Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

UC282-1 Datasheet(PDF) 5 Page - Texas Instruments

Part No. UC282-1
Description  FAST LDO LINEAR REGULATOR
Download  18 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
Logo TI1 - Texas Instruments

UC282-1 Datasheet(HTML) 5 Page - Texas Instruments

  UC282-1 Datasheet HTML 1Page - Texas Instruments UC282-1 Datasheet HTML 2Page - Texas Instruments UC282-1 Datasheet HTML 3Page - Texas Instruments UC282-1 Datasheet HTML 4Page - Texas Instruments UC282-1 Datasheet HTML 5Page - Texas Instruments UC282-1 Datasheet HTML 6Page - Texas Instruments UC282-1 Datasheet HTML 7Page - Texas Instruments UC282-1 Datasheet HTML 8Page - Texas Instruments UC282-1 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 18 page
background image
UC2821, UC2822, UC2823, UC282ADJ, UC3821, UC3822, UC3823, UC382ADJ
FAST LDO LINEAR REGULATOR
SLUS317B − JANUARY 2000 − REVISED FEBRUARY 2004
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
pin descriptions (continued)
Figure 1
DROPOUT VOLTAGE (VB − VOUT)
vs
LOAD CURRENT
3
IL− Load Current − A
2
1
0
1.7
1.8
1.9
1.6
TJ = 275C
Figure 2
DROPOUT VOLTAGE (VIN − VOUT)
vs
LOAD CURRENT
3 A
2 A
1 A
100 mA
100
200
300
400
IL - Load Current - A
TJ = 275C
APPLICATION INFORMATION
The UC382 is easy to use. The adjustable version requires two 0.1% resistors to set the output voltage. The
fixed versions of the UC382 require no external resistors. All versions of the UC382 require decoupling
capacitors on the input and output. In a typical application, VB and VIN are driven from switching power supplies
which may have large filter capacitors at their outputs. If the UC382 is further than 12 inches from the power
supply, it is recommended to add local decoupling as close as possible to the linear regulator.
Decouple the output of the UC382 with at least 100
µF of high-quality tantalum or Sanyo OSCON capacitors
close to the VOUT pin for maximum stability. Many applications involving Ultra-Fast GTL or BTL applications
require additional capacitance close to the load. The exact amount will vary according to speed and magnitude
of the load transients and the tolerance allowed for transients on VOUT. When specifying the decoupling
capacitors, the series resistance of the capacitor bank is an important factor in its ability to filter load transients.
The UC382 allows for Kelvin sensing the voltage at the load. This improves regulation performance and
eliminates the voltage drops due to wire-trace resistance. This voltage drop must be added to the headroom
(VIN to VOUT and VB to VOUT). The dropout of 450 mV is measured at the pins and does not include additional
drops due to trace resistance. The minimum load current is 10 mA.
Two or more UC382’s may be used in parallel. While stable, this arrangement does degrade the transient
response.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18 


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   |   Alldatasheet API   |   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