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LM2703

National Semiconductor
Part Number LM2703
Manufacturer National Semiconductor
Description Micropower Step-up DC/DC Converter
Published Mar 22, 2005
Detailed Description LM2703 Micropower Step-up DC/DC Converter with 350mA Peak Current Limit April 2003 LM2703 Micropower Step-up DC/DC Con...
Datasheet PDF File LM2703 PDF File

LM2703
LM2703

Overview
LM2703 Micropower Step-up DC/DC Converter with 350mA Peak Current Limit April 2003 LM2703 Micropower Step-up DC/DC Converter with 350mA Peak Current Limit General Description The LM2703 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 spaceconscious portable applications.
The LM2703 is ideal for LCD panels requiring low current and high efficiency as well as white LED applications for cellular phone back-lighting.
The LM2703 can drive up to 4 white LEDs from a single Li-Ion battery.
Features n n n n n n n 350mA, 0.
7Ω, internal switch Uses small surface mount components Adjustable output voltage up to 20V 2.
2V to 7V input range Input undervoltage lockout...


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