STEVAL-ISA024V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – 20 A step-down DC-DC converter demonstration board with 3.3 Vout and 250 kHz switching frequency, based on the L6725

STEVAL-ISA024V1
20 A step-down DC-DC converter demonstration board with
3.3 V_out and 250 kHz switching frequency, based on the L6725
Data Brief
Features
■ Input voltage, V_IN: from 4.5 V to 14 V
■ Output voltage: 3.3 V
■ Selectable switching frequency: 250 kHz / 500
kHz
■ Over-voltage protection
■ Thermal shutdown
Description
This 4-layer PCB demonstration board is
designed as a step-down DC-DC converter to
demonstrate the operation of the L6725 device in
a general-purpose application. The input voltage
can range from 4.5 V to 14 V with an output
voltage of 3.3 V. The module can deliver an output
current in excess of 20 A. The L6725 device can
manage minimum ON times (T_ON) shorter than
100 ns. This makes possible conversions with
very low duty cycles and very high switching
frequencies. The switching frequency is initially
set at 250 kHz (controller free-running FSW), but
a switching frequency of 500 kHz can also be
selected.
STEVAL-ISA024V1
September 2008
Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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