LTC3525DISC6-3.3#TRMPBF

LINEAR TECHNOLOGY  LTC3525DISC6-3.3#TRMPBF  同步升压开关稳压器, 固定, 850mV-4.5V输入, 3.3V和0.4A输出, SC-70-6

The is a high efficiency synchronous step-up DC/DC Converter that can start up with an input as low as 0.85V. It offers 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 LTC3525D features a fixed output voltage of 3.3V. In shutdown, VOUT is connected to VIN through the inductor. The device includes a 0.5R N-channel MOSFET switch and a 0.8R P-channel synchronous rectifier. Peak switch current ranges from 150 to 400mA, depending on load, providing enhanced efficiency. Quiescent current is an ultralow 7µA, maximizing battery life in portable applications.

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Only three external components

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VIN >VOUT Operation

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Anti-ringing control

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Short-circuit and overtemperature protection

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Very low profile of 1mm

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VOUT Connected to VIN in shutdown

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Up to 95% efficiency