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General Description

The MAX38913 is a low-noise linear regulator that

delivers up to 1A of load current with as low as 4μVRMS

of output noise. The MAX38913 can dynamically change

its output voltage between two separate levels. The

MAX38913 has the pass-through mode which, when

enabled, completely bypasses the linear regulator.

This regulator maintains ±1 output accuracy over a

wide input voltage range, temperature, and load

conditions. The no-load quiescent current in the

regulation mode is 1.37mA. During the pass-through

mode, unlike the conventional dropout mode of an LDO,

the MAX38913 consumes very little quiescent current.

The MAX38913 has a 6Ω active discharge feature to

quickly discharge output capacitors of up to 300μF.

The MAX38913 has 33 programmable output-voltage

settings for both voltage selections.

The MAX38913 is packaged in either a space-saving

12-bump WLP or a full-featured 3mm x 3mm, 14-pin

TDFN package. Optional power-OK and power-on-reset

pins are available in the 14-pin TDFN version.

Benefits and Features

? Delivers Flexible Output Range

? 1.8V to 5.5V Input Voltage Range

? 0.6V to 5.0V Output Voltage Range

? 1A Maximum Output Current

? 28mV Dropout at 1A Load Current and 5.0V Supply

? 33mV Dropout at 1A Load Current and 3.6V Supply

? Excellent DC and AC Performance

? 1 Regulation over Line, Load, and Temperature

? 4μVRMS of Output Noise, 10Hz to 100kHz

? 75dB PSRR at 10kHz

? High-Level System Integration

? Integrated Pass-Through Function

? Fast Active Discharge of 6Ω at OUT

? Dynamic Two-Level Voltage Scaling with 33

Levels for Each Option for Flexible Configuration

? Stable with 4μF (Minimum Capacitance)

? Overcurrent and Overtemperature Protection

? Power-OK/Power-on-Reset Output

? Operation Temperature Range from -40°C to +125°C

? Package

? 12-Bump, 0.4mm-Pitch WLP

? 14-Pin, 3mm x 3mm TDFN

Applications

? Image Sensors

? Portable Sensor Applications

? SD Memory Cards