MAX17760

PRODUCTION

4.5V to 76V, 300mA, High-Efficiency, Synchronous Step-Down DC-DC Converter

76V Synchronous Buck Converter with Internal FETs Enables High Efficiency and Low Temperature Rise

Data Sheet (Rev. 2)
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Part Details

  • Reduces External Components and Total Cost
    • No Schottky—Synchronous Operation
    • Internal Compensation Components
    • All-Ceramic Capacitors, Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
    • Wide 4.5V to 76V Input
    • Adjustable Output Range from 0.8V up to 88% of VIN
    • Up to 300mA Output Current
    • 200kHz, 300kHz, 400kHz, and 600kHz Programmable Switching Frequency with External Clock Synchronization
  • Reduces Power Dissipation
    • 93% Peak Efficiency
    • PFM Mode Enables Enhanced Light-Load Efficiency
    • EXTVCC Bootstrap Input for Improved Efficiency
    • 5µA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Built-in Hiccup Mode Overload Protection
    • Programmable Soft-Start and Prebiased Power-up
    • Built-in Output-Voltage Monitoring with active-low RESET
    • Programmable EN/UVLO Threshold
    • Overtemperature Protection
    • CISPR 22 Class B Compliant
    • Wide -40°C to +125°C Ambient Operating Temperature Range/ -40°C to +150°C Junction Temperature Range
MAX17760
4.5V to 76V, 300mA, High-Efficiency, Synchronous Step-Down DC-DC Converter
MAX17760: Simplified Application Circuit
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Documentation

Data Sheet 1

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Software Resources

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Tools & Simulations

EE-Sim Power® Tools 1

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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Evaluation Kits

MAX17760BEVKIT

Evaluation Kit for the MAX17760 in 12V Output-Voltage Application

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Features and Benefits

  • Operates from a 16V to 76V Input Supply
  • 12V Output Voltage
  • Up to 300mA Output Current
  • 400kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • MODE Pin to Select between PWM or PFM Modes
  • Bootstrap Bias Input for Improved Efficiency
  • Open-Drain Active-Low RESET Output
  • External Clock Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17760BEVKIT# evaluation kit (EV kit) provides a proven design to evaluate the MAX17760 high-efficiency, high-voltage, synchronous step-down DC-DC converter in a TDFN package. The EV kit generates 12V at load currents up to 300mA from a 16V to 76V input supply. The EV kit features a 400kHz switching frequency for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, adjustable switching frequency, open-drain active-low RESET signal, and external clock synchronization. The EV kit also provides a good layout example, which is optimized for thermal performance. For more details about the IC Benefits and Features, refer to the MAX17760 IC data sheet.

Applications

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

MAX17760AEVKIT

Evaluation Kit for the MAX17760 in 5V Output-Voltage Application

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Features and Benefits

  • Operates from a 7V to 76V Input Supply
  • 5V Output Voltage
  • Up to 300mA Output Current
  • 400kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • MODE Pin to Select between PWM or PFM Modes
  • Bootstrap Bias Input for Improved Efficiency
  • 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

Product Details

The MAX17760AEVKIT# evaluation kit (EV kit) provides a proven design to evaluate the MAX17760 high-efficiency, high-voltage, synchronous step-down DC-DC converter in a TDFN package. The EV kit generates 5V at load currents up to 300mA from a 7V to 76V input supply. The EV kit features a 400kHz switching frequency for optimum efficiency and component size. The EV kit features adjustable input undervoltage lockout, adjustable soft-start, adjustable switching frequency, 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 MAX17760 IC data sheet.

Applications

  • Base Station Power Supplies
  • Distributed Supply Regulation
  • General Purpose Point-of-Load
  • High Voltage Single-Board Systems
  • Industrial Control Power Supplies
  • Wall Transformer Regulation
MAX17760BEVKIT
Evaluation Kit for the MAX17760 in 12V Output-Voltage Application
MAX17760AEVKIT
Evaluation Kit for the MAX17760 in 5V Output-Voltage Application

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