Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

L4949 Datasheet(PDF) 1 Page - ON Semiconductor

Part No. L4949
Description  100 mA, 5.0 V, Low Dropout Voltage Regulator with Power−On Reset
Download  10 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
Logo 

L4949 Datasheet(HTML) 1 Page - ON Semiconductor

 
Zoom Inzoom in Zoom Outzoom out
 1 / 10 page
background image
© Semiconductor Components Industries, LLC, 2006
June, 2006 − Rev. 9
1
Publication Order Number:
L4949/D
L4949, NCV4949
100 mA, 5.0 V, Low Dropout
Voltage Regulator with
Power−On Reset
The L4949 is a monolithic integrated 5.0 V voltage regulator with a
very low dropout and additional functions such as power−on reset and
input voltage sense.
It is designed for supplying the micro−computer controlled systems
especially in automotive applications.
Features
Operating DC Supply Voltage Range 5.0 V to 28 V
Transient Supply Voltage Up to 40 V
Extremely Low Quiescent Current in Standby Mode
High Precision Standby Output Voltage 5.0 V ±1%
Output Current Capability Up to 100 mA
Very Low Dropout Voltage Less Than 0.4 V
Reset Circuit Sensing The Output Voltage
Programmable Reset Pulse Delay With External Capacitor
Voltage Sense Comparator
Thermal Shutdown and Short Circuit Protections
NCV Prefix for Automotive and Other Applications Requiring Site
and Control Changes
Pb−Free Packages are Available
Regulator
1.23 Vref
2.0 V
2.0
mA
Reset
1.23 V
Sense
GND
Sense
Output
(So)
Reset
Sense
Input
(Si)
Supply
Voltage (VCC)
VZ
Output
Voltage (Vout)
CT
38
4
6
7
5
2
1
Vs
+
+
Preregulator
6.0 V
Figure 1. Representative Block Diagram
http://onsemi.com
(Top View)
PIN CONNECTIONS
1
2
3
4
8
7
6
5
VZ
CT
GND
Si
VCC
Reset
So
Vout
SOIC−8
D SUFFIX
CASE 751
PDIP−8
N SUFFIX
CASE 626
1
8
1
8
1
8
L4949N
AWL
YYWWG
L4949
ALYWD
G
1
8
See detailed ordering and shipping information in the package
dimensions section on page 8 of this data sheet.
ORDERING INFORMATION
A
= Assembly Location
WL, L
= Wafer Lot
YY, Y
= Year
WW, W = Work Week
G or
G = Pb−Free Device
MARKING DIAGRAMS
1
20
SOIC−20W
DW SUFFIX
CASE 751D
20
1
L4949DW
AWLYYWWG


Html Pages

1  2  3  4  5  6  7  8  9  10 


Datasheet Download




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