ST732 – 300mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current

ST732 – 300mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current

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.

Key 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 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

more information: https://www.st.com/en/power-management/st732.html

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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