TPS65919 Automotive PMIC with 4 Buck Converters and 4 LDOs for Processor Power Management - VQFN-48 Package

This device is a highly integrated Power Management IC (PMIC) designed specifically for powering application processors in automotive electronic control units.
It integrates four configurable step-down switched-mode power supply (SMPS) regulators with output current capabilities up to 3.5A.
Two of the SMPS regulators can be combined in a dual-phase configuration to deliver up to 7A of output current for high-current processor cores.
The device also features four low-dropout (LDO) linear regulators, providing clean power for low-current or low-noise domains such as analog circuitry.
All regulators support programmable output voltages via SPI or I2C interfaces, enabling flexible system configuration and dynamic voltage scaling.
The integrated 12-bit sigma-delta general-purpose ADC monitors system health through internal and external voltage measurements.
Built-in protection mechanisms include short-circuit protection, thermal monitoring with warning and shutdown, and a watchdog timer for software lockup detection.
A programmable power sequencer controls power-up and power-down sequences through one-time programmable memory, ensuring proper system initialization.
The device supports low-power modes with only 20µA consumption in off mode and 90µA in sleep mode.
This makes it suitable for always-connected automotive applications that require efficient power management.
Housed in a compact 7mm x 7mm VQFN-48 package, it is ideal for space-constrained ECU designs.
This component is AEC-Q100 qualified and operates reliably from -40°C to +105°C ambient temperature.
It is widely used in automotive digital clusters, ADAS systems, and navigation systems requiring robust power management solutions.