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| LM3555TLE Datasheet, PDF (2/33 Pages) Texas Instruments – LM3555 Synchronous Boost Converter with 500 mA High Side LED Driver and Dual-Mode Control Interface | |||
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LM3555
SNVS594E â JANUARY 2009 â REVISED NOVEMBER 2011
Typical Application Circuits
2.2 µH
CIN
10 µF
VBAT
VIN
SW
VOUT
STROBE
TORCH
I2C/EN
SCL/EN1
SDA/EN2
LM3555
VLED
PGND SGND IND
COUT
10 µF
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Connection Diagram
CIN1
L1
COUT
LM3555
7.0 mm
CIN2
A1
A2
A3
A3
A2
A1
B1
B2
B3
C1
C2
C3
D1
D2
D3
B3
B2
B1
C3
C2
C1
D3
D2
D1
TOP VIEW
(BUMPS FACE DOWN)
BOTTOM VIEW
(BUMPS FACE UP)
TOP MARKING
Note: The actual physical placement of the package marking will vary from part to part. The package
PDUNLQJ ³+<´ designates the date code. ³77´ LV D 16& LQWHUQDO FRGH IRU GLH WUDFHDELOLW\. Both will vary
considerably. ³3555´ LGHQWLILHV WKH GHYLFH (part number, option, etc.).
Pin Functions
Pin Position
A1
A2
Signal
Name
PGND
SGND
Pin Descriptions
Input / Output
(I/O)
Power ground.
Signal ground.
2
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Product Folder Links: LM3555
Description
Copyright © 2009â2011, Texas Instruments Incorporated
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