Automotive Power Management ICs

STMicroelectronics offers a comprehensive portfolio of automotive-qualified Power Management ICs (PMICs) designed to streamline component count, maximize space efficiency, and accelerate development. These solutions enable energy-saving, high-power-density, and lower-standby-power design solutions for automotive applications.

Smart and Safety-Oriented PMICs

ST's all-in-one PMICs integrate drivers, ADCs, switching and linear regulators, as well as monitoring, sequencing, and essential safety functions, ensuring robust performance. These multi-channel power management ICs allow flexible and configurable setups for multiple power supply schemes required for camera, radar and ADAS applications, as well as MCUs, ECUs, OBCs, USB ports and infotainment systems.

Key Features

DC/DC converters/controllers
Linear regulators
Buck and buck-boost controllers
Battery compatibility eliminates the need for a dedicated pre-regulator
Reverse current protection
Input and output monitoring for system control
Independent enable pins for power-up sequence customization
Internal memory for programming reduces external component use
Window watchdog/reset for advanced MCU support
High switching frequency for reduced PCB size
I2C/SPI control bus or hardware controls
Very low quiescent & standby currents for reduced energy consumption
Thermal protection
Load dump protection
Integrated compensation function optimizes BOM costs
Functional safety (ASIL support)

Key Applications

ADAS (camera, radar, and domain controller)
ECUs
Infotainment systems (TCU, instrument clusters, and cockpit)
Zonal architecture
USB hubs and chargers

PMICs Product Portfolio in Application

The following diagram illustrates the application of ST's PMICs:

Main battery (12 V or 24 V):

STPM801: Hot swap + Ideal diode
STPM802A: Buck boost controller

Backup battery (12 V or 24 V):

STPM801: Hot swap + Ideal diode

12 V battery:

L5965, STPM066S, SPSA068

LOAD: ECU, MCU, memories

SHB: STPM098C Multiphase controller (5 V)

The entire portfolio is designed to fulfill functional safety requirements as defined by Automotive Safety Integrity Level (ASIL).

Smart Power Solutions Targeting Functional Safety up to ASIL-D

ST offers a complete portfolio of PMICs for automotive systems designed to support functional safety requirements up to ASIL-D, including ADAS, cockpit, and zone controllers. The STPM801 protects systems against reverse polarity up to 65 V and allows the use of a backup battery. A family of battery-compatible PMICs, including the L5965, SPSA068, and STPM066S, provide the necessary rails to supply MCUs and processors found in cameras, radar sensors, OBCs, central and zonal ECUs. Furthermore, the SPI bus, internal memory, and monitoring functions enable the construction of a complete and autonomous power management system, reducing the number of external components required. The STPM098C digital multiphase controller can supply the most powerful processors and GPUs with the hundreds of amps required for autonomous driving with very high efficiency. The STPM802A buck-boost controller operates as a pre-regulator unit, useful for ensuring power distribution on central and zonal architectures with large current demands.

PMIC Overview

Pre-regulator and Protection Devices

STPM801: Hot Swap - Ideal Diode Controller
STPM802A: High Power Buck-Boost Controller

Battery-compatible, Multiple-rail PMICs

L5965: 7 Rails for ADAS
STPM066S: 4 Rails for ADAS
SPSA068: For Single Supply Microcontrollers
L9396: 6 Rails with Sensor Interface
L9001: Dual Switching and One Linear Async
L5963: Dual Switching and One Linear Async
L9758: Multiple output

High-performance Devices for Power Distribution

STPM098C: Multiphase Controller, 8 Phases 2 Loops

Battery line compatibility: 12 V / 24 V

Post Regulation

Device Summary

Part Number	Package	Function	VIN (V)	VOUT (V)	IOUT (A)	Frequency	Topology	Other features
L5965	VQFPN-48	Buck1, Buck2, Buck3/Buck4, Boost, LDO/Vref	4 to 32, 3 to 5.5, 3 to 5.5, 3 to 5.5	4 to 32, 3 to 5.5, 3 to 5.5, 3 to 5.5	1.5/3, 1.5/1, 0.3/0.2, 0.6/0.3/0.02	400 kHz, 2.4 MHz, 2.4 MHz, 2.4 MHz	Monolithic, synchronous, current mode, internal power switches	OTP programming, SPI interface, diagnostics, voltage supervisors, FuSa support
STPM066S	VQFPN-48	Buck, Boost, LDO/Vref	4 to 32, 3 to 5.5, 3 to 5.5	4 to 32, 3 to 5.5, 3 to 5.5	1.5/3, 0.3/0.2, 0.6/0.3/0.02	2.4 MHz, 2.4 MHz, 2.4 MHz	Monolithic, synchronous, current mode, internal power switches	OTP programming, SPI interface, diagnostics, voltage supervisors, FuSa support
L9396	TQFP-64	Buck1, Buck2/LDO1, LDO2/LD03, Vref	4.5 to 19, 6 to 19, 6 to 19, 3.3	8.5, 6.5/7.2, 5 to 0.8, 3.3/5	0.3, 1, 0.5/1, 0.02	2 MHz, 465 kHz, 465 kHz, 465 kHz	Monolithic, asynchronous	SPI interface, WSS/tracking regulator, spread spectrum, diagnostics, 2xHS pre-drivers, WD & reset, FuSa support
L9001	PowerSSO-24	Buck2/LD01, Vref	5.5 to 18, 5.5 to 18	5 to 0.8, 3.3/5	0.3/1, 0.02	465 kHz, 465 kHz	Monolithic, asynchronous, internal power switches	Voltage supervisors, diagnostics, WD & reset
STPM098C	VFQFPN-48	Digital multiphase controller	5.5 to 18	3.3/5	0.1	200 kHz to 1.5 MHz	Monolithic, dual-loop digital multi-phase buck controller	Dual loop, 8x PWM outputs, PMBus, Dynamic phase shedding, FuSa support
L5963	PowerSSO36	Buck1/Buck2, LDO/ST-BY1	3.5 to 26, 3.5 to 26	1 to Vin, 0.25	2.5/3, 0.25	2 MHz, 0.25	Monolithic, synchronous, voltage mode, internal power switches	Power good monitoring, high-side driver
STPM801	VFQFPN-32	Hot swap and ideal diode	4 to 65	4 to 65	-	-	Monolithic, power switch controller, ideal diode	Reverse current protection, in/out diagnostics, dual battery & FuSa support
STPM802A	VFQFPN-32	Buck-boost controller	4 to 65	3.3 to 14	Up to 250 W	From 177 to 500 kHz	Non-inverting synchronous current controlled Buck-Boost, with 4-switch single inductor architecture	Discontinuous conduction mode, configurable parameters, stand-by, FuSa support
SPSA068	QFN32L	Buck, Vref	4 to 19, 5/3.3/1.2	5/3.3/1.2, 0.5/1	0.4/2.4 MHz, 0.02	0.4/2.4 MHz	Monolithic, synchronous, current mode, internal power switches	Low power mode, output voltage adjustable, WD & reset, FuSa support

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Order code: BR2507AUPWRMGMT

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