SOT23-5L

Features

•

Wide input voltage range : 2.5 V to 28 V

•

Ultra-low quiescent current: typ. 5 µA at no-load, 10 µA max. across full

temperature range

•

Output voltage accuracy: ± 2%

•

Output current up to 300 mA

•

Fixed output voltage versions, starting from 1.2 V with 100 mV step

•

Stable with low ESR capacitors (0.47 µF min.)

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Thermal shutdown protection

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Current limit protection

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-40 °C to +125 °C operating temperature range

Applications

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Post regulation

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Electronic meters

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Smoke detectors / alarms

•

Portable equipment

•

Industrial applications

Description

The ST732 is 300 mA LDO regulator, designed to be used in several medium voltage

applications.

Ultra-low quiescent current of 5 µA makes it suitable for applications permanently

connected to power supply/battery.

This feature is also useful when electronic modules remain permanently turned on.

The ST732 embeds protection functions, such as: current limit, short-circuit and

thermal shutdown. The extended input voltage range, very low drop voltage and

low quiescent current features make it suitable also for low power after-market

automotive and consumer applications.

Maturity status link

ST732

300 mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current

ST732

Datasheet

DS12561 - Rev 3 - April 2021

For further information contact your local STMicroelectronics sales office.

www.st.com