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L6920DB

STMicroelectronics
Part Number L6920DB
Manufacturer STMicroelectronics
Description Synchronous rectifier step up converter
Published Aug 28, 2007
Detailed Description www.DataSheet4U.com L6920DB Synchronous rectifier step up converter General features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 0.8V start up...
Datasheet PDF File L6920DB PDF File

L6920DB
L6920DB

Overview
www.
DataSheet4U.
com L6920DB Synchronous rectifier step up converter General features ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ 0.
8V start up input voltage Up to 5.
5V operating input voltage Internal synchronous rectifier Adjustable output voltage from 1.
8V 3.
3V and 5V fixed output voltages Low battery voltage detection Reverse battery protection 750mA input current limit Switching frequency up to 1MHz 1.
23V reference voltage available MSOP8 Description The L6920DB is a high efficiency monolithic step up switching converter IC especially designed for battery powered application.
Package is MSOP8 in order to minimize PCB space.
It requires only three external components to realize the conversion from the battery voltage to the selected output voltage.
The minimum output voltage is 1.
8V: suitable to supply the most advanced ASIC and µP.
High switching frequency allows for a low profile, small sized inductor and output capacitor to be used.
Reference voltage, low battery detection and Shutdown are provided together with over current.
Applications ■ ■ ■ ■ ■ ■ ■ Conversion from 1 to 3 alkaline, NiMH, NiCd battery cells or 1 lithium ION PDA and handheld instruments Digital cameras Cellular phones GPS Distributed power Application circuit L6920DB 3.
3V October 2006 Rev 5 1/16 www.
st.
com 16 Contents L6920DB Contents 1 Pin settings .
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3 1.
1 1.
2 Pin connection .
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3 Pin description .
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3 2 Electrical data .
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4 2.
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2 Maximum ratings .
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4 Thermal data .
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