The AS1331 buck-boost converter provides continuous transitions between buck and boost mode and is suitable for dual- or triple-cell alkaline, NiCd, NiMH, and single-cell Li-ion battery applications. It offers an adjustable output voltage range from 2.5 to 3.3 V from an input voltage range of 1.8 to 5.5 V.
Fixed-output voltage variants of 2.5, 3.0, and 3.3 V with ±3% accuracy are also available. From a Li-ion battery input voltage range, the converter offers 300–mA output current. It offers 90% efficiency and 22-µA quiescent current. In shutdown mode, the converter disconnects the input from the output drawing 100 nA. ($1.29 ea/1,000 — available now.)
austriamicrosystems , Unterpremstaetten , Austria
Rene Wutte 011-43-(0)-3136-500-5653
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