产品概述
描述
The STEVAL-PMIC25V1 is a power management IC evaluation board for the highly integrated STPMIC25, which is designed to manage the power requirements of the core, memory and interfaces of the STM32MP2x series MPU and other application microprocessors.
The kit includes a USB dongle, which provides I²C access to the configuration registers of the STPMIC25 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.
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所有功能
- Input voltage range from 2.8 V to 5.5 V
- 7 buck converters with adaptive constant on-time (COT) topology:
- 2 MHz switching frequency
- Selectable forced PWM
- Spread spectrum function
- Phase shift synchronization
- 6 adjustable general purpose LDOs
- 1 LDO configurable as:
- Sink-source mode for DDR4 termination
- Bypass mode for lpDDR
- Adjustable output (normal mode) for general purpose use
- 1 LDO for USB PHY supply with automatic power source detection
- 1 reference voltage LDO for DDR memory
- User programmable nonvolatile memory (NVM), enabling scalability to support a wide range of applications
- Immediate output alternate settings toggle by dedicated power control pins
- Programmable output voltages turn ON/OFF sequences
- I²C and digital IO control interface
- Advanced customizable safety management
- Typical applications:
- Power management for embedded microprocessor units, wearable, and IoT, portable devices, man-machine interfaces, smart home, power management unit companion chip of the STM32MP2x MPU
