Data Brief

For further information contact your local STMicroelectronics sales office

December 2007

Rev 2

1/4

4

STEVAL-ISA027V1

Single phase step-down converter evaluation board

based on the L6726A

Features

20 A

12 V

MOSFET compatibility

Description

The purpose of this design is to demonstrate the

key features of STMicroelectronics' L6726A, a

new powerful new buck controller. The L6726A

allows the simple and cost effective design of

complete step-down voltage regulators. Indeed,

and provides a full solution by integrating an 0.8 V

reference, control logic and protection, and NMOS

drivers in an 8-pin package. Moreover, it features

a simple control loop with transconductance error

amplifier and soft-start programmability. The

L6726A evaluation board implements a step-down

DC-DC converter, in a four-layer PCB, and

demostrates the operation of the device in a

general purpose application. The input voltage

can range from 5 V to 12 V and the output voltage

is fixed at 1.25 V. The application can deliver an

output current up to 20 A, with a switching

frequency of 270 KHz.

STEVAL-ISA027V1

www.st.com