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Two/Three Output Low Noise LDO Linear Regulators

Industry's Only Auto-Qualified Low-Voltage Triple Output LDO Linear Regulator

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • 1.7V to 5.5V Input Voltage Range
  • Factory Selectable Output Voltage of 0.6V to 3.7875V in 12.5mV Steps
  • 37µVRMS Output Noise, 10Hz to 100kHz
  • 1.95mA (Max) Operating Supply Current
  • 70dB PSRR at 10kHz
  • 600mA Maximum Output Current (OUT1)
  • 300mA Maximum Output Current (OUT2/3)
  • ±1.25% DC Accuracy Over Load, Line, and Temperature
  • 155mV (Max) Dropout at IMAX1/2/3 Load (3.3VIN)
  • < 1µA Shutdown Supply Current
  • Overcurrent and Overtemperature Protection
  • Output-to-Input Reversed Current Protection
  • Individual Active-Low RESET Outputs
  • 3mm x 3mm 16 pin TQFN Package
  • -40°C to 125°C Grade 1 Automotive Temperature Range

Applications/Uses

  • Advanced Driver-Assistance Systems (ADAS)
  • Infotainment Systems
  • Point of Load

Description

The MAX25307/MAX25308 are a two/three output linear regulator family that deliver up to 600mA on channel 1 and up to 300mA on channels 2 and 3 with only 37μVRMS of output noise from 10Hz to 100kHz. These regulators maintain ±1.25% output accuracy over a wide input voltage range, requiring only 155mV (max) of input-to-output headroom at full load. The 1.95mA maximum no-load supply current is independent of dropout voltage. Each output is factory programmable between 0.6V to 3.7875V in 12.5mV steps. No external components are needed except for the input, output, and bypass capacitors. Each output has an independent enable input and active-low RESET output.

Simplified Block Diagram

MAX25307, MAX25308: Simplified Block Diagram MAX25307, MAX25308: Simplified Block Diagram 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 .