LM2704_15 Datasheet, PDF (1/19 Pages) Texas Instruments – LM2704 Micropower Step-up DC/DC Converter with 550mA Peak Current Limit

LM2704
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SNVS175D – FEBRUARY 2002 – REVISED MAY 2013
LM2704 Micropower Step-up DC/DC Converter with 550mA Peak Current Limit
Check for Samples: LM2704
FEATURES
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•2 550mA, 0.7Ω, Internal Switch
• Uses Small Surface Mount Components
• Adjustable Output Voltage up to 20V
• 2.2V to 7V Input Range
• Input Undervoltage Lockout
• 0.01µA Shutdown Current
• Small 5-Lead SOT-23 Package
APPLICATIONS
• LCD Bias Supplies
• White LED Back-Lighting
• Handheld Devices
• Digital Cameras
• Portable Applications
DESCRIPTION
The LM2704 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 LM2704 is ideal for LCD
panels requiring low current and high efficiency as
well as white LED applications for cellular phone
back-lighting. The LM2704 can drive up to 8 white
LEDs from a single Li-Ion battery.
Typical Application Circuit
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PRODUCTION DATA information is current as of publication date.
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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