Features: ` Up to 95% Efficiency` Output Disconnect and Inrush Current Limit` Fixed Output Voltages of 3.3V or 5V` Delivers 60mA at 3.3V from a 1V Input, or 140mA at 3.3V from a 1.8V Input` Delivers 175mA at 5V from a 3V Input` Burst Mode® Operation: IQ = 7A` Only Three External Components` 1V...
LTC3525-3.3: Features: ` Up to 95% Efficiency` Output Disconnect and Inrush Current Limit` Fixed Output Voltages of 3.3V or 5V` Delivers 60mA at 3.3V from a 1V Input, or 140mA at 3.3V from a 1.8V Input` Delivers...
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The LTC®3525-3.3/LTC3525-5 are high efficiency synchronous step-up DC/DC converters with output disconnect that can start up with an input as low as 1V. They offer a compact, high efficiency alternative to charge pumps in single cell or dual cell alkaline or Li-ion applications. Only three small external components are required. The LTC3525 is offered in fixed output voltages of 3.3V or 5V.
The LTC3525-3.3 includes a 0.5 N-channel MOSFET switch and a 0.8 P-channel synchronous rectifier. Peak switch current ranges from 150mA to 400mA, depending on load, providing enhanced efficiency. Quiescent current is an ultralow 7A, maximizing battery life in portable applications.
Other features include <1A shutdown current, antiringing control and thermal shutdown. The LTC3525 is available in a tiny 6-pin SC-70 package.