Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LM2675 Datasheet(PDF) 17 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part No. LM2675
Description  SIMPLE SWITCHER Power Converter High Efficiency 1A 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)

LM2675 Datasheet(HTML) 17 Page - National Semiconductor (TI)

Back Button LM2675 Datasheet HTML 13Page - National Semiconductor (TI) LM2675 Datasheet HTML 14Page - National Semiconductor (TI) LM2675 Datasheet HTML 15Page - National Semiconductor (TI) LM2675 Datasheet HTML 16Page - National Semiconductor (TI) LM2675 Datasheet HTML 17Page - National Semiconductor (TI) LM2675 Datasheet HTML 18Page - National Semiconductor (TI) LM2675 Datasheet HTML 19Page - National Semiconductor (TI) LM2675 Datasheet HTML 20Page - National Semiconductor (TI) LM2675 Datasheet HTML 21Page - National Semiconductor (TI) Next Button
Zoom Inzoom in Zoom Outzoom out
 17 / 26 page
background image
LM2675 Series Buck Regulator Design Procedure (Fixed Output) (Continued)
LM2675 Series Buck Regulator Design Procedure (Adjustable Output)
PROCEDURE (Adjustable Output Voltage Version)
EXAMPLE (Adjustable Output Voltage Version)
To simplify the buck regulator design procedure, National
Semiconductor is making available computer design software to
be used with the SIMPLE SWITCHER line of switching
regulators. LM267X Made Simple version 6.0 is available for
use on Windows 3.1, NT, or 95 operating systems.
Given:
Given:
V
OUT = Regulated Output Voltage
V
OUT = 20V
V
IN(max) = Maximum Input Voltage
V
IN(max) = 28V
I
LOAD(max) = Maximum Load Current
I
LOAD(max) = 1A
F = Switching Frequency (Fixed at a nominal 260 kHz).
F = Switching Frequency (Fixed at a nominal 260 kHz).
1. Programming Output Voltage (Selecting R
1 and R2,as
shown in Figure 3)
1. Programming Output Voltage (Selecting R
1 and R2,as
shown in Figure 3)
Use the following formula to select the appropriate resistor
values.
Select R
1 to be 1 k
Ω, 1%. Solve for R
2.
where V
REF = 1.21V
Select a value for R
1 between 240
Ω and 1.5 kΩ. The lower
resistor values minimize noise pickup in the sensitive feedback
pin. (For the lowest temperature coefficient and the best stability
with time, use 1% metal film resistors.)
R
2 = 1k (16.53 − 1) = 15.53 k
Ω, closest 1% value is 15.4 kΩ.
R
2 = 15.4 k
Ω.
AVX TPS
Recommended
Voltage
Application Voltage
Rating
+85˚C Rating
3.3
6.3
510
10
20
12
25
15
35
Sprague 594D
Recommended
Voltage
Application Voltage
Rating
+85˚C Rating
2.5
4
3.3
6.3
510
816
12
20
18
25
24
35
29
50
FIGURE 15.
www.national.com
17


Similar Part No. - LM2675

ManufacturerPart No.DatasheetDescription
National Semiconductor (TI)
National Semiconductor ...
LM2675 NSC-LM2675 Datasheet
913Kb / 26P
   SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator
Texas Instruments
Texas Instruments
LM2675 TI-LM2675 Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator
LM2675 TI-LM2675 Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage
LM2675 TI-LM2675 Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage
LM2675 TI-LM2675 Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage
More results

Similar Description - LM2675

ManufacturerPart No.DatasheetDescription
Texas Instruments
Texas Instruments
LM2675M-5 TI1-LM2675M-5 Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator
National Semiconductor (TI)
National Semiconductor ...
LM2675_0506 NSC-LM2675_0506 Datasheet
913Kb / 26P
   SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator
Texas Instruments
Texas Instruments
LM2675MX-5 TI1-LM2675MX-5 Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator
LM2675 TI1-LM2675_14 Datasheet
1Mb / 30P
[Old version datasheet]   SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator
LM2675M-5 TI-LM2675M-5 Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage
LM2675M-ADJ TI-LM2675M-ADJ Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER짰 Power Converter High Efficiency 1A Step-Down Voltage Regulator
LM2675M-33 TI-LM2675M-33 Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage
LM2675MX-ADJ TI-LM2675MX-ADJ Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage
National Semiconductor (TI)
National Semiconductor ...
LM2675EP NSC-LM2675EP Datasheet
511Kb / 25P
   Enhanced Plastic SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator
Texas Instruments
Texas Instruments
LM2675MX-33 TI1-LM2675MX-33 Datasheet
1Mb / 30P
[Old version datasheet]   LM2675 SIMPLE SWITCHER짰 Power Converter High Efficiency 1A 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 


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