UNISONIC TECHNOLOGIES CO., LTD
UD18203
Preliminary LINEAR INTEGRATED CIRCUIT
1 of 4
Copyright © 2018 Unisonic Technologies Co., Ltd
QW-R115-030.a
2A, 18V SYNCHRONOUS
FAST RESPONSE BUCK
CONVERTER
DESCRIPTION
The UTC UD18203 is a monolithic synchronous buck
regulator with built-in main switch and synchronous switch power
MOSFETs. It operates over a wide input voltage range from 4.5V
to 18V and achieves 2A continuous output current.
It adopts PWM architecture to achieve fast transient response
and high efficiency at light loads. It operates at pseudo-constant
frequency of 500kHz under heavy load conditions. Internal
soft-start minimizes the inrush supply current at initial startup.
FEATURES
* 4.5V~18V Input Voltage Range
* Up to 2A Output Current
* 140/1
30mΩ Internal Power MOSFET Switch
* PWM Architecture to Achieve Fast Transient Response
* Build-in soft start function
* 500kHz Switching Frequency
* Thermal Shutdown Protection
ORDERING INFORMATION
Ordering Number
Lead Free Halogen Free
Package Packing
UD18203L-AG6-R UD18203G-AG6-R SOT-26 Tape Reel