Features
- Input Voltage Range 2.7V to 5.5V
- 5 High-Efficiency Switching Regulators with adjustable output voltages
- 12A (Buck1); VOUT from 0.3V to 3.3V
- 2.5A (Buck2–Buck5); VOUT from 0.3V to 3.3V
- Merge-mode 2 × 2.5A regulators = 5A
- Buck5 can operate as an asynchronous boost
- 6 Linear Drop-Out (LDO) Regulators
- 4 × 60mA; VOUT = 1.8V or 3.3V
- 2 × 500mA; VOUT = 0.6V to 3.3V
- Programmable current limits for all bucks
- 12-bit Analog to Digital converter for monitoring with programmable OV/UV thresholds
- Programmable power sequence. Fully supports S4 sequence requirements
- Low-Iq Deep-stop / Always On (AWO) Mode
- Suspend-to-RAM / DDR-backup Mode
- Supports R-Car SoC Activation
- Q&A Watchdog Timer
- Configurable through I2C or SPI interface
- SoC and MCU error pin monitors
- AEC-Q100 Grade 1 qualified
Description
The RAA271005 is a general-purpose Power Management IC (PMIC) suitable for the R-Car SoC series. It contains five DC/DC switching regulators and six low-drop-out linear regulators (LDOs). A DCDC5 switching regulator can be configured to operate in buck or boost mode.
The RAA271005 PMIC supports low-power operation, with three switching regulators (Buck3 to Buck5) optimized for low quiescent current consumption.
RAA271005 supports up to ASIL D functional safety and includes an independent reference for monitoring the output voltages, dual internal temperature monitors, a challenge-response watchdog timer, SoC and MCU 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, internal temperature, and includes additional inputs to monitor external analog sources.
RAA271005 is available in a 6 × 11 BGA package, with 0.65mm pitch. The device is offered for AECQ100 Grade 1 operation, supporting an ambient temperature range of -40°C to +125°C.
See also the RAA271041. This product works together with the RAA271005 to support RCAR-S4.
Parameters
| Attributes | Value |
|---|---|
| Qualification Level | Automotive |
| Product Type | SoC |
| Processor Supplier | Renesas |
| Processor Name | R-CAR S4, V4H, V4M, |
| Total step-down DC/DC converter channels (#) | 11 |
| Step-up DC/DC converter Channels (#) | 1 |
| Input Voltage (Min) (V) | 2.7 |
| Input Voltage (Max) (V) | 5.5 |
| Bus Voltage (Max) (V) | 5.5 |
| Output Current Max (A) | 12 |
| Outputs (#) | 11 |
| Function | 11-ch PMIC |
| Comm. Interface | I2C & SPI |
| Battery Interface | No |
| GPIOs (#) | 5 |
| Integrated Battery Charger | No |
| Switching Frequency (MHz) | 2 - 2 |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| LFBGA | 4.5 x 7.5 x 1.07 | 66 | 0.7 |
Application Block Diagrams
 | Humanoid System Compute (Brain) Ultra-high AI compute brain coordinating real-time perception, control, and human-like movement. |
 | Communication Gateway & Integrated DVR/DMS System Integrated automotive gateway merging CoGW with DVR/DMS video processing. |
 | Automotive Communication Gateway Platform Integrated automotive gateway platform with R-Car S4 SoC, multi-network support, and optimized power management. |
Additional Applications
- Vehicle Computers
- Communication Gateway
- Domain Server
- Application Server