September 2016

DocID029130 Rev 2

1/4

For further information contact your local STMicroelectronics sales

office

www.st.com

STEVAL-ISA178V1

5 V / 200 mA high voltage buck-converter based on VIPer01

Data brief

Features



Five-star energy efficiency for operation



Meets ErP Lot 6 Tier 2 requirements for

household and office equipment



Compliant with the 10% load efficiency and

4-point average active-mode efficiency

targets prescribed by the European CoC ver.

5 Tier 2



Meets IEC55022 Class B conducted EMI

even with reduced EMI filter, thanks to the

frequency jittering feature



VIPer01 800V avalanche rugged technology

and embedded protections ensure enhanced

system reliability



RoHS compliant

Applications



Topology: buck



Input power consumption:



load condition



mW load





Output voltage: 5 V



Output current: 200 mA



Switching frequency: 30 kHz with jittering

(±7%)



Max amb. temp: 60 °C



Automatic restart protections: OLP, short

circuit, VCC clamp, max duty cycle counter,

thermal shutdown



Pulse-skip protection to prevent the flux-

runaway



Dimensions: 29 mm x 30 mm

Description

STEVAL-ISA178V1 is a compact and efficient

solution for AC-DC power supplies, and performs

voltage conversion from the main line down to 5

V output voltage.

The low current consumption of the VIPer01 and

its low VCC voltage allows extremely low input

power consumption under no load and light load

conditions.

The pulse skip feature embedded in our IC

reduces the peak current typically present during

the startup phase of a buck converter.