STEVAL-ISA079V1 Datasheet, PDF (1/4 Pages) STMicroelectronics – Extremely low quiescent current

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.
March 2012
Doc ID 022890 Rev 1
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.
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