STMicroelectronics 4 A / 1.5 MHz step-down synchronous switching regulator based on the ST1S32 in DFN 4x4 package STEVAL STEVAL-ISA068V1 Data Sheet
Product codes
STEVAL-ISA068V1
For further information contact your local STMicroelectronics sales office.
June 2012
Doc ID 023047 Rev 1
1/4
4
STEVAL-ISA068V1
4 A / 1.5 MHz step-down synchronous switching regulator based on
the ST1S32 in DFN 4x4 package
Data brief
Features
■
4 A DC output current
■
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 m
Ω and 45 mΩ power MOSFETs
■
All ceramic capacitor
■
Power Good (POR)
■
Cycle-by-cycle current limiting
■
Current foldback short-circuit protection
■
RoHS compliant
Description
The STEVAL-ISA068V1 is based on the ST1S32,
an internally compensated 1.5 MHz fixed-
frequency PWM synchronous step-down
regulator.
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 V
while it regulates an output voltage as low as
0.8 V and up to V
in
.
The peak current mode control with internal
compensation delivers a very compact solution
with a minimum component count.
compensation delivers a very compact solution
with a minimum component count.