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LM3554 Datasheet(PDF) 2 Page - Texas Instruments

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Part # LM3554
Description  Synchronous Boost Converter with 1.2A Dual High Side LED Drivers and I2C Compatible
PDF  43 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM3554 Datasheet(HTML) 2 Page - Texas Instruments

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4.5 mm
5.1 mm
HWEN
SCL
SDA
STROBE
TX1/TORCH/
GPIO1
IN
OUT
GND
LED1
LED2
LEDI/NTC
SW
4.5V or 5V DC Power Rail
Flash
LEDs
Indicator
LED
ENVM/TX2
/GPIO
VBIAS
D1
D2
0.1 PF
RBIAS
4.7 PF
4.7 PF
2.2 PH
2 k:
Thermistor
.5V ± 5.5V
LM3554
SNVS549A – JUNE 2009 – REVISED APRIL 2011
www.ti.com
Typical Application Circuits
Figure 1. Example Layout
Application Circuit Component List
Component
Manufacturer
Value
Part Number
Size (mm)
Rating
L
TOKO
2.2µH
FDSE0312-2R2M
3×3×1.2
2.3A(0.2
Ω)
COUT
Murata
4.7µF/10µF
GRM188R60J475M,
1.6×0.8×0.8 (0603)
6.3V
or
GRM188R60J106M
CIN
Murata
4.7µF
GRM185R60J475M
1.6×0.8×0.8 (0603)
6.3V
LEDs
Lumiled
LXCL-PWF4
1.5A
2
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Copyright © 2009–2011, Texas Instruments Incorporated
Product Folder Links: LM3554



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