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LM2705MF-ADJ Datasheet

  • LM2705MF-ADJ

  • Micropower Step-up DC/DC Converter with 150mA Peak Current L...

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LM2705 Micropower Step-up DC/DC Converter with 150mA Peak Current Limit
April 2003
LM2705
Micropower Step-up DC/DC Converter with 150mA Peak
Current Limit
General Description
The LM2705 is a micropower step-up DC/DC in a small
5-lead SOT-23 package. A current limited, fixed off-time
control scheme conserves operating current resulting in high
efficiency over a wide range of load conditions. The 21V
switch allows for output voltages as high as 20V. The low
400ns off-time permits the use of tiny, low profile inductors
and capacitors to minimize footprint and cost in space-
conscious portable applications. The LM2705 is ideal for
LCD panels requiring low current and high efficiency as well
as white LED applications for cellular phone back-lighting.
The LM2705 can drive up to 3 white LEDs from a single
Li-Ion battery. The low peak inductor current of the LM2705
makes it ideal for USB applications.
Features
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150mA, 0.7鈩? internal switch
Uses small surface mount components
Adjustable output voltage up to 20V
2.2V to 7V input range
Input undervoltage lockout
0.01碌A(chǔ) shutdown current
Small 5-Lead SOT-23 package
Applications
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LCD Bias Supplies
White LED Back-Lighting
Handheld Devices
Digital Cameras
Portable Applications
Typical Application Circuit
20039701
FIGURE 1. Typical 20V Application
漏 2003 National Semiconductor Corporation
DS200397
www.national.com

LM2705MF-ADJ 產(chǎn)品屬性

  • National Semiconductor (TI)

  • 7 V

  • 20 V

  • 1

  • + 125 C

  • SMD/SMT

  • SOT-23

  • - 40 C

  • Reel

  • 1000

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