1FEATURES
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.