DC1341B

DC1341B demonstration circuit features LT®3757A in a 300KHz SEPIC converter circuit designed for a 5V at 3A output from a 4.5V to 36V input voltage range. The LT3757A operates over an input range of 2.9V to 40V suitable for applications from single-cell lithium-ion battery portable electronics up to high voltage automotive and industrial power supplies. It also exhibits low shutdown quiescent current of 1µA making them an ideal fit for battery-operated systems. Thanks to a novel FBX pin architecture, the LT3757A can be connected directly to a divider from either the positive output or the negative output to ground. It also packs many popular features such as soft-start, input undervoltage lockout, adjustable frequency and synchronization in a small 10-lead MSOP package or a 3mm x 3mm QFN package.

Notes

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