Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LM2674 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM2674
Description  SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator
Download  26 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2674 Datasheet(HTML) 3 Page - National Semiconductor (TI)

  LM2674 Datasheet HTML 1Page - National Semiconductor (TI) LM2674 Datasheet HTML 2Page - National Semiconductor (TI) LM2674 Datasheet HTML 3Page - National Semiconductor (TI) LM2674 Datasheet HTML 4Page - National Semiconductor (TI) LM2674 Datasheet HTML 5Page - National Semiconductor (TI) LM2674 Datasheet HTML 6Page - National Semiconductor (TI) LM2674 Datasheet HTML 7Page - National Semiconductor (TI) LM2674 Datasheet HTML 8Page - National Semiconductor (TI) LM2674 Datasheet HTML 9Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 26 page
background image
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
45V
ON/OFF Pin Voltage
−0.1V
≤ V
SH
≤ 6V
Switch Voltage to Ground
−1V
Boost Pin Voltage
V
SW +8V
Feedback Pin Voltage
−0.3V
≤ V
FB
≤ 14V
ESD Susceptibility
Human Body Model (Note 2)
2 kV
Power Dissipation
Internally Limited
Storage Temperature Range
−65˚C to +150˚C
Lead Temperature
M Package
Vapor Phase (60s)
+215˚C
Infrared (15s)
+220˚C
N Package (Soldering, 10s)
+260˚C
LLP Package (See AN-1187)
Maximum Junction Temperature
+150˚C
Operating Ratings
Supply Voltage
6.5V to 40V
Junction Temperature Range
−40˚C
≤ T
J
≤ +125˚C
Electrical Characteristics
LM2674-3.3 Specifications with standard type face are for T
J = 25˚C, and those with bold type face apply over full
Operating Temperature Range.
Symbol
Parameter
Conditions
Typical
Min
Max
Units
(Note 4)
(Note 5)
(Note 5)
SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3)
V
OUT
Output Voltage
V
IN = 8V to 40V, ILOAD = 20 mA to 500 mA
3.3
3.251/3.201
3.350/3.399
V
V
OUT
Output Voltage
V
IN = 6.5V to 40V, ILOAD = 20 mA to 250 mA
3.3
3.251/3.201
3.350/3.399
V
η
Efficiency
V
IN = 12V, ILOAD = 500 mA
86
%
LM2674-5.0
Symbol
Parameter
Conditions
Typical
Min
Max
Units
(Note 4)
(Note 5)
(Note 5)
SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3)
V
OUT
Output Voltage
V
IN = 8V to 40V, ILOAD = 20 mA to 500 mA
5.0
4.925/4.850
5.075/5.150
V
V
OUT
Output Voltage
V
IN = 6.5V to 40V, ILOAD = 20 mA to 250 mA
5.0
4.925/4.850
5.075/5.150
V
η
Efficiency
V
IN = 12V, ILOAD = 500 mA
90
%
LM2674-12
Symbol
Parameter
Conditions
Typical
Min
Max
Units
(Note 4)
(Note 5)
(Note 5)
SYSTEM PARAMETERS Test Circuit Figure 2 (Note 3)
V
OUT
Output Voltage
V
IN = 15V to 40V, ILOAD = 20 mA to 500 mA
12
11.82/11.64
12.18/12.36
V
η
Efficiency
V
IN = 24V, ILOAD = 500 mA
94
%
LM2674-ADJ
Symbol
Parameter
Conditions
Typ
Min
Max
Units
(Note 4)
(Note 5)
(Note 5)
SYSTEM PARAMETERS Test Circuit Figure 3 (Note 3)
V
FB
Feedback
Voltage
V
IN = 8V to 40V, ILOAD =20mAto500 mA
V
OUT Programmed for 5V
(see Circuit of Figure 3)
1.210
1.192/1.174
1.228/1.246
V
V
FB
Feedback
Voltage
V
IN = 6.5V to 40V, ILOAD =20mAto250 mA
V
OUT Programmed for 5V
(see Circuit of Figure 3)
1.210
1.192/1.174
1.228/1.246
V
www.national.com
3


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26 


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