RAA271082A4HNP#MA0

RAA271082A4HNP#MA0 is an automotive PMIC with three synchronous buck regulators and one low dropout linear regulator. It 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. It was designed using an ASIL-D ISO-26262 development process and is intended to meet ASIL-B device metrics. It 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. Application includes driver monitoring cameras, rear and surround view HD automotive cameras, microcontroller PMIC for battery management systems, microcontroller PMIC for zone and domain controllers, microcontroller PMIC for gateway unit.

• 24 lead SCQFN package description, AEC-Q100 qualified, grade 1 -40°C to +125°C (TJ = 150°C)
• VIN operating range from 4 to 42V, start range from 4.5 to 42V, dual EN pins
• Fixed switching frequency 2.2MHz with optional pseudo-random spread spectrum
• OTP UV/OV thresholds ±4%, ±6%, ±8%, ±12%, OTP power up/down sequence and delay
• Optional output discharge on Buck2, Buck3, and LDO4, configurable GPIO pin
• Input voltage UVLO, output OV/UV, overcurrent protection on internal and output LDOs
• Built-in self test (BIST) at power up, dual bandgap/reference chains
• Independent UV/OV sense path for buck1 output, configurable window watchdog timer (WWDT)
• Continuous CRC checking of OTP shadow registers, CRC protected I²C communication
• Configurable fault manager, LDO4 output range from 2.7V to 3.4V, up to 300mA