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5V/0.6A Buck Converter Based on VIPER319X

STEVAL-VP319X1B

Overview

The STEVAL-VP319X1B evaluation board implements a 5V/3W Buck converter developed for general purpose applications, operating from 85 to 265VAC.

If the size of the input bulk capacitors is increased, the evaluation board is able to supply the 3 W in extended range (40 – 265VAC).
The reference design is built around the new VIPERP319X, an offline high-voltage converter of the VIPERPlus family with 800 V avalanche-rugged Power MOSFET, PWM current-mode control, fixed 30 kHz switching frequency with jittering to satisfy electromagnetic disturbance standards, burst mode for light load management.
The main features of the evaluation board are: small size, minimal BOM, high efficiency, low stand-by consumption.

Main features

Universal input mains range: 85–265VAC
Frequency: 50-60 Hz
Output voltage: 5 V
Output current: 0.6 A
Input power consumption in no load condition:
4-point average active mode efficiency at full load: > 69.7% (compliant with European CoC ver. 5)
4-point average active mode efficiency at 10% full load: > 60.58% (compliant with European CoC ver. 5)
Meets IEC55022 Class B conducted EMI
RoHS compliant

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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