UNISONIC TECHNOLOGIES CO., LTD

UD06122

CMOS IC

www.unisonic.com.tw

1 of 10

Copyright © 2016 Unisonic Technologies Co., Ltd

QW-R115-013 .A

DUAL 1.2A 1.5MHz

SYNCHRONOUS BUCK

CONVERTER



DESCRIPTION

The

UTC

UD06122

is

a

dual

high-efficiency

Pulse-Width-Modulated (PWM) step-down DC-DC converter. It is

capable of delivering 1.2A output current over a wide input

voltage range from 2.5V to 6.0V, the UTC UD06122 is ideally

suited for portable electronic devices that are powered from 1-cell

Li-ion battery or from other power sources within the range such

as cellular phones, PDAs and other handheld devices.

Two operational modes are available: PWM/Low-Dropout auto-switch and shutdown modes. Internal

diode is required in practical application.

The UTC UD06122 enters Low-Dropout mode when normal PWM cannot provide regulated output voltage by

continuously turning on the upper PMOS. The UTC UD06122 enter shutdown mode and consumes less than 0.1μA

when EN pin is pulled low.

The switching ripple is easily smoothed-out by small package filtering elements due to a fixed operation freq

uency of 1.5MHz. Other features include soft start, lower internal reference voltage with 2% accuracy, over t

emperature protection, and over current protection.



FEATURES

* 2.5V~6.0V input voltage range

* Output Adjustable from 0.6V to VIN

* 200/160mΩ Internal Power MOSFET Switch

* Stable with Low ESR Output Ceramic Capacitors

* Up to 95% Efficiency

* Less than 1μA Shutdown Current

* 1.5MHz Switching Frequency

* Thermal Shutdown Protection

* Current limit and short circuit protections.

* Build-in soft start function



ORDERING INFORMATION

Ordering Number

Package

Packing

UD06122G-K10-3030-R

DFN-10(3×3)

Tape Reel



MARKING