General Description

The MAX15038 high-efficiency switching regulator delivers up to 4A load current at output voltages from 0.6V to 90 of VIN. The IC operates from 2.9V to 5.5V, making it ideal for on-board point-of-load and postregulation applications. Total output error is less than ±1 over load, line, and temperature ranges.

Features

♦ Internal 31mΩ RDS(ON) High-Side and 24mΩ RDS(ON) Low-Side MOSFETs

♦ Continuous 4A Output Current Over Temperature

♦ ±1 Output Accuracy Over Load, Line, and Temperature

♦ Operates from 2.9V to 5.5V VIN Supply

♦ Adjustable Output from 0.6V to (0.9 x VIN)

♦ Soft-Start Reduces Inrush Supply Current

♦ 500kHz to 2MHz Adjustable Switching Frequency

♦ Compatible with Ceramic, Polymer, and Electrolytic Output Capacitors

♦ Nine Preset and Adjustable Output Voltages 0.6V, 0.7V, 0.8V, 1.0V, 1.2V, 1.5V, 1.8V, 2.0V, 2.5V, and Adjustable

♦ Monotonic Startup for Safe-Start into Prebiased Outputs

♦ Selectable Forced PWM or Skip Mode for Light Load Efficiency

♦ Overcurrent and Overtemperature Protection

♦ Output Current Sink/Source Capable with Cycleby-Cycle Protection

♦ Open-Drain Power-Good Output

♦ Lead-Free, 4mm x 4mm, 24-Pin Thin QFN Package

Applications

    Server Power Supplies

    POLs

    ASIC/CPU/DSP Core and I/O Voltages

    DDR Power Supplies

    Base-Station Power Supplies

    Telecom and Networking Power Supplies

    RAID Control Power Supplies