STEVAL-ISA063V2 Datasheet, PDF (1/4 Pages) STMicroelectronics – Power save mode at light load

STEVAL-ISA063V2
1 A, high efficiency single inductor DC-DC converter
based on the STBB1-APUR
Data brief
Features
■ Buck-boost DC-DC converter
■ Operating input voltage range: 2.0 V to 5.5 V
■ 2% DC feedback voltage tolerance
■ Synchronous rectification
■ Shutdown function
■ 1.5 MHz switching frequency
■ Power save mode at light load
■ Typical efficiency: > 94%
■ 1 A output current capability
■ Shutdown current: < 1 µA
■ RoHS compliant
STEVAL-ISA063V2
Description
The STEVAL-ISA063V2 demonstration board
implements a typical buck-boost DC-DC
converter based on STMicroelectronics’ STBB1-
APUR high efficiency single inductor dual mode
buck-boost DC-DC converter.
The device is fixed frequency and capable of
providing output voltages ranging from 1.2 V to
5.5 V and input voltages from 2.0 V to 5.5 V.
The STBB1-APUR can operate with input
voltages higher than, equal to, or lower than the
output voltage, rendering the product suitable for
single lithium-ion (Li-Ion), multicell alkaline or
NiMH applications where the output voltage is
within the battery voltage range.
The integrated low-R_DSon N-channel and P-
channel MOSFET switches contribute to its high
efficiency.
December 2011
Doc ID 022622 Rev 1
For further information contact your local STMicroelectronics sales office.
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www.st.com
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