STMicroelectronics ST732
300 mA, 28 V Low-dropout voltage regulator, with 5 µA quiescent current
The ST732 is a 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.
Key features
- Wide input voltage range : 2.5 V to 28 V
- Ultra-low quiescent current
- High output voltage accuracy: ± 2%
- Output current up to 300 mA
Additional features
- Wide input voltage range: 2.5 V to 28 V
- Ultra-low quiescent current:
- 5 µA (typ) at no-load, 10 µA (max) across the 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.)
- Thermal shutdown protection
- Current limit protection
- -40 °C to +125 °C operating temperature range
Applications
- Post regulation
- Electronic meters
- Smoke detectors and alarms
- Portable equipment
- Industrial applications
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