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LM2703MFX-ADJ Fiches technique(PDF) 1 Page - Texas Instruments

No de pièce LM2703MFX-ADJ
Description  LM2703 Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM2703MFX-ADJ Fiches technique(HTML) 1 Page - Texas Instruments

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background image
L
10 PH
20V
15 mA
R1
510k
R2
33k
LM2703
SW
FB
GND
VIN
SHDN
D
1
2
3
4
5
VIN = Li-Ion
4.7 PF
CIN
CIN: Taiyo Yuden Ceramic
COUT: Taiyo Yuden Ceramic
L: Coilcraft DT1608C-103 or Murata
LQY33PN100M02
(low profile)
D: Motorola MBRM130LT3
1 PF
COUT
LM2703
www.ti.com
SNVS172F – FEBRUARY 2002 – REVISED MAY 2013
LM2703 Micropower Step-Up DC/DC Converter with 350mA Peak Current Limit
Check for Samples: LM2703
1
FEATURES
DESCRIPTION
The LM2703 is a micropower step-up DC/DC in a
2
350mA, 0.7
Ω, Internal Switch
small 5-lead SOT-23 package. A current limited, fixed
Uses Small Surface Mount Components
off-time control scheme conserves operating current
Adjustable Output Voltage up to 21V
resulting in high efficiency over a wide range of load
conditions. The 22V switch allows for output voltages
2.2V to 7V Input Range
as high as 21V. The low 400ns off-time permits the
Input Undervoltage Lockout
use of tiny, low profile inductors and capacitors to
0.01µA Shutdown Current
minimize
footprint
and
cost
in
space-conscious
portable applications. The LM2703 is ideal for LCD
Small 5-Lead SOT-23 Package
panels requiring low current and high efficiency as
well as white LED applications for cellular phone
APPLICATIONS
back-lighting. The LM2703 can drive up to 4 white
LCD Bias Supplies
LEDs from a single Li-Ion battery.
White LED Back-Lighting
Handheld Devices
Digital Cameras
Portable Applications
Typical Application Circuit
Figure 1. Typical 20V Application
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2002–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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