EmbeddedRelated.com
The 2026 Embedded Online Conference
STPMIC1

STPMIC1

STMicroelectronics
ST's system PMIC family for power sequencing and rail management in embedded platforms.
Active2,544 in stock

Overview

The STPMIC1 is a highly integrated power management IC designed to provide a complete power supply solution for high-performance application processors like the STM32MP1 series. It integrates four buck converters, a boost converter, and six LDOs into a single 44-pin WFQFN package to simplify complex multi-rail sequencing. The device features an I2C interface for dynamic voltage scaling and status monitoring, making it ideal for battery-powered or USB-powered embedded platforms.

Why Choose This Part

The STPMIC1 reduces PCB area by integrating 11 power rails and a power-path controller into a 5x6mm package. Its adaptive constant on-time (COT) buck converters ensure fast transient response, while the user-programmable non-volatile memory (NVM) allows for custom power-up sequences without external components.

Applications

Microprocessor Power Supply
Provides the specific power sequencing and multi-rail requirements for STM32MP1 and other ARM Cortex-A based MPUs.
Smart Home Gateways
Manages power for Linux-based IoT hubs requiring efficient multi-rail conversion and compact footprints.
Portable Medical Devices
Utilizes integrated LDOs and high-efficiency buck converters to extend battery life in handheld diagnostic tools.
Human-Machine Interface (HMI)
Powers large displays and touch controllers using the integrated boost converter and programmable sequencing.

Key Specifications

Applications General Purpose
Mounting Type Surface Mount
Package / Case 44-WFQFN Exposed Pad
Voltage - Supply 2.8V ~ 5.5V
Operating Temperature -40degC ~ 105degC
Supplier Device Package 44-WFQFN (5x6)

Getting Started

Evaluation can be performed using the STEVAL-STPMIC1 demonstration board, which allows for full access to the I2C registers. Software support is integrated into the STM32Cube ecosystem and mainstream Linux kernel drivers, simplifying the configuration of power-up sequences and dynamic voltage scaling.

The 2026 Embedded Online Conference