September 2016

DocID025045 Rev 2

1/8

For further information contact your local STMicroelectronics sales

office

www.st.com

STEVAL-ISA114V1

5 V, 160 mA non-

isolated buck converter using VIPer™ Plus -

VIPER06XS

Data brief

Features



Universal input mains range:





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

Description

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.