STEVAL-ISA070V1 3 A / 1.5 MHz step-down synchronous switching regulator based... the ST1S31 in SO-8 package Features

STEVAL-ISA070V1 3 A / 1.5 MHz step-down synchronous switching regulator based... the ST1S31 in SO-8 package Features
STEVAL-ISA070V1
3 A / 1.5 MHz step-down synchronous switching regulator based on
the ST1S31 in SO-8 package
Data brief
Features
■
4 A peak 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 mΩ 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-ISA070V1 demonstration board is
based on the ST1S31, 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 023067 Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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Schematic diagram
1
STEVAL-ISA070V1
Schematic diagram
Figure 1.
Schematic diagram
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Doc ID 023067 Rev 1
STEVAL-ISA070V1
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Revision history
Revision history
Table 1.
Document revision history
Date
Revision
11-Apr-2012
1
Changes
Initial release.
Doc ID 023067 Rev 1
3/4
STEVAL-ISA070V1
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