Analog Devices / Maxim Integrated MAX17623/MAX17624 Step-Down Converters

Analog Devices Inc. MAX17623/MAX17624 Step-Down Converters are part of the Himalaya series of products that enable cooler, smaller, and simpler power supply solutions. The MAX17623 and MAX17624 are high-frequency converters with integrated MOSFETs and internal compensation. The MAX17623/MAX17624 offer 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.

ADI MAX17623/MAX17624 Step-Down Converters employ peak-current mode control architecture under steady-state operation. To reduce input-inrush current, the Converters deliver 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 runs at a fixed 4MHz switching frequency. MAX17623 supports 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.

Features

  • 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

Applications

  • Point-of-load power supply
  • Standard 5V rail supplies
  • Battery-powered applications
  • Distributed power systems
  • Industrial sensors and process control

Typical Application Circuit

Application Circuit Diagram - Analog Devices / Maxim Integrated MAX17623/MAX17624 Step-Down Converters

Analog Devices / Maxim Integrated MAX17623/MAX17624 Step-Down Converters