STEVAL-ISA069V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – 3 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S31 in DFN 3x3 package

STEVAL-ISA069V1
3 A / 1.5 MHz step-down synchronous switching regulator based on
the ST1S31 in DFN 3x3 package
Data brief
Features
■ 4 A peak output current
■ From 2.8 V to 5.5 V input voltage
■ Output voltage adjustable from 0.8 V
■ 1.5 MHz switching frequency
■ Internal soft-start and enable
■ Integrated 60 mΩ and 45 mΩ power MOSFETs
■ All ceramic capacitors
■ Power Good (POR)
■ Cycle-by-cycle current limiting
■ Current foldback short-circuit protection
■ RoHS compliant
Description
The STEVAL-ISA069V1 demonstration board is
based on the ST1S31, which is an internally
compensated 1.5 MHz fixed-frequency PWM
synchronous step-down regulator. This device
operates from 2.8 V to 5.5 V input, while it
regulates an output voltage as low as 0.8 V and
up to Vin.
The peak current mode control with internal
compensation delivers a very compact solution
with a minimum component count.
April 2012
Doc ID 022882 Rev 1
For further information contact your local STMicroelectronics sales office.
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