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STMicroelectronics Fully Integrated Power Management IC (PMIC)

Featuring 14 Output Rails PMIC, BOOST with Bypass, LDO for Memory Power Supply

The STMicroelectronics STPMIC1 is a fully integrated power management IC designed for products based on high integrated application processor designs requiring low power and high efficiency.

The STPMIC1 integrates advanced low power features controlled by a host processor via I²C and IO interface.

The STMicroelectronics STPMIC1 regulators are designed to supply power to the application processor as well as to the external system peripherals such as: DDR, Flash memories and other system devices.

The boost converter can power up to 3 USB ports (two 500 mA host USB and one 100 mA USB OTG). The STPMIC1 features an advanced bypass architecture allows the smooth regulation of VBUS for USB ports from a battery as well as low-cost consumer 5 V AC-DC adapters.

Four buck SMPS are optimized to provide an excellent transient response and an output voltage precision for a wide range of operating conditions, high full range efficiency (η up to 90%) by implementing a low power mode with a smooth transition from PFM to PWM and also an advanced PWM synchronization technique with an integrated PLL for a better noise (EMI performance).

STPMIC1 Features

  • Input voltage range from 2.8 V to 5.5 V
  • 4 adjustable general purpose LDOs
  • 1 LDO for DDR3 termination (sink-source), bypass mode for low power DDR or as general purpose LDO
  • 1 LDO for USB PHY supply with automatic power source detection
  • 1 reference voltage LDO for DDR memory
  • 4 adjustable adaptive constant on-time (COT) buck SMPS converters
  • 5.2 V / 1.1 A boost SMPS with bypass mode for 5 V input or battery input
  • 1 power switch 500 mA USB OTG compliant
  • 1 power switch 500 mA/1000 mA general purpose
  • User programmable non-volatile memory (NVM), enabling scalability to support a wide range of applications
  • I²C and digital IO control interface
  • WFQFN 44L (5x6x0.8)

STPMIC1 Applications

  • Industrial [e.g. Controls, POS, M2M interfaces, predictive maintenance]
  • Home Automation
  • Networking
  • Medical Monitoring
  • POS Terminals


STPMIC1 Block Diagram

STMicroelectronics – STPMIC1 Black Diagram


STPMIC1 Typical Application Schematic

STMicroelectronics – STPMIC1 Typical Application Schematic


STPMIC1 IC vs. Discrete Solutions Optimized Features

STMicroelectronics – STPMIC1 IC vs. Discrete Solutions Optimized Features

Evaluation Board


Platform for high integration STPMIC1x power management IC for microprocessor units

The STEVAL-PMIC1K1 is a power management IC evaluation board for the highly integrated STPMIC1, which is designed to manage the power requirements of the core, memory and interfaces of the STM32MP1 series MPU and other application microprocessors.

STMicroelectronics – STEVAL-PMIC1K1 Evaluation board The package includes a USB dongle which provides I²C access to the configuration registers of the STPMIC1 device, where voltage settings, power sequences, protection thresholds and other parameters can be set. The evaluation board includes header connectors for external access to the embedded regulators and switches in the device, as well as internal routing via jumpers to satisfy any physical configuration requirements. The passive components on the board are chosen for optimal performance across most use conditions, and three push buttons and digital I/Os allow triggering of the digital controls of the device.


  • Single device MPU supply solution embedding:
    • 5 LDOs
    • 5 high efficiency DC/DC converters
    • 1 termination for DDR memory
    • 1 voltage reference for DDR memory
    • 2 power switches
  • Programmable voltage outputs and protection parameters
  • Programmable power-on and power-off sequences
  • Single supply input from 3.1 V to 5.5 V
  • I²C control and non-volatile memory configuration storage

STSW-PMIC1GUI — Configuration GUI for STEVAL-PMIC1K1

The STSW-PMIC1GUI graphical user interface is used to monitor and configure the main parameters of the STPMIC1 power management IC (PMIC) embedded on the STEVAL-PMIC1K1 kit evaluation board. It also provides an easy and intuitive means to set up the NVM parameters of the PMIC.

STMicroelectronics – STSW-PMIC1GUI Configuration GUI for STEVAL-PMIC1K1 An interface board supplied with the STEVAL-PMIC1K1 kit is used to establish communication between the STPMIC1 device on the evaluation board and a PC via USB. The GUI is compatible with Windows 7, 8 and 10. No specific third-party software is needed.


  • Configuration of STPMIC1 parameters
  • Monitoring of STPMIC1 parameters
  • Access to NVM parameters
  • Access to Fault and Event history