MAX17624

RECOMMENDED FOR NEW DESIGNS

2.9V to 5.5V,1A, Synchronous Step-Down Converter with Integrated MOSFETs

High-Efficiency Synchronous Buck Regulator Offers Balance of High Performance, Wide Temperature Range, and Small Size

Data Sheet (Rev. 0)
Product Selection Table
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Overview

  • Easy to Use
    • 2.9V to 5.5V Input
    • Adjustable 0.8V to 3.3V Output
    • ±1% Feedback Accuracy
    • Up to 1A Output Current
    • Fixed 2MHz or 4MHz Operation
    • 100% Duty-Cycle Operation
    • Internally Compensated
    • All Ceramic Capacitors
  • High Efficiency
    • Selectable PWM- or PFM-Mode of Operation
    • Shutdown Current as Low as 0.1μA (typ)
  • Flexible Design
    • Internal Soft-Start and Prebias Startup
    • Open-Drain Power Good Output (PGOOD Pin)
  • Robust Operation
    • Overtemperature Protection
    • Overcurrent Protection
    • -40°C to +125°C Ambient Operating
    • Temperature/ -40°C to +150°C Junction Temperature

The Himalaya series of voltage regulator ICs, power modules, and chargers enable cooler, smaller, and simpler power supply solutions. MAX17623 and MAX17624 are high-frequency synchronous Himalaya step-down DC-DC converters with integrated MOSFETs and internal compensation. MAX17623 and MAX17624 have an input-voltage range of 2.9V to 5.5V, supports up to 1A, and output voltage can be adjusted from 0.8V to 3.3V.

The MAX17623 and MAX17624 employ peak-current mode control architecture under steady-state operation. To reduce input-inrush current, the devices offer a fixed 1ms soft-start time. Both devices feature selectable PWM for fixed frequency operation, or PFM mode for better efficiency at light loads. When PWM mode is selected, MAX17623 operates at a fixed 2MHz switching frequency and MAX17624 operates at a fixed 4MHz switching frequency. MAX17623 offers output voltages from 0.8V to 1.5V, and MAX17624 offers output voltages from 1.5V to 3.3V.

The MAX17623 and MAX17624 devices are available in a compact 8-pin, 2mm × 2mm TDFN package.

Applications

  • Point-of-Load Power Supply
  • Standard 5V Rail Supplies
  • Battery-Powered Applications
  • Distributed Power Systems
  • Industrial Sensors and Process Control
MAX17624
2.9V to 5.5V,1A, Synchronous Step-Down Converter with Integrated MOSFETs
MAX17623 MAX17624 Typical Application Circuit MAX17623/MAX17624 Circuit Diagam MAX17623/MAX17624 Pin Configuration MAX17623/MAX17624 Functional Diagram
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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

MAX17624EVKIT

Evaluation Kit for the MAX17623/MAX17624 Converters in Application

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Features and Benefits

  • 2.9V to 5.5V Input-Voltage Range
  • MAX17623 Offers High 92.2% Efficiency (VIN = 3.3V, VOUT = 1.5V, IOUT = 300 mA)
  • MAX17624 Offers High 94.5% Efficiency (VIN = 5V, VOUT = 3.3V, IOUT = 500 mA)
  • Selectable PWM and PFM Modes of Operation
  • Internal 1ms Soft-Start Time
  • PGOOD Output with Pullup Resistor to Respective Input Voltages
  • Low-Profile, Surface-Mount Components
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17623/MAX17624 evaluation kits (EV kits) provide a proven design to evaluate the performance of the MAX17623/MAX17624 converters. Each of these devices operates over an input range from 2.9V to 5.5V and delivers up to 1A output current. The devices are configured to demonstrate optimum performance and component sizes in the EV kits.

The MAX17623 converter delivers up to 1A at a switching frequency of 2MHz. The converter is configured for a 1.5V output over a 2.9V to 5.5V input range.

The MAX17624 converter delivers up to 1A at a switching frequency of 4MHz. The converter is configured for a 3.3V output over a 3.6V to 5.5V input range.

The EV kits feature provisions for selecting Mode of operation (PWM/PFM) enabling or disabling the output and PGOOD signal. The MAX17623/MAX17624 converter data sheet provides a complete description of the parts, that should be read in conjunction with this data sheet prior to operating the EV kits.

Applications

  • Battery-Powered Applications
  • Distributed Power Systems
  • Industrial Sensors and Process Control
  • Point-of-Load Power Supply
  • Standard 5V Rail Supplies

MAX17623EVKIT

Evaluation Kit for the MAX17623/MAX17624 Converters in Application

Buy Now View Details

Features and Benefits

  • 2.9V to 5.5V Input-Voltage Range
  • MAX17623 Offers High 92.2% Efficiency (VIN = 3.3V, VOUT = 1.5V, IOUT = 300 mA)
  • MAX17624 Offers High 94.5% Efficiency (VIN = 5V, VOUT = 3.3V, IOUT = 500 mA)
  • Selectable PWM and PFM Modes of Operation
  • Internal 1ms Soft-Start Time
  • PGOOD Output with Pullup Resistor to Respective Input Voltages
  • Low-Profile, Surface-Mount Components
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17623/MAX17624 evaluation kits (EV kits) provide a proven design to evaluate the performance of the MAX17623/MAX17624 converters. Each of these devices operates over an input range from 2.9V to 5.5V and delivers up to 1A output current. The devices are configured to demonstrate optimum performance and component sizes in the EV kits.

The MAX17623 converter delivers up to 1A at a switching frequency of 2MHz. The converter is configured for a 1.5V output over a 2.9V to 5.5V input range.

The MAX17624 converter delivers up to 1A at a switching frequency of 4MHz. The converter is configured for a 3.3V output over a 3.6V to 5.5V input range.

The EV kits feature provisions for selecting Mode of operation (PWM/PFM) enabling or disabling the output and PGOOD signal. The MAX17623/MAX17624 converter data sheet provides a complete description of the parts, that should be read in conjunction with this data sheet prior to operating the EV kits.

Applications

  • Battery-Powered Applications
  • Distributed Power Systems
  • Industrial Sensors and Process Control
  • Point-of-Load Power Supply
  • Standard 5V Rail Supplies
MAX17624EVKIT
Evaluation Kit for the MAX17623/MAX17624 Converters in Application
MAX17623EVKIT
Evaluation Kit for the MAX17623/MAX17624 Converters in Application

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