Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

USR1101 Datasheet(PDF) 5 Page - Unisonic Technologies

Part # USR1101
Description  5V/12V SYNCHRONOUS BUCK PWM DC-DC CONTROLLER
Download  5 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

USR1101 Datasheet(HTML) 5 Page - Unisonic Technologies

  USR1101_15 Datasheet HTML 1Page - Unisonic Technologies USR1101_15 Datasheet HTML 2Page - Unisonic Technologies USR1101_15 Datasheet HTML 3Page - Unisonic Technologies USR1101_15 Datasheet HTML 4Page - Unisonic Technologies USR1101_15 Datasheet HTML 5Page - Unisonic Technologies  
Zoom Inzoom in Zoom Outzoom out
 5 / 5 page
background image
USR1101
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
5 of 5
www.unisonic.com.tw
QW-R103-062.b
APPLICATION INFORMATION
OCP
Sense the low-side MOSFET’s RDS(ON) to set over-current trip point.
Connecting a resistor (ROCSET) from this pin to the source of the upper MOSFET and the drain of the lower
MOSFET sets the over-current trip point. ROCSET, an internal 40μA current source, and the lower MOSFET on
resistance, RDS(ON), set the converter over-current trip point (IOCSET) according to the following equation:
MOSFET
lower
the
of
R
0.4V
R
A
40
I
DS(ON)
OCSET
OCSET
Shutdown
Pulling low the OPS pin by a small single transistor can shutdown the UTC USR1101 PWM controller as shown in
typical application circuit.
TYPICAL APPLICATION CIRCUIT
BOOT
COUT
1000µF×3
M1
C2
0.1µF
C3
1µF
C4
470µF
VIN
+5V~+12V
D1
1N4148
C1
1µF
R1
10
L1
3µH
VOUT
R2
32
R3
68
R4
200-1k
C5
0.1-0.33µF
1
5
2
8
67
3
4
VCC
FB
GND
LGATE
OPS
NC
UGATE
Disable
ROCSET
M2
UTC USR1101
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.


Similar Part No. - USR1101_15

ManufacturerPart #DatasheetDescription
logo
Unisonic Technologies
USR1101G-S08-R UTC-USR1101G-S08-R Datasheet
152Kb / 6P
   5V/12V SYNCHRONOUS BUCK PWM DC-DC CONTROLLER
USR1101G-S08-T UTC-USR1101G-S08-T Datasheet
152Kb / 6P
   5V/12V SYNCHRONOUS BUCK PWM DC-DC CONTROLLER
USR1101L-S08-R UTC-USR1101L-S08-R Datasheet
152Kb / 6P
   5V/12V SYNCHRONOUS BUCK PWM DC-DC CONTROLLER
USR1101L-S08-T UTC-USR1101L-S08-T Datasheet
152Kb / 6P
   5V/12V SYNCHRONOUS BUCK PWM DC-DC CONTROLLER
More results

Similar Description - USR1101_15

ManufacturerPart #DatasheetDescription
logo
Richtek Technology Corp...
RT8105 RICHTEK-RT8105 Datasheet
216Kb / 12P
   5V/12V Synchronous Buck PWM DC/DC Controller
RT9214 RICHTEK-RT9214 Datasheet
345Kb / 17P
   5V/12V Synchronous Buck PWM DC-DC Controller
logo
Unisonic Technologies
USR1101 UTC-USR1101 Datasheet
152Kb / 6P
   5V/12V SYNCHRONOUS BUCK PWM DC-DC CONTROLLER
logo
Richtek Technology Corp...
RT9218 RICHTEK-RT9218 Datasheet
403Kb / 18P
   5V/12V Synchronous Buck PWM DC-DC and Linear Power Controller
logo
Cystech Electonics Corp...
EM5303QP CYSTEKEC-EM5303QP Datasheet
507Kb / 12P
   5V/12V Synchronous Buck PWM Controller
logo
Excelliance MOS Corp.
EM5303 EXCELLIANCE-EM5303 Datasheet
387Kb / 11P
   5V/12V Synchronous Buck PWM Controller
logo
Eutech Microelectronics...
EUP6514 EUTECH-EUP6514 Datasheet
379Kb / 12P
   5V/12V Synchronous Buck PWM Controller
logo
Excelliance MOS Corp.
EM5301 EXCELLIANCE-EM5301 Datasheet
496Kb / 13P
   5V/12V Synchronous Buck PWM Controller
logo
Richtek Technology Corp...
RT8101 RICHTEK-RT8101 Datasheet
251Kb / 15P
   12V Synchronous Buck PWM DC-DC
logo
Monolithic Power System...
EV2910ES-00A MPS-EV2910ES-00A Datasheet
348Kb / 5P
   5V/12V Synchronous Buck PWM DC/DC and Linear Power Controller EV Board
More results


Html Pages

1 2 3 4 5


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com