load Current
  • 500kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • MODE Pin to Select Among PWM, PFM, or DCM Modes
  • Open-Drain Active-Low RESET Output
  • External Clock Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Complies with CISPR22(EN55022) Class B Conducted and Radiated Emissions
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Product Detail

The MAX17504EVKITBE# evaluation kit (EV kit) provides a proven design to evaluate the MAX17504 high-voltage, high-efficiency, synchronous step-down DC-DC converter. The EV kit is preset for 5V output at load currents up to 3.5A and features a 500kHz switching frequency for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, open-drain active-low RESET signal, and external clock synchronization. The EV kit also provides a good layout example, which is optimized for conducted, radiated EMI, and thermal performance. For more details about the IC benefits and features, refer to the MAX17504 data sheet.

Applications

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General-Purpose Point-of-Load
  • High-Voltage Single-Board Systems
  • Industrial Power Supplies
  • Wall Transformer Regulation
Tools & Simulations

Tools & Simulations 3

Reference Designs

Reference Designs 5

MAXREFDES1019

Multiple-Output, DC-DC Converter using Buck Regulators

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MAXREFDES1019

Multiple-Output, DC-DC Converter using Buck Regulators

Multiple-Output, DC-DC Converter using Buck Regulators

Features and Benefits

MAX17541G

  • Reduced Power Dissipation
  • Peak Efficiency > 90%
  • Shutdown Current = 0.9μA (typ)
  • Operates Reliably in Adverse Industrial Environments
  • Hiccup-Mode Current Limit, Sink Current Limit, and Autoretry Startup
  • Built-In Output-Voltage Monitoring (Active-Low RESET Pin)
  • Programmable EN/UVLO Threshold
  • Adjustable Soft-Start and Prebiased Power-Up
  • -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range

MAX17504

  • 100kHz to 2.2MHz Adjustable Switching Frequency with External Synchronization
  • Peak Efficiency > 90%
  • PFM and DCM Modes Enable Enhanced Light-Load Efficiency
  • 2.8μA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
  • Hiccup Mode Overload Protection
  • Adjustable Soft-Start and Prebiased Power-Up
  • Built-In Output-Voltage Monitoring with RESET
  • Programmable EN/UVLO Threshold
  • -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range
View Detailed Reference Design external link

Design & Integration Tools

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ZIP

2.9 M

MAXREFDES1048

Two-Layer Board, 3.3V/3A, Wide-Input, Synchronous, Step-Down DC-DC Converter Using the MAX17504

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MAXREFDES1048

Two-Layer Board, 3.3V/3A, Wide-Input, Synchronous, Step-Down DC-DC Converter Using the MAX17504

Two-Layer Board, 3.3V/3A, Wide-Input, Synchronous, Step-Down DC-DC Converter Using the MAX17504

Features and Benefits

  • Eliminates External Components and Reduces Total Cost
  • Reduces Number of DC-DC Regulators to Stock
  • Reduces Power Dissipation
  • Operates Reliably
View Detailed Reference Design external link

Part Used 1

Design & Integration Tools

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ZIP

2.28 M

maxrefdes37fig00

IO-Link Quad Servo Driver

maxrefdes1050 image 1

15V/1.5A Buck-Boost DC-DC Converter Using the Step-Down Controller MAX17504

maxrefdes1049 image 1

Low EMI, 5V/3.5A, Synchronous Buck DC-DC Converter Using the MAX17504

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