UC3500

DESCRIPTION

The UTC UC3500 Step-up DC/DC converters are optimized

for applications that prioritize high efficiency and high frequency.

The efficiency is greatly improved by utilizing an internal VFM

controlled scheme that switches with fixed frequency and is

adjustable up to more than 150 KHz depending on the load.

The UTC UC3500 requires only three external components

to realize the conversion from the battery voltage to the selected

output voltage in the range of 2.5V ~ 5.5V.

The start-up voltage of UTC UC3500 is guaranteed at 0.8V

and the device is operating down to 0.5V. The Output current is

guaranteed up to 150mA, while quiescent current is only 18μA.

FEATURES

* 0.8V start-up voltage

* 0.5V hold-on voltage

* Output current up to 150mA

* Low supply current of 18μA

* Wide output voltage range of 2.5V~5.5V

* High efficiency up to 88%

* Low profile and minimum external components

规格书UC3500