Linear Technology LT3463A Manuals

LINEAR LT3463/LT3463A handbook

This datasheet provides details of the LT3463/LT3463A dual micropower DC/DC converters. These converters have internal Schottky diodes and are packaged in a 10-lead 3mm × 3mm DFN package. The negative and positive LT3463 converters have a current limit of 250mA. The LT3463A positive converter also has a 250mA limit, while the negative converter has a 400mA limit. Both devices have an input voltage range of 2.4V to 15V, making them ideal for a wide variety of applications. Each converter features a quiescent current of only 20µA, which drops to under 1µA in shutdown. A current limited, fixed off-time control scheme conserves operating current, resulting in high efficiency over a broad range of load current. The 42V switch enables high voltage outputs up to ±40V to be easily generated without the use of costly transformers. The low 300ns off-time permits the use of tiny, low profile inductors and capacitors to minimize footprint and cost in space-conscious portable applications.