The LM2703 is a micropower step-up DC/DC in a small5-lead SOT-23 package. A current limited, fixed off-timecontrol scheme conserves operating current resulting in highefficiency over a wide range of load conditions. The 22Vswitch allows for output voltages as high as 21V. The low400ns off-time permits the use of tiny, low profile inductorsand capacitors to minimize footprint and cost in spaceconsciousportable applications. The LM2703 is ideal forLCD panels requiring low current and high efficiency as wellas white LED applications for cellular phone back-lighting.The LM2703 can drive up to 4 white LEDs from a singleLi-Ion battery.
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