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LP2975 - MOSFET LDO Driver/Controller

Description

A high-current LDO regulator is simple to design with the LP2975 LDO Controller.

Using an external P-FET, the LP2975 will deliver an ultra low dropout regulator with extremely low quiescent current.

High open loop gain assures excellent regulation and ripple rejection performance.

Features

  • 1.
  • 2 Simple to Use, Few External Components.
  • Ultra-small VSSOP-8 Package.
  • 1.5% (A Grade) Precision Output Voltage.
  • Low-power Shutdown Input.
  • < 1 µA in Shutdown.
  • Low Operating Current (180 µA Typical @ VIN = 5V).
  • Wide Supply Voltage Range (1.8V to 24V).
  • Built-in Current Limit Amplifier.
  • Overtemperature Protection.
  • 5.0V, and 3.3V Standard Output Voltages.
  • Can be Programmed Using External Divider.

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Full PDF Text Transcription

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LP2975 www.ti.com SNVS006F – SEPTEMBER 1997 – REVISED APRIL 2013 MOSFET LDO Driver/Controller Check for Samples: LP2975 FEATURES 1 •2 Simple to Use, Few External Components • Ultra-small VSSOP-8 Package • 1.5% (A Grade) Precision Output Voltage • Low-power Shutdown Input • < 1 µA in Shutdown • Low Operating Current (180 µA Typical @ VIN = 5V) • Wide Supply Voltage Range (1.8V to 24V) • Built-in Current Limit Amplifier • Overtemperature Protection • 5.0V, and 3.3V Standard Output Voltages • Can be Programmed Using External Divider • −40°C to +125°C Junction Temperature Range APPLICATIONS • High-current 5V to 3.3V Regulator • Post Regulator for Switching Converter • Current-limited Switch DESCRIPTION A high-current LDO regulator is simple to design with the LP2975 LDO Controller.
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