MAX17576

PRODUCTION

4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

A High-Efficiency, High-Voltage, Synchronous Step-Down DC-DC Converter with Integrated MOSFETs

Data Sheet (Rev. 3) Product Selection Table
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Part Details

  • Reduces External Components and Total Cost
    • No Schottky-Synchronous Operation
    • Internal Compensation for Any Output Voltage
    • All-Ceramic Capacitors, Compact Layout
  • Reduces Number of DC-DC Regulators to Stock
    • Wide 4.5V to 60V Input
    • Adjustable Output Voltage Range from 0.9V up to 90% of VIN
    • 100kHz to 2.2MHz Adjustable Switching Frequency with External Clock Synchronization
  • Reduces Power Dissipation
    • Peak Efficiency of 94.8%
    • PFM and DCM Modes Enable Enhanced Light-Load Efficiency
    • Auxiliary Bootstrap Supply (EXTVCC) for Improved Efficiency
    • 2.8µA Shutdown Current
  • Operates Reliably in Adverse Industrial Environments
    • Hiccup Mode Overload Protection and Auto-Retry Startup
    • Adjustable Soft-Start
    • Built-In Output-Voltage Monitoring with Active-Low RESET
    • Programmable EN/UVLO Threshold
    • Monotonic Startup Into Prebiased Output Load
    • Overtemperature Protection
    • Wide -40°C to +125°C Ambient Operating Temperature Range/-40°C to +150°C Junction Temperature Range
MAX17576
4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation
MAX17576: Typical 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

MAX17576EVKITA

Evaluation Kit for the MAX17576 3.3V Output-Voltage Application

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Features and Benefits

  • Operates from a 4.5V to 60V Input Supply
  • 3.3V Output Voltage
  • Up to 4A Output Current
  • 350kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • MODE/SYNC Pin to Select Either PWM, PFM, or DCM Mode
  • Open-Drain Active-Low RESET Output
  • External Clock Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17576EVKITA# evaluation kit (EV kit) provides a proven design to evaluate the MAX17576 high-voltage, high-efficiency, synchronous step-down DC-DC converter. The EV kit is preset for 3.3V output at load currents up to 4A and features a 350kHz 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 thermal performance. For more details about the device features and benefits, refer to the MAX17576 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

MAX17576EVKITB

Evaluation Kit for the MAX17576 5V Output-Voltage Application

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Features and Benefits

  • Operates from a 6.5V to 60V Input Supply
  • 5V Output Voltage
  • Up to 4A Output Current
  • 350kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • MODE/SYNC Pin to Select Either PWM, PFM, or DCM Mode
  • Open-Drain Active-Low RESET Output
  • External Frequency Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested
  • CISPR-22 Class B Compliant

Product Details

The MAX17576EVKITB# output evaluation kit (EV kit) provides a proven design to evaluate the MAX17576 high-voltage, high-efficiency, synchronous step-down DC-DC converter. The EV kit is preset for 5V output at load currents up to 4A and features a 350kHz 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. 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 MAX17576 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
MAX17576EVKITA
Evaluation Kit for the MAX17576 3.3V Output-Voltage Application
MAX17576EVKITB
Evaluation Kit for the MAX17576 5V Output-Voltage Application

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