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AN734 - Design Guidelines for the Low-Noise Low-Dropout Regulator Si9181

Key Features

  • of the Si9181, a 350-mA CMOS low-dropout (LDO), low-noise voltage regulator. Providing very low ground current to extend battery life, the Si9181 also offers superior line/load transient response and ripple rejection. Designed to maintain regulation while delivering currents from 0 mA to 600 mA, the Si9181 regulator also features an “out of regulation” error flag signal and ON/OFF control input for complete shutdown. The Si9181 was designed for.

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Datasheet Details

Part number AN734
Manufacturer Vishay
File Size 47.46 KB
Description Design Guidelines for the Low-Noise Low-Dropout Regulator Si9181
Datasheet download datasheet AN734 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AN734 Vishay Siliconix Design Guidelines for the Low-Noise Low-Dropout Regulator—Si9181 Nitin Kalje INTRODUCTION This application note discusses the operation and features of the Si9181, a 350-mA CMOS low-dropout (LDO), low-noise voltage regulator. Providing very low ground current to extend battery life, the Si9181 also offers superior line/load transient response and ripple rejection. Designed to maintain regulation while delivering currents from 0 mA to 600 mA, the Si9181 regulator also features an “out of regulation” error flag signal and ON/OFF control input for complete shutdown. The Si9181 was designed for applications requiring a regulated voltage equal to or less than the voltage of the source or battery, and requiring very low output noise.