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12µVRMS Low Noise 500mA LDO Linear Regulator

Low-Voltage 500mA, 12µVRMS Low-Noise LDO

Product Details

Key Features

Applications/Uses

Parametric specs for Linear Regulators
VIN (V) (min) 1.7
VIN (V) (max) 5.5
Rated ILOAD (mA) 700
Preset VOUT (V) 3
4
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.036
ICC (µA) (max) 0.8
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +125
Package/Pins TDFN-CU/8
Budgetary
Price (See Notes)
1.85
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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
Rated ILOAD (mA) 700
Preset VOUT (V) 3
4
5
# Regulators 1
VDROPOUT @Rated ILOAD (V) (typ) 0.036
ICC (µA) (max) 0.8
Ref. Bypass Yes
Low Batt./ Pwr. Fail Out No
Watchdog No
Reverse Batt. Protect. Yes
Oper. Temp. (°C) -40 to +125
Package/Pins TDFN-CU/8
Budgetary
Price (See Notes)
1.85

Key Features

  • 1.7V to 5.5V Input Voltage Range
  • 0.6V to 5.3V Output Voltage Range
  • 12µVRMS Output Noise, 10Hz to 100kHz
  • 365µA Operating Supply Current
  • 70dB PSRR at 10kHz
  • 500mA Maximum Output Current
  • ±1% DC Accuracy Over Load, Line, and Temperature
  • 100mV (Max) Dropout at 500mA Load (3.6VIN)
  • < 0.1µA Shutdown Supply Current
  • Stable with 2µF(Min) Output Capacitance
  • Programmable Soft-Start Rate
  • Overcurrent and Overtemperature Protection
  • Output-to-Input Reversed Current Protection
  • POK Output
  • 2mm x 2mm 8-pin TDFN Package
  • AEC-Q100
  • -40°C to 125°C Operating Temperature

Applications/Uses

  • Audio Systems
  • Automotive Electronics
  • High-Resolution Data Acquisition Systems

Description

The MAX25300A/B are low-noise linear regulators that deliver up to 500mA of output current with only 12µVRMS of output noise from 10Hz to 100kHz. These regulators maintain ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 365µA no-load supply current is independent of dropout voltage.

The MAX25300A has nine pin-selectable output voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V. The MAX25300B has a resistor adjustable output voltage in the range of 0.6V to 5.3V. The MAX25300B also includes an active-high POK output.

The MAX25300A/B are offered in an 8-pin TDFN package.

Simplified Block Diagram

MAX25300A, MAX25300B: Typical Operating Circuit MAX25300A, MAX25300B: Typical Operating Circuit Zoom icon

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 .