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2A Automotive Low Noise LDO Linear Regulators

Low 5.1µVRMS Noise 2A LDO

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • Delivers Flexible Operating Range
    • 1.7V to 5.5V Input Voltage Range
    • 0.6V to 5.0V Programmable Output Voltage
    • 2A Maximum Output Current
    • 100mV Maximum Dropout at 2A Load
    • < 1.5μA Shutdown Supply Current
  • Reduces Noise and Improves Accuracy
    • ±1% DC Accuracy Over Load, Line, and Temperature
    • 5.1µVRMS Output Noise, 10Hz to 100kHz
    • 1.3mA Quiescent Supply Current
    • > 70dB PSRR at 10kHz
  • Enables Ease-of-Use and Robust Protection
    • Stable with 8μF (Min) Output Capacitance
    • Programmable Soft-Start Rate
    • Overcurrent and Overtemperature Protection
    • Output-to-Input Reverse-Current Protection
    • Power-OK Status Pin
  • Reduces PC Board Area
    • 3mm x 3.5mm 14-pin TDFN Package
  • AEC-Q100
    • -40°C to 125°C Operating Temperature

Applications/Uses

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

Description

The MAX25302A/B are 1.7V–5.5V VIN, low-noise linear regulators that delivers up to 2A of output current with only 5.1μVRMS of output noise from 10Hz to 100kHz. The regulator maintains ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 1.3mA no-load supply current is independent of dropout voltage.

The output voltage on MAX25302B can be adjusted to a value in the range of 0.6V to 5.0V by using two external resistors. The MAX25302B also includes an active-high POK signal for trouble-free load startup.

The MAX25302A has nine pin-selectable output voltages: 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V.

All versions include a programmable output soft-start rate, output overcurrent, and thermal-overload protection.

The MAX25302A/B are offered in a 3mm x 3.5mm, 14-pin TDFN package.

Simplified Block Diagram

MAX25302A, MAX25302B: Typical Operating Circuit MAX25302A, MAX25302B: 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 .