UC3551 Datasheet | Unisonic Technologies

UNISONIC TECHNOLOGIES CO., LTD Preliminary ADVANCED PWM STEP-UP DC-DC CONVERTER CMOS IC - DESCRIPTION The UTC UC3551 is a step-up DC/DC converter with high efficiency and low start-up voltage. It is operaded in stable waveforms without external pensate. This device incorporates an adaptive current mode PWM control loop in which an error amplifier, ramp generator, parator, switch pass element and driver are included. Besides, this circuit provides a stable and high efficient operation over a wide range of load currents. The UTC UC3551 Features high switching rate which is up to 450 KHz, making the external ponent counts less required. Moreover, it Features 17μA low...