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5V/0.8W wide range 30kHz buck converter based on VIPer06XS

STEVAL-ISA114V1

Overview

The STEVAL-ISA114V1 evaluation board describes a 5 V- 0.15 A power supply set in buck topology with the VIPer06XS, a new off-line high voltage converter by STMicroelectronics, specifically developed for non-isolated SMPS.

The features of the device include an 800 V avalanche rugged power section, PWM operation at 30 kHz with frequency jittering for lower EMI, limiting current with adjustable set point, on-board soft-start, safe auto-restart after a fault condition and low standby power consumption.
The available protection includes a thermal shutdown with hysteresis, delayed overload protection and open loop failure protection. All protection is auto-restart mode.

Main features

Universal input mains range:
- input voltage: 90 - 264 V_AC
- frequency: 45 - 65 Hz
Single-output voltage:
- 5 V @ 0.16 A continuous operation
Fully protected against faults (overload, feedback disconnection and overheating)
EMI: according to EN55022-Class-B
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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Update:2025-05-29 17:41:26

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