(PDF) SP6643EU Datasheet - Single Alkaline Cell / High Efficiency Step-Up DC-DC Converter

Número de pieza	SP6643EU
Descripción	Single Alkaline Cell / High Efficiency Step-Up DC-DC Converter
Fabricantes	Sipex
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No Preview Available ! SP6642/3 ® Application Note: High Current Output s 40mA Output Current for the SP6642/3 Single Cell to 2V to 5V Converter s High Efficiency: 81% s Twice the Output Current as the Pin-to-Pin Compatible MAX1642/3 s 0.75V Start-up Voltage SP6642/3 40mA Output Application: Block Diagram Single Cell 47µH SP6642/3 DC/DC Converter 2 to 5V Pagers, Remotes, Medical Devices Description The SP6642/6643 devices are high-efficiency, low-power step-up DC-DC converters for +1V inputs ideal for single alkaline cell applications such as pagers, remote controls, pointing devices and other low-power portable products. This application note is for users like medical devices, emergency lighting and others who need twice the output current than the datasheet specified values for the SP6642/6643. Typically specified at 20mA for 3.3V out with a 1.2V input, the SP6642 can actually output double the current if a lower value of inductor is selected. SP6642/6643 Applications Schematic – 47µH Inductor SP6642/6643APN/02 SP6642/6643 Application Note 1 © Copyright 2000 Sipex Corporation 1 page

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PDF SP6643EU Data sheet ( Hoja de datos )