DC / DC step-up converter controller
VISHAY
efficiency dc/dc converters in low input voltage systems.
Operation is guaranteed down to 2.7 V, with a minimum
start-up voltage of 3.0 V making the Si9145 ideal for use with
NiCd, NMH, and lithium ion battery packs. A mode select pin
allows the output driver polarity to be programmed allowing the
device to function as a step-up or step-down converter.
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