Functional Safety PMICs
Automotive Multi-Output Regulator with Buck/Buck-Boost Pre-Regulator, LDOs, and SPI
ARG81400
The ARG81400 is designed for automotive and industrial applications, integrating a buck/buck-boost pre-regulator, synchronous buck, multiple LDOs, a watchdog timer, and SPI control for comprehensive power management.
Product Details
Product Details
Top Features
- A2-SIL™ compliant—device features for safety critical systems
- Automotive AEC-Q100 qualified
- Wide input voltage range, 3.8 to 40 VIN operating range, 50 VIN maximum
- Buck or buck/boost pre-regulator (VREG)
- Adjustable 1.25 to 3.3 V synchronous buck for powering a MCU
- Four internal linear regulators with foldback short-circuit protection, 3.3 V (3V3) and three 5 V (V5CAN, V5A, and V5B)
- One internal 5 V linear regulator (V5P) with foldback short-circuit and short-to-battery protection
- Pin-to-pin and pin-to-ground tolerant at every pin
- Power-on reset signal indicating a fault on the synchronous buck, 3V3 or V5A regulator outputs (NPOR)
- Window watchdog timer with fail-safe features
- Control and diagnostic reporting through a serial peripheral interface (SPI)
- Safety signal (POE) can disable a separate function (e.g., Motor Driver) due to a Watchdog Failure
- Frequency dithering and controlled slew rate helps reduce EMI/EMC
- OV and UV protection for all output rails
