STMicroelectronics STEVAL-1PS03A Converter Evaluation Board

STMicroelectronics STEVAL-1PS03A Converter Evaluation Board is for a smart converter design able to deliver up to 400mA output current from a 1.8V to 5.5V input, with a dynamically adjustable 1.6V to 3.3V output voltage. The board features the ST1PS03AQTR nano-quiescent miniaturized synchronous step-down converter, which implements enhanced peak current control (PCC) and advanced design circuitry to minimize quiescent current. The device embeds a controlled load switch to supply a subsystem with a VIN_AUX voltage rail. The board demonstrates how highly efficient conversion can be achieved with just the ST1PS03AQTR, a 2.2μH inductor, and two small capacitors.

The board highlights key application benefits made possible by the STMicroelectronics ST1PS03AQTR, including high efficiency and small PCB size and thickness. The board is ideal for power conversion solutions in wearable applications and fitness accessories, personal tracking monitors, smartwatches, and sports bands. It is also great for energy harvesting, wireless sensors, industrial sensors, portable low power devices, single-cell Li-Ion battery applications, and BLUETOOTH® low energy and Zigbee applications. The device used on this board is supplied in the thin TQFN12 (2.0mm x 1.7mm) package.

Features

  • 1.8V to 5.5V input operating range
  • Up to 400mA output current capability
  • Tiny external components: L = 2.2µH (typ.)
  • Dynamically selectable output voltages from 1.6V to 3.3V
  • Output voltage Power Good
  • Independent load switch (AUX control input)
  • WEEE and RoHS compliant (hardware only)

Resources

  • Datasheet
  • User Manual

Board Layout

Mechanical Drawing - STMicroelectronics STEVAL-1PS03A Converter Evaluation Board

STMicroelectronics STEVAL-1PS03A Converter Evaluation Board