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STEVAL-ISA079V1 Folha de dados(PDF) 1 Page - STMicroelectronics

Nome de Peças STEVAL-ISA079V1
Descrição Electrónicos  Extremely low quiescent current
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STEVAL-ISA079V1 Folha de dados(HTML) 1 Page - STMicroelectronics

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This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice. For further information contact your local STMicroelectronics sales office.
March 2012
Doc ID 022890 Rev 1
1/4
4
STEVAL-ISA079V1
High efficiency monolithic synchronous step-down regulator based
on the L6928D
Data brief
preliminary data
Features
2 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
Description
The STEVAL-ISA079V1 demonstration board is
based on the DC-DC monolithic regulator
L6928D, specifically designed to provide
extremely high efficiency.
The L6928D supply voltage can be as low as 2 V,
allowing it to be used in single Li-Ion cell supplied
applications.
Output voltage can be selected by an external
divider down to 0.6 V.
Duty cycle can saturate to 100%, allowing low
dropout operation.
The previous part number for this demonstration
board was EVAL6928D.
www.st.com


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