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5V-360mA buck converter based on VIPer222XSTR

STEVAL-VP22201B

Overview

The STEVAL-VP22201B evaluation board features a 5 V - 1.8 W isolated flyback converter, developed for general purpose applications operating between 85 and 265 V _{AC .}

The reference design revolves around the VIPer222XSTR offline high-voltage converter from the VIPerPlus family, using 730 V power MOSFETs and PWM current mode control.
The main features of the evaluation board are small size, lowest bill of materials cost, low standby power consumption, and tight line and load regulation throughout the input and output ranges. Very low power consumption in the no-load state is guaranteed because burst mode operation reduces the average switching frequency and minimizes all frequency-related losses.
The VIPer222XSTR operates at a fixed frequency of 30 kHz with frequency jitter to ensure compliance with standards regarding electromagnetic interference.

Main features

Universal input power range: 85–265 V _AC
Frequency: 50-60Hz
Output voltage: 5 V
Output current: 360 mA
Extremely compact structure
Standby power consumption: AC
Compact line and load regulation over entire input and output range
Thanks to the frequency jitter characteristics, even if the size of the electromagnetic interference filter is reduced, it can still comply with the IEC55022 Class B conducted electromagnetic interference standard
Passed RoHS certification

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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Update:2025-05-08 10:20:45

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