STEVAL-ISA079V2 STMICROELECTRONICS [STMicroelectronics], STEVAL-ISA079V2 Datasheet

STEVAL-ISA079V2

Manufacturer Part Number

STEVAL-ISA079V2

Description

High-efficiency monolithic synchronous step-down regulator based on the L6928

Manufacturer

STMICROELECTRONICS [STMicroelectronics]

Datasheet

1.STEVAL-ISA079V2.pdf (4 pages)

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Bonase Electronics (HK) Co., Limited

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Features

■

Description

The STEVAL-ISA079V2 demonstration board is

based on the L6928 DC-DC monolithic regulator,

specifically designed to provide extremely high

efficiency.

The L6928 supply voltage can be as low as 2.0 V,

allowing its use in single Li-Ion cell supplied

applications.

The output voltage can be selected by an external

divider down to 0.6 V. The duty cycle can saturate

to 100%, allowing low dropout operation.

Note:

October 2011

For further information contact your local STMicroelectronics sales office.

High-efficiency monolithic synchronous step-down regulator based

2.0 V to 5.5 V battery input range

High efficiency: up to 95%

Extremely low quiescent current

1 µA max shutdown supply current

800 mA max output current

Adjustable output voltage from 0.6 V

Low dropout operation: up to 100% duty cycle

± 1% output voltage accuracy

1.4 MHz switching frequency

Externally synchronizable from 1 MHz to 2

MHz

Short-circuit protection

RoHS compliant

Previous part number EVAL6928Q1

Doc ID 022262 Rev 2

STEVAL-ISA079V2

on the L6928

www.st.com

Data brief

1/4

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STEVAL-ISA079V2 Summary of contents

Page 1

... Externally synchronizable from 1 MHz to 2 MHz ■ Short-circuit protection ■ RoHS compliant Description The STEVAL-ISA079V2 demonstration board is based on the L6928 DC-DC monolithic regulator, specifically designed to provide extremely high efficiency. The L6928 supply voltage can be as low as 2.0 V, allowing its use in single Li-Ion cell supplied applications. ...

Page 2

... Application diagram V = 10mF 6.3V 2 L6928 SYN 220pF R1 10K Doc ID 022262 Rev 2 STEVAL-ISA079V2 L 4. 7µ 200K 100K 10µ VFB R2 100K AM10172V1 ...

Page 3

... STEVAL-ISA079V2 2 Revision history Table 1. Document revision history Date 23-Sep-2011 06-Oct-2011 Revision 1 Initial release. 2 Minor text changes on coverpage. Doc ID 022262 Rev 2 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 022262 Rev 2 STEVAL-ISA079V2 ...

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