DESCRIPTION

The UTC UD30600 is a fully integrated easy to use synchronous

step-down Buck converter, which integrated low on resistance

high-side and low-side power MOSFETs.

The UD30600 can deliver 6A of output current efficiently with

constant on time (COT) control for fast loop response. The UD30600

can select frequency and work mode by FM pin, for achieving high

efficiency at light load, the device can work at PFM mode, IC also

can work at FPWM mode to achieve small output ripple with full load

range.

The UD30600 has built-in protection features, such as

cycle-by-cycle current limit, hiccup mode short-circuit protection,

output over voltage protection, FB open protection and thermal

shutdown in case of excessive power dissipation.

FEATURES

* Wide 3.6V to 30V Input Range

* Support 6A Continuous Output Current

* 500kHz/1.1MHz Switching Frequency Selectable

* Low RDS(ON) for Internal Switches:

High-side:32mΩ

Low-side: 20mΩ

* PFM and FPWM Mode Selectable

* Constant On Time Control for Fast Loop Response l

* Support Up to 100% Duty Cycle

* Power good inductor

* Output Discharge

* Output Voltage Adjustable from 0.6V

* Support Pre-Biased Output Startup

* Full Protection, OCP, OVP, OTP, SCP, FB Open Protection