Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LM2671 Datasheet(PDF) 24 Page - Texas Instruments

Click here to check the latest version.
Part No. LM2671
Description  LM2671 SIMPLE SWITCHER짰 Power Converter High Efficiency 500-mA Step-Down Voltage Regulator With Features
Download  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

LM2671 Datasheet(HTML) 24 Page - Texas Instruments

Back Button LM2671 Datasheet HTML 20Page - Texas Instruments LM2671 Datasheet HTML 21Page - Texas Instruments LM2671 Datasheet HTML 22Page - Texas Instruments LM2671 Datasheet HTML 23Page - Texas Instruments LM2671 Datasheet HTML 24Page - Texas Instruments LM2671 Datasheet HTML 25Page - Texas Instruments LM2671 Datasheet HTML 26Page - Texas Instruments LM2671 Datasheet HTML 27Page - Texas Instruments LM2671 Datasheet HTML 28Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 24 / 36 page
background image
24
LM2671
SNVS008L – SEPTEMBER 1998 – REVISED JUNE 2016
www.ti.com
Product Folder Links: LM2671
Submit Documentation Feedback
Copyright © 1998–2016, Texas Instruments Incorporated
9.2.2.2.5
Input Capacitor (CIN)
A low ESR aluminum or tantalum bypass capacitor is required between the input pin and ground to prevent large
voltage transients from appearing at the input. This capacitor must be placed close to the IC using short leads. In
addition, the RMS current rating of the input capacitor must be selected to be at least ½ the DC load current. The
capacitor manufacturer data sheet must be checked to assure that this current rating is not exceeded. The
curves shown in Figure 16 show typical RMS current ratings for several different aluminum electrolytic capacitor
values. A parallel connection of two or more capacitors may be required to increase the total minimum RMS
current rating to suit the application requirements.
For an aluminum electrolytic capacitor, the voltage rating must be at least 1.25 times the maximum input voltage.
Caution must be exercised if solid tantalum capacitors are used. The tantalum capacitor voltage rating must be
twice the maximum input voltage. The Table 10 and Table 11 show the recommended application voltage for
AVX TPS and Sprague 594D tantalum capacitors. TI also recommends that they be surge current tested by the
manufacturer. The TPS series available from AVX, and the 593D and 594D series from Sprague are all surge
current tested. Another approach to minimize the surge current stresses on the input capacitor is to add a small
inductor in series with the input supply line.
Table 10. AVX TPS
RECOMMENDED
APPLICATION VOLTAGE
VOLTAGE
RATING
85°C RATING
3.3
6.3
5
10
10
20
12
25
15
35
Table 11. Sprague 594D
RECOMMENDED
APPLICATION VOLTAGE
VOLTAGE
RATING
85°C RATING
2.5
4
3.3
6.3
5
10
8
16
12
20
18
25
24
35
29
50
Use caution when using ceramic capacitors for input bypassing, because it may cause severe ringing at the VIN
pin.
The important parameters for the input capacitor are the input voltage rating and the RMS current rating. With a
maximum input voltage of 28 V, an aluminum electrolytic capacitor with a voltage rating of at least
35 V (1.25 × VIN) is required.
The RMS current rating requirement for the input capacitor in a buck regulator is approximately ½ the DC load
current. In this example, with a 500-mA load, a capacitor with a RMS current rating of at least 250 mA is
required. The curves shown in Figure 22 can be used to select an appropriate input capacitor. From the curves,
locate the 35-V line and note which capacitor values have RMS current ratings greater than 250 mA.


Similar Part No. - LM2671

ManufacturerPart No.DatasheetDescription
National Semiconductor (TI)
National Semiconductor ...
LM2671 NSC-LM2671 Datasheet
972Kb / 26P
   SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2671 NSC-LM2671 Datasheet
610Kb / 24P
   SIMPLE SWITCHER짰 Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
Texas Instruments
Texas Instruments
LM2671 TI-LM2671 Datasheet
1Mb / 31P
[Old version datasheet]   LM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage
LM2671 TI-LM2671 Datasheet
1Mb / 31P
[Old version datasheet]   LM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage
National Instruments Corporation
National Instruments Co...
LM2671 NI-LM2671 Datasheet
641Kb / 24P
   SIMPLE SWITCHER짰 Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
More results

Similar Description - LM2671

ManufacturerPart No.DatasheetDescription
Texas Instruments
Texas Instruments
LM2671M-ADJ TI1-LM2671M-ADJ Datasheet
1Mb / 31P
[Old version datasheet]   LM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator
National Semiconductor (TI)
National Semiconductor ...
LM2674 NSC-LM2674 Datasheet
440Kb / 26P
   SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator
LM22671Q NSC-LM22671Q Datasheet
429Kb / 18P
   500 mA SIMPLE SWITCHER짰, Step-Down Voltage Regulator with Features
LM22671 NSC-LM22671 Datasheet
426Kb / 18P
   500 mA SIMPLE SWITCHER짰, Step-Down Voltage Regulator with Features
Texas Instruments
Texas Instruments
LM2674M TI-LM2674M Datasheet
1Mb / 31P
[Old version datasheet]   LM2674 SIMPLE SWITCHER Power Converter High Efficiency 500 mA Step-Down Voltage Regulator
LM2671M-ADJ TI-LM2671M-ADJ Datasheet
1Mb / 31P
[Old version datasheet]   LM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage
LM2671MX-33 TI-LM2671MX-33 Datasheet
1Mb / 31P
[Old version datasheet]   LM2671 SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage
National Semiconductor (TI)
National Semiconductor ...
LM2671 NSC-LM2671 Datasheet
972Kb / 26P
   SIMPLE SWITCHER Power Converter High Efficiency 500mA Step-Down Voltage Regulator with Features
LM2672 NSC-LM2672 Datasheet
415Kb / 25P
   SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator with Features
Texas Instruments
Texas Instruments
LM2674 TI1-LM2674 Datasheet
1Mb / 32P
[Old version datasheet]   LM2674 SIMPLE SWITCHER짰 Power Converter High Efficiency 500 mA Step-Down Voltage Regulator
More results


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  27  28  29  30  31  32  33  34  35  36 


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