USR1101_15 Datasheet, PDF (1/5 Pages) Unisonic Technologies – 5V/12V SYNCHRONOUS BUCK PWM DC-DC CONTROLLER

UNISONIC TECHNOLOGIES CO., LTD
USR1101
Preliminary
LINEAR INTEGRATED CIRCUIT
5V/12V SYNCHRONOUS
BUCK PWM DC-DC
CONTROLLER
 DESCRIPTION
The UTC USR1101 is a high efficiency synchronous buck
PWM controller, with operating at fixed 300kHz frequency,
Internal soft-start, frequency compensation networks and
integrates all of the control, output adjustment, monitoring and
protection functions into a single package.
Adjustable over-current protection (OCP) monitors the voltage
drop across the R_DS(ON) of the lower MOSFET for synchronous
buck PWM DC-DC controller.
 FEATURES
* Operating with 5V or 12V supply voltage
* Drives all low cost N-channel MOSFETs
* PWM control mode
* 300kHz fixed frequency
* Internal soft-start
* Over-current fault monitor on MOSFET, no current sense
resistor required
* RoHS compliant and 100% lead (Pb)-free
 ORDERING INFORMATION
Ordering Number
USR1101G-S08-R
Package
SOP-8
SOP-8
Packing
Tape Reel
USR1101G-S08-R
(1)Packing Type
(2)Package Type
(3)Green Package
(1) R: Tape Reel
(2) S08: SOP-8
(3) G: Halogen Free and Lead Free
 MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
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