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LR3989 - Micropower 300mA Ultra Low-Dropout CMOS Voltage Regulator

Description

The LR3989 is a 300mA low dropout regulator designed specially to meet requirements of Portable battery applications.

The LR3989 is designed to work with space saving, small 1µFceramic capacitor.

Features

  • an Error Flag output that indicates a faulty output condition. The LR3989's performance is optimized for battery powered systems to deliver low noise, extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life. Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz. High power supply rejection is maintained down to lower input voltage levels common to battery op.

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Datasheet Details

Part number LR3989
Manufacturer LRC
File Size 212.81 KB
Description Micropower 300mA Ultra Low-Dropout CMOS Voltage Regulator
Datasheet download datasheet LR3989 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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LESHAN RADIO COMPANY, LTD Micropower 300mA Ultra Low-Dropout CMOS Voltage Regulator with Power Good LR3989 General Description The LR3989 is a 300mA low dropout regulator designed specially to meet requirements of Portable battery applications. The LR3989 is designed to work with space saving, small 1µFceramic capacitor. The LR3989 features an Error Flag output that indicates a faulty output condition. The LR3989's performance is optimized for battery powered systems to deliver low noise, extremely low dropout voltage and low quiescent current. Regulator ground current increases only slightly in dropout, further prolonging the battery life. Power supply rejection is better than 60 dB at low frequencies and starts to roll off at 10 kHz.
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