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RAA271082 - Automotive PMIC

General Description

3.

10 3.1 Absolute Maximum Ratings

Key Features

  • ASIL-D ISO26262 Development Process.
  • VIN Operating Range from 4.0 to 42V.
  • Start Range 4.5 to 42V.
  • Fixed Switching frequency: 2.2MHz with optional pseudo-random spread spectrum.
  • Three synchronous bucks with internal compensation and one LDO.
  • Buck1 output range: 2.8V to 5.05V, up to 1A.
  • Buck2/3 output range: 0.85V to 3.3V, up to 1A.
  • LDO4 output range: 2.7V to 3.4V, up to 300mA.
  • OTP UV/OV Thresholds: ±4%, ±6%, ±8%, ±12%.
  • OTP power u.

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Full PDF Text Transcription (Reference)

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Datasheet RAA271082 Automotive PMIC with Three Synchronous Buck Regulators and One Low Dropout Linear Regulator The RAA271082 is a versatile multi-rail power IC comprised of a primary high voltage synchronous buck regulator, two secondary low voltage synchronous buck regulators, and an LDO regulator. It offers four overvoltage and undervoltage monitors, I2C communications, a general-purpose I/O pin, and a dedicated reset output/fault indicator. RAA271082 was designed using an ASIL-D ISO-26262 development process and is intended to meet ASIL-B device metrics. The RAA271082 includes a second bandgap reference for the OV/UV monitors, built-in self-test at power-up, independent OV/UV monitoring, and continuous CRC error checking on internal registers and I2C communications.