Data brief

For further information contact your local STMicroelectronics sales office.

December 2011

Doc ID 022615 Rev 1

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STEVAL-ISA091V1

2 A step-down switching power supply demonstration board

based on the L7980 (QFN)

Features

up to 1 MHz

Description

The STEVAL-ISA091V1 is step-down switching

power supply based on STMicroelectronics’

L7980 switching regulator in a QFN package.

The L7980 features an embedded power

MOSFET and is capable of delivering up to 2 A of

current to the load, depending on the application

conditions.

The input voltage can range from 4.5 V to 28 V,

while the output voltage can be set from 0.6 V to

Requiring a minimum number of external

components, the device includes an internal 250

kHz switching frequency oscillator that can be

externally adjusted up to 1 MHz.

STEVAL-ISA091V1

www.st.com