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4µVRMS Ultra-Low-Noise 1A LDO with Two-

Level Output Voltage Selection

MAX38913, MAX38914

19-101015; Rev 3; 4/23

© 2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.

General Description

The MAX38913/MAX38914 is a low-noise linear

regulator that delivers up to 1A of load current with as

low

as

4µVRMS

of

output

noise.

The

MAX38913/MAX38914 can dynamically change its

output voltage between two separate levels. The

MAX38913/MAX38914 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/MAX38914

consumes

very

little

quiescent current. The MAX38913/MAX38914 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 MAX38914 has

pre-programmed output voltage levels of 2.3V and 2V.

The MAX38913/MAX38914 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.

Applications

• Image Sensors

• Portable Sensor Applications

• SD Memory Cards

Ordering Information appears at end of data sheet.

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

(MAX38913)

• 2V, 2.3V Pre-Programmed Voltage Levels

(MAX38914)

• 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