STEVAL-ISA094V1 STMICROELECTRONICS [STMicroelectronics], STEVAL-ISA094V1 Datasheet

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STEVAL-ISA094V1

Manufacturer Part Number
STEVAL-ISA094V1
Description
3 A step-down switching power supply demonstration board based on the L7981 (HSOP8)
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.STEVAL-ISA094V1.pdf (4 pages)

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Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
STEVAL-ISA094V1
Manufacturer:
STMicroelectronics
Quantity:
1
Features
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Description
The STEVAL-ISA094V1 is a step-down switching
power supply based on STMicroelectronics’
L7981 switching regulator in an HSOP8 package.
The L7981 features an embedded power
MOSFET and is capable of delivering up to 3 A of
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 from 0.6 V to
V
Requiring a minimum number of external
components, the device includes an internal 250
kHz switching frequency oscillator that can be
externally adjusted up to 1 MHz.
December 2011
For further information contact your local STMicroelectronics sales office.
IN
3 A DC output current
4.5 V to 28 V input voltage
Output voltage 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
.
3 A step-down switching power supply demonstration board
Doc ID 022621 Rev 1
based on the L7981 (HSOP8)
STEVAL-ISA094V1
STEVAL-ISA094V1
www.st.com
Data brief
1/4
4

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STEVAL-ISA094V1 Summary of contents

Page 1

... Overcurrent and thermal protection ■ RoHS compliant Description The STEVAL-ISA094V1 is a step-down switching power supply based on STMicroelectronics’ L7981 switching regulator in an HSOP8 package. The L7981 features an embedded power MOSFET and is capable of delivering current to the load, depending on the application conditions ...

Page 2

... Schematic diagram 1 Schematic diagram Figure 1. STEVAL-ISA094V1 circuit schematic 2/4 Doc ID 022621 Rev 1 STEVAL-ISA094V1 ...

Page 3

... STEVAL-ISA094V1 2 Revision history Table 1. Document revision history Date 23-Dec-2011 Revision 1 Initial release. Doc ID 022621 Rev 1 Revision history Changes 3/4 ...

Page 4

... Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 4/4 Please Read Carefully: © 2011 STMicroelectronics - All rights reserved STMicroelectronics group of companies www.st.com Doc ID 022621 Rev 1 STEVAL-ISA094V1 ...

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