18V, 2A SYNC.STEP-DOWN CONVERTER

DESCRIPTION

The UTC UD182012 is a monolithic buck switching regulators

based on I2 architecture for fast transient response. Operating with

an input range of 4.5V~18V, UTC UD182012 delivers 2A of

continuous output current with two integrated N-Channel MOSFETs.

The internal synchronous power switches provide high efficiency

without the use of an external Schottky diode. At light loads, UTC

UD182012 operates in low frequency to maintain high efficiency.

UTC UD182012 guarantees robustness with output short

protection, thermal protection, current run-away protection and input

under voltage lockout.

FEATURES

* 4.5V to 18V operating input range 2A output current

* Up to 95% efficiency

* PFM at light load

* 600kHz switching frequency

* Internal soft-start

* Input under-voltage lockout

* Current run-away protection

* Output short protection

* Thermal protection