RAA271000 is a general-purpose power management integrated circuit (PMIC) suitable for the Renesas R-Car system-on-chip (SoC) series. RAA271000 contains five DC/DC buck regulators and two low-dropout linear regulators (LDO). Supporting up to ASIL C functional safety, the RAA271000 includes an independent reference for monitoring functions, dual internal temperature monitors, challenge-response watchdog timer, SoC error pin monitors, a reset generator, a dedicated safety-control state machine, and a safety shutdown path. An integrated 12-bit ADC monitors all input rails, output rails, and internal temperature, and includes additional inputs to monitor external analog sources.


  • Input range: 2.7V to 5.5V
  • Five switching regulators with adjustable output
  • VOUT from 0.3V ~ 3.3V at:
    • 15A (Buck 1)
    • 2A (Buck 2-3)
    • 4A (Buck 4-5)
  • Programmable current limits for all bucks
  • Two linear regulators
    • Output 0.6V to 3.6V at 300mA (LDO1-2)
  • 12-bit analog-to-digital converter for monitoring
  • Configurable through I2C or SPI interface
  • Programmable power sequence
  • Supports R-Car SoC sequence of activation
  • Challenge-response watchdog timer
  • Dual thermal protection system
  • 60-ball BGA package, 0.8mm pitch
  • ASILC Functional Safety (ISO 26262)
  • AEC-Q100 qualified (Grade 1)




  • Automotive vision systems
  • Automotive Light Detection and Ranging (LiDAR) systems
  • Advanced Driver Assistance Systems (ADAS) systems
  • Automotive integrated cockpit systems
  • Ideal power supply for the R-Car V3H SoC


Type Title Date
Datasheet PDF 2.29 MB
Manual - Hardware Log in to Download PDF 10.38 MB
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