UNISONIC TECHNOLOGIES CO., LTD
UC3551
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 compensate. This device incorporates an adaptive current mode PWM control loop in which an error amplifier, ramp generator, comparator, switch pass element and driver are included. Besides, this circuit provides a stable and high efficient ope