STMICROELECTRONICS STEVAL

STEVAL-ISA088V1
1 A step-down switching regulator based on the L5970D
Data brief
Features
■
Max output current: 1 A
■
Output voltage from 1.235 V to 35 V
■
Operating input voltage from 4.4 V to 36 V
■
Internal switching frequency: 250 kHz
■
Synchronization pin for cases where a higher
frequency (up to 500 kHz) is required
■
Short-circuit protection
■
Inhibit pin
■
Thermal shutdown
■
RoHS compliant
STEVAL-ISA088V1
Description
The STEVAL-ISA088V1 demonstration board
provides a platform for evaluation of the L5970D,
a step-down monolithic power switching regulator
capable of delivering up to 1 A of current at output
voltages from 1.2 V to 35 V.
The input supply voltage of the STEVALISA088V1 can range from 4.4 V to 25 V based on
the rated voltage of the input capacitor, while the
output voltage is adjustable from 1.235 V to VCC.
April 2011
Doc ID 018688 Rev 1
For further information contact your local STMicroelectronics sales office.
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Schematic diagram
1
STEVAL-ISA088V1
Schematic diagram
Figure 1.
STEVAL-ISA088V1 circuit schematic
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Doc ID 018688 Rev 1
STEVAL-ISA088V1
2
Revision history
Revision history
Table 1.
Document revision history
Date
Revision
01-Apr-2011
1
Changes
Initial release.
Doc ID 018688 Rev 1
3/4
STEVAL-ISA088V1
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