Datasheet

Data brief
For further information contact your local STMicroelectronics sales office.
October 2011 Doc ID 022262 Rev 2 1/4
4
STEVAL-ISA079V2
High-efficiency monolithic synchronous step-down regulator based
on the L6928
Features
■ 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
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: Previous part number EVAL6928Q1
STEVAL-ISA079V2
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