MAX38909
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MAX38909

2A High-Performance nMOS LDO Linear Regulator

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Fast Transient Response, High PSRR NMOS Linear Regulators that Deliver up to 2A Load Current

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
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1ku List Price Starting From $2.12
Features
  • Delivers Flexible Operating Range
    • 0.9V to 5.5V Input Voltage Range
    • 2.7V to 20V BIAS Voltage Range
    • 0.6V to 5.0V Programmable Output Voltage
    • 2A Maximum Output Current
    • 27mV Dropout at 2A Load Current
    • 1.6mA Operating BIAS Supply Current
  • Reduces Noise and Improves Accuracy
    • ±1% DC Accuracy Over Load, Line, and Temperature
    • 15mV 2A Load Transient Excursion
    • 52dB IN PSRR at 10kHz at 300mV Input-to-Output Headroom
  • Enables Ease-of-Use and Robust Protection
    • Stable with 10µF (Minimum) Output Capacitance
    • Programmable Soft-Start Rate
    • Overcurrent and Overtemperature Protection
    • Output-to-Input Reverse Current Protection
    • Power-OK Status Pin
  • Reduces Size, Improves Reliability
    • 14-Pin (3mm x 3mm) TDFN and 5 x 3 Bump, 0.4mm Pitch WLP Packages
    • -40°C to +125°C Operating Temperature
Additional Details
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The MAX38909 is a fast transient response, high PSRR nMOS linear regulator that delivers up to 2A of load current.

The regulator supports a wide input supply range from 0.9V to 5.5V, and BIAS voltage range from 2.7V to 20V to provide wider supply options in a variety of applications. ±1% output accuracy is maintained over line, load, and temperature variations, requiring only 300mV of input-to-output headroom at full load for a good PSRR. The output voltage can be adjusted to accommodate customers that desire to specify a single LDO in the BOM for multiple voltage rails.

The output voltage on the MAX38909 is programmed to a value in the range of 0.6V to 5.0V by using two external feedback resistors.

The LDO is fully protected from damage by internal circuitry that provides programmable inrush current limiting, output overcurrent limiting, reverse-current limiting, and thermal overload protection.

The MAX38909 is offered in 14-pin, 3mm x 3mm TDFN and 5 x 3 bump, 0.4mm pitch WLP packages.

Applications

  • Base Stations
  • FPGAs and DSPs
  • Medical, Audio, and Instrumentation
  • PLCs
  • Portable Cameras
  • Server Microcontrollers
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file View Data Sheet (Rev.1)
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Part Models 4
1ku List Price Starting From $2.12
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MAX38909

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Data Sheet

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UPDATED 01/05/2021
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MAX38909: 2A High-Performance nMOS LDO Linear Regulator Data Sheet (Rev.1)

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UPDATED 05/05/2022
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LDO Linear Regulators Paralleling with MAX38908 for High Current Applications redirect icon

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UPDATED 01/06/2022
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MAX38908を使用したLDOリニアレギュレータの並列接続によって大電流アプリケーションに対応 redirect icon

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Documentation

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2022-10-04

06:51

Introduction to the MAX38907 MAX38908 MAX38909 2A/4A High Performance LDO Linear Regulator

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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
MAX38909ANL+ 15-WLCSP-N/A external-link
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MAX38909ANL+T 15-WLCSP-N/A external-link
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MAX38909ATD+ Thin Dual Flatpack No Leads external-link
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MAX38909ATD+T Thin Dual Flatpack No Leads external-link
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Jan 20, 2021

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Apr 27, 2024

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Apr 27, 2024

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- 2419N

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Software & Part Ecosystem

Evaluation Kits 1

MAX38909EVK-TDFN

Evaluation Kit for the MAX38909

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MAX38909EVK-TDFN

Evaluation Kit for the MAX38909

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MAX38909EVK-TDFN
Evaluation Kit for the MAX38909

Features and Benefits

  • Evaluates the MAX38909 IC in a 14-pin (3mm x 3mm) TDFN
  • 0.9V to 5.5V Input Range
  • 2.7V to 20V Bias Voltage to Provide Wider Supply Options
  • 0.6V to 5.0V Resistor Configurable Output Voltage (Default Output Set to 1V)
  • Up to 2A Output Current
  • Proven 4-Layer 1-oz Copper PCB Layout
  • Demonstrates Compact Solution Size
  • Fully Assembled and Tested
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Product Detail

The MAX38909 TDFN evaluation kit (EV kit) evaluates the MAX38909 in a TDFN package. The MAX38909 is a low input voltage, high output current linear regulator. The EV kit operates over an input range of 0.9V to 5.5V and a bias voltage range from 2.7V to 20V. The EV kit provides a resistor configurable output voltage range from 0.6V to 5.0V. The EV kit can deliver up to 2A of current.

Applications

  • Base Stations
  • FPGAs and DSPs
  • Medical, Audio, and Instrumentation
  • PLCs
  • Portable Cameras
  • Server μPs

Evaluation Kits1

MAX38909EVK-TDFN

Evaluation Kit for the MAX38909

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