STEVAL-ISA028V1
Single phase 20 A step-down converter evaluation board
based on the L6727
Data Brief
Features
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BOM optimized for 12 V input / 1.25 V output @
20 A
High flexibility to host wide range designs
Customizable output voltage
L6726A / L6727 compatibility
Controller input voltage (V
CC
) range from 5 V to
12 V
Conversion input voltage (V
IN
) up to 13.2 V
DPAK / SO-8 / PowerSO-8 / PowerFLAT
MOSFET compatibility
Multi-footprint for input and output capacitors
Through-hole / SMD inductor compatibility
4-layer PCB
Description
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This evaluation board demonstrates the key
features of STMicroelectronics’ L6727, a new
powerful new buck controller. The L6727 makes
the design of complete step-down voltage
regulators simple and cost effective. It provides a
full solution by integrating a 0.8 V reference,
control logic and protection, and NMOS drivers in
an 8-pin package. The L6727 evaluation board
implements a step-down DC/DC converter in a
four-layer PCB and demonstrates 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. Airflow
must be applied with current higher than 18 A
(@V
IN
= 5 V). The switching frequency is 300 kHz.
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STEVAL-ISA028V1
December 2007
Rev 2
1/4
www.st.com
4
For further information contact your local STMicroelectronics sales office
STEVAL-ISA028V1
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