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SP6643

Part Number	SP6643
Manufacturer	Sipex
Description	Step-Up DC-DC Converter
Published	Jun 7, 2005
Detailed Description	® SP6642/6643 Single Alkaline Cell, High Efficiency Step-Up DC-DC Converter s 20mA Output Current at 1.2V Input s +2...
Datasheet	SP6643 PDF File

Overview

® SP6642/6643 Single Alkaline Cell, High Efficiency Step-Up DC-DC Converter s 20mA Output Current at 1.
2V Input s +2V to +5.
5V Output Range s 0.
85V Guaranteed Start-Up s 83% High Efficiency s 1.
5µA Quiescent Supply Current at V BATT s Reverse Battery Protection s Internal Synchronous Rectifier s 5nA Logic Controlled Shutdown Current From VBATT For The SP6642 s Low-Battery Detection Active LOW Output For The SP6643 s Extremely Small µSOIC Package s Pin-to-pin Compatible With MAX1642 And MAX1643 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 contr...

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