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PM8903TR - 3A step-down monolithic switching regulator

Download the PM8903TR datasheet PDF. This datasheet also covers the PM8903 variant, as both devices belong to the same 3a step-down monolithic switching regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The PM8903 is a high efficiency monolithic stepdown switching regulator designed to deliver up to 3 A continuous current.

The IC operates from 2.8 V to 6 V input voltage (VIN).

Key Features

  • Integrated 35 mΩ MOSFETs for high efficiency.
  • 3 A continuous output current.
  • 2.8 V to 6 V input voltage (VIN).
  • 2.9 V to 5.5 V supply voltage (VCC).
  • Adjustable output voltage down to 0.6 V.
  • 1% output voltage accuracy.
  • 1.1 MHz switching frequency operation.
  • PSKIP mode to optimize light load efficiency.
  • Embedded bootstrap diode.
  • Thermally compensated loss-less current sense across HS and LS MOSFETs.
  • OV/UV/OC and overtemperature protection.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (PM8903-STMicroelectronics.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by STMicroelectronics

Part Number Description
PM8903 3A step-down monolithic switching regulator
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PM8908TR Monolithic buck converter
PM8800 Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller
PM8800A Integrated IEEE 802.3af compliant PoE-PD interface and PWM controller

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.

View original datasheet text
PM8903 3 A step-down monolithic switching regulator Features ■ Integrated 35 mΩ MOSFETs for high efficiency ■ 3 A continuous output current ■ 2.8 V to 6 V input voltage (VIN) ■ 2.9 V to 5.5 V supply voltage (VCC) ■ Adjustable output voltage down to 0.6 V ■ 1% output voltage accuracy ■ 1.