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14μVRMS Low Noise 500mA LDO Linear Regulator

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

Product Details

Key Features

Parametric specs for Linear Regulators
VIN (V) (min) 1.7
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 0.8
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 500
Preset VOUT (V) 3
4
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.05
ICC (µA) (max) 1500
Output Voltage Noise (µV RMS) (typ) 14
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +125
Package/Pins TDFN-CU/8
Budgetary
Price (See Notes)
0.79
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Simplified Block Diagram

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Parameters

Parametric specs for Linear Regulators
VIN (V) (min) 1.7
VIN (V) (max) 5.5
Adj. VOUT (V) (min) 0.8
Adj. VOUT (V) (max) 5
Rated ILOAD (mA) 500
Preset VOUT (V) 3
4
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.05
ICC (µA) (max) 1500
Output Voltage Noise (µV RMS) (typ) 14
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. No
Oper. Temp. (°C) -40 to +125
Package/Pins TDFN-CU/8
Budgetary
Price (See Notes)
0.79

Key Features

  • 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
    • Active-Low POK Output
  • Reduces Size, Improves Reliability
    • 2mm x 2mm 8-pin TDFN Package
    • -40°C to 125°C Operating Temperature

Applications/Uses

  • Audio Systems
  • Communication Circuitry
  • High-Resolution Data Acquisition Systems

Description

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 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.

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.