念慈菴

High-efficiency monolithic synchronous buck regulator based on L6928D

STEVAL-ISA079V1

Overview

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.

Main 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

Design Files

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