LT3470EDDB#PBF

LINEAR TECHNOLOGY  LT3470EDDB#PBF  直流-直流开关降压逐步递减稳压器, 可调, 4V-40V输入, 1.25V-16V输出, 200mA输出, DFN-8

The is a micropower step-down DC-to-DC Converter integrates a 300mA power switch, catch diode and boost diode. The LT3470 combines Burst Mode® and continuous operation to allow the use of tiny inductor and capacitors while providing a low ripple output to loads of up to 200mA. With its wide input range of 4 to 40V, the LT3470 can regulate a wide variety of power sources, from 2-cell Li-ion batteries to unregulated wall transformers and lead-acid batteries. Quiescent current in regulation is just 26µA in a typical application while a zero current shutdown mode disconnects the load from the input source, simplifying power management in battery-powered systems. Fast current limiting and hysteretic control protects the LT3470 and external components against shorted outputs, even at 40V input.

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Solution size as small as 50mm²

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26µA at 12VIN to 3.3VOUT Low quiescent current

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<10mV Low output ripple

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<1µA Shutdown mode