STEVAL-ISA092V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – 2 A step-down switching demonstration board based on the L7980

STEVAL-ISA092V1
2 A step-down
switching demonstration board based on the L7980
Data brief
Features
■ 2 A DC output current
■ 4.5 V to 28 V input voltage
■ Output voltage: 3.3 V (adjustable from 0.6 V)
■ 250 kHz switching frequency, programmable
up to 1 MHz
■ Internal soft-start and enable
■ Low dropout operation: 100% duty cycle
■ Voltage feed-forward
■ Zero load current operation
■ Overcurrent and thermal protection
■ RoHS compliant
STEVAL-ISA092V1
Description
The STEVAL-ISA092V1 is a step-down switching
power supply based on the L7980 in a QFN
package.
The L7980 is a step-down switching regulator with
embedded Power MOSFET, so it is able to deliver
up to 2 A 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 starting from
0.6 V to V_IN.
Requiring a minimum set of external components,
the device includes an internal 250 kHz switching
frequency oscillator that can be externally
adjusted up to 1 MHz.
December 2011
Doc ID 022620 Rev 1
For further information contact your local STMicroelectronics sales office.
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