RAA271000 is a general purpose Power Management Integrated Circuit (PMIC) suitable for the Renesas R-Car 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, reset generator, a dedicated safety-control state machine, and a safety shutdown path. An integrated 12-bit ADC monitors all input rails, output rails, 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 LIDAR systems
  • Automotive ADAS systems
  • Automotive Integrated Cockpit systems
  • Ideal power supply for the R-Car V3H SoC


Document title Document type Type Date Date
PDF 2.29 MB Datasheet
PDF 10.38 MB Manual - Hardware
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Design & Development

Boards & Kits

Boards & Kits



RAA27100X Power Management IC for R-Car SoCs