MAX38902E

PRODUCTION

14μVRMS Low Noise 500mA LDO Linear Regulator

14μVRMS, Low-Noise, Low-Dropout, 500mA Linear Regulators in a 2mm x 2mm TDFN Package

Data Sheet (Rev. 2) Product Selection Table
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Overview

  • Delivers Flexible Operating Range
    • 1.7V to 5.5V Input Voltage Range
    • 0.8V to 5.0V Output Voltage Range
    • 500mA Maximum Output Current
    • 100mV Maximum Dropout at 500mA Load (3.6VIN)
    • < 0.1µA Shutdown Supply Current
  • Reduces Noise and Improved Accuracy
    • 14µVRMS Output Noise, 10Hz to 100kHz
    • 600µA Operating Supply Current
    • 45dB PSRR at 100kHz
    • ±1% DC Accuracy Over Load, Line, and Temperature
  • Enables Easy-of-Use and Robust Protection
    • Minimum COUT 4µF
    • Programmable Soft-Start Rate
    • Overcurrent and Overtemperature Protection
    • Output-to-Input Reversed Current Protection
    • POK Output
    • Active Discharge of 800Ω at OUT
  • Reduces Size, Improves Reliability
    • 2mm x 2mm 8-pin TDFN Package
    • -40°C to 125°C Operating Temperature

The MAX38902E is low-noise linear regulator that delivers up to 500mA of output current with only 14μVRMS of output noise from 10Hz to 100kHz. This regulator maintains ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 600µA no-load supply current is independent of dropout voltage. The MAX38902E has an 800Ω active discharge feature to quickly discharge output capacitors.

The MAX38902E has a resistor adjustable output voltage in the range of 0.8V to 5.0V and includes an active-low POK output. The device features a programmable output soft-start rate, output over-current and thermal overload protection.

The MAX38902E is offered in an 8-pin TDFN package.

 

Applications

  • Audio Systems
  • Communication Circuitry
  • High-Resolution Data Acquisition Systems
MAX38902E
14μVRMS Low Noise 500mA LDO Linear Regulator
MAX38902E: Simplified Functional Diagram
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Documentation

Data Sheet 1

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Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • MAX38902B
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

MAX38902EEVKIT

Evaluation Kit for the MAX38902E

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Features and Benefits

  • Evaluates the MAX38902E IC in an 8-pin (2mm x 2mm) TDFN
  • 1.7V to 5.5V Input Range
  • 0.8V to 5.0V Resistor Configurable Output Voltage
  • Up to 500mA Output Current
  • Proven 2-Layer 1-oz Copper PCB Layout
  • Demonstrates Compact Solution Size
  • Fully Assembled and Tested

Product Details

The MAX38902E evaluation kit (EV kit) evaluates the MAX38902E IC. The MAX38902E is a low noise linear regulator in a TDFN package. The MAX38902E EV kit operates over an input range of 1.7V to 5.5V and provides any output voltage from 0.8V to 5.0V and delivers up to 500mA of current.

The EV kit comes with the MAX38902EATA+ installed.

Applications

  • Audio Systems
  • Communication Circuitry
  • High-Resolution Data Acquisition Systems
MAX38902EEVKIT
Evaluation Kit for the MAX38902E

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