UC3551 Datasheet - Unisonic Technologies

UC3551 ADVANCED PWM STEP-UP DC-DC CONVERTER

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 a.

UC3551 Features

* high switching rate which is up to 450 KHz, making the external component counts less required. Moreover, it features 17μA low quiescent current, which makes the battery life longer. The low start-up input voltage below 1V makes UTC UC3551 suitable for 1 to 4 battery cells applications of providing

UC3551-UnisonicTechnologies.pdf