STMicroelectronics STEVAL-PMIC1K1

Overview

STEVAL-PMIC1K1 from STMicroelectronics is an evaluation board for the STPMIC1 power management IC, designed to deliver complete power sequencing and regulation for STM32MP1-series microprocessor units. It integrates 14 output rails-including 4 adjustable COT buck converters, 1 boost converter with bypass, 6 LDOs, DDR termination and reference, and 2 power switches-with I²C programmability, non-volatile configuration storage, and single 3.1–5.5 V input operation.

For engineers reviewing the STEVAL-PMIC1K1 datasheet, STEVAL-PMIC1K1 pinout, STEVAL-PMIC1K1 application, or STEVAL-PMIC1K1 equivalent, this board enables rapid validation of STPMIC1 voltage sequencing, protection threshold tuning, DDR memory power delivery, and MPU core/mem/interface rail coordination in embedded Linux systems.

Technical Context

The STEVAL-PMIC1K1 implements a hardware-configurable test platform for the STPMIC1 PMIC, supporting full register access via USB-I²C dongle (STSW-PMIC1GUI). It routes all 14 regulated outputs-including VBUCK_1 through VBUCK_4, VLDO_1 through VLDO_6, VREF, VOTG, and VSW-to accessible headers and jumpers for flexible interconnection.

Board-level features include three push buttons for PONKEY, RESET, and WAKEUP control; digital I/Os for INT_N, PWRCTRL, and RST_N monitoring; and optimized passive selection (e.g., 22 µF–220 µF ceramic and tantalum capacitors, 1.0 µH inductors) validated across industrial temperature and load transients per DB4023.

Key Specifications

Availability

STEVAL-PMIC1K1 is available at Aetrix Electronics and suitable for STM32MP1-based embedded Linux development, industrial HMI design, and IoT gateway power architecture validation requiring stable component supply and repeatable lab evaluation.

Supply support for STEVAL-PMIC1K1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, MCU, power, sensor, and automotive ICs with emphasis on energy efficiency and system integration.

The STEVAL-PMIC1K1 belongs to ST's STPMICx evaluation platform family, developed specifically to accelerate power architecture bring-up for multi-rail MPU applications including edge AI processors and real-time industrial controllers.

FAQ

What software is required to configure the STPMIC1 via STEVAL-PMIC1K1?

The STSW-PMIC1GUI graphical user interface is mandatory and provided free by STMicroelectronics. It runs on Windows and communicates over I²C via the included USB dongle to read/write STPMIC1 registers-including voltage setpoints, sequencing delays, OVP/UVP thresholds, and enable/disable states-without firmware coding.

Does STEVAL-PMIC1K1 support DDR memory power delivery verification?

Yes. The board provides dedicated VREF (1.25 V ±1%) and termination (VTT = VREF/2) rails with matched impedance routing and low-noise decoupling (10 µF + 1 µF ceramics), enabling direct validation of DDR3/DDR4 memory power integrity and timing margins per JEDEC specifications.

Can the power-on sequence be customized for non-STM32MP1 processors?

Yes. All 14 rail enable timing, delay steps, and dependency logic are fully programmable via STSW-PMIC1GUI. Users can define custom sequences for other MPUs or SoCs-such as NXP i.MX8 or TI Sitara-by reassigning rail priorities and interlock conditions in the STPMIC1 configuration registers.

Are external components needed to operate STEVAL-PMIC1K1 out-of-the-box?

No. The board includes all necessary passives (capacitors, inductors, resistors), USB-I²C dongle, and jumper configurations for default STM32MP1 operation. Only a 3.1–5.5 V DC source (e.g., USB-C PD adapter or bench supply) and a Windows PC with STSW-PMIC1GUI installed are required for immediate use.