LT1944-1EMS#PBF

LINEAR TECHNOLOGY  LT1944-1EMS#PBF  芯片, 升压稳压器, 双路, 1.2-15V, 0.1/0.75A, 10MSOP

The is a dual micropower step-up DC/DC Converter with 1.5µs OFF-time. One converter is designed with a 100mA current limit and a 400ns OFF-time, the other with a 175mA current limit and a 1.5µs OFF-time. The 1.5µs OFF-time converter is ideal for generating an output voltage that is close to the input voltage i.e. a LiIon to 5V converter or a two-cell to 3.3V converter. With an input voltage range of 1.2 to 15V, the LT1944-1 is ideal for a wide variety of applications. It features a quiescent current of only 20µA at no load, which further reduces to 0.5µA in shutdown. A current limited, fixed OFF-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. Tiny, low profile inductors and capacitors can be used to minimize footprint and cost in space-conscious portable applications.

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Uses small surface mount components

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20µA Low quiescent current in active mode

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1µA Low quiescent current in shutdown mode