STMicroelectronics Power Management Development Kit 5 V/0.6 A Buck Converter Evaluation Board VIPERP319X

The STMicroelectronics STEVAL-VP319X1B is a Power Management Development Kit featuring a 5 V/0.6 A buck converter evaluation board. It is designed for non-isolated auxiliary power supplies of up to 20 W and targets general purpose applications requiring efficient offline power conversion.

Operating with a wide input voltage range from 85 to 265 VAC, the evaluation board can be extended to operate down to 40 VAC by increasing the size of the input bulk capacitors. The core component of the design is the VIPERP319X, a member of the VIPER Plus family, which integrates an 800 V avalanche-rugged power MOSFET and supports PWM current-mode control with a fixed switching frequency of 30 kHz and jittering to meet electromagnetic disturbance emission standards.

This board delivers a stable 5 V output at 0.6 A (3 W) with high efficiency, achieving over 69.7% efficiency at full load and maintaining greater than 60.58% efficiency at 10% load. It also features a burst mode for efficient light load management reducing the no-load power consumption to less than 16 mW at 230 VAC.

Compliance with RoHS and IEC55022 Class B standards ensures the board meets industry safety and electromagnetic interference requirements. The compact design with minimal bill of materials makes it suitable for embedded system developers, engineers, and electronics designers focusing on power management solutions.

Operates from 85 to 265 VAC input voltage with extended range capability. Delivers 5 V output voltage at 0.6 A for non-isolated auxiliary power applications. High efficiency with over 69.7% at full load and 60.58% at light load.

Incorporates VIPERP319X with 800 V avalanche-rugged MOSFET and PWM control. Fixed 30 kHz switching frequency with jittering for EMI compliance. Burst mode for low standby consumption (.