DESCRIPTION 

The UTC UC3206X is a high efficiency synchronous, step-down 

DC/DC converter. Its input voltage range is from 2V to 6V, and 

Output voltage is internally set  in a range from 0.8V to 4.0V in 

increments of 50mV (accuracy: ±2.0%). 

The device is operated by  3.0MHz, and includes 0.42Ω

P-channel driver transistor and 0.52Ω N-channel switching 

transistor. The device provides short-time turn-on by the soft start 

function internally set in 0.25 ms (TYP). 

FEATURES 

* Input voltage: 2.0V~6.0V 

* Output voltage: 0.8V~4.0V (+2.0%) 

* P-ch ON resistance: 0.42Ω 

* N-ch ON resistance: 0.52Ω 

* Output current: 600mA 

* Oscillation frequency: 3.0MHz (+15%) 

* Maximum duty cycle: 100% 

* High efficiency : 92% (TYP.) 

* High speed soft-start circuit and Current limiter circuit built-in 

* CL high speed auto discharge 

* Low ESR ceramic capacitor compatible