công cụ tìm kiếm bảng dữ liệu linh kiện điện tử
  Vietnamese  ▼
ALLDATASHEET.VN

X  

LM2937IMP-3.3/NOPB bảng dữ liệu(PDF) 7 Page - Texas Instruments

Click here to check the latest version.
tên linh kiện LM2937IMP-3.3/NOPB
Giải thích chi tiết về linh kiện  LM2937-2.5, LM2937-3.3 400mA and 500mA Voltage Regulators
Download  19 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
nhà sản xuất  TI1 [Texas Instruments]
Trang chủ  http://www.ti.com
Logo TI1 - Texas Instruments

LM2937IMP-3.3/NOPB bảng dữ liệu(HTML) 7 Page - Texas Instruments

Back Button LM2937IMP-3.3/NOPB Datasheet HTML 3Page - Texas Instruments LM2937IMP-3.3/NOPB Datasheet HTML 4Page - Texas Instruments LM2937IMP-3.3/NOPB Datasheet HTML 5Page - Texas Instruments LM2937IMP-3.3/NOPB Datasheet HTML 6Page - Texas Instruments LM2937IMP-3.3/NOPB Datasheet HTML 7Page - Texas Instruments LM2937IMP-3.3/NOPB Datasheet HTML 8Page - Texas Instruments LM2937IMP-3.3/NOPB Datasheet HTML 9Page - Texas Instruments LM2937IMP-3.3/NOPB Datasheet HTML 10Page - Texas Instruments LM2937IMP-3.3/NOPB Datasheet HTML 11Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 19 page
background image
LM2937-2.5, LM2937-3.3
www.ti.com
SNVS015E – FEBRUARY 1998 – REVISED APRIL 2013
Typical Application
* Required if the regulator is located more than 3 inches from the power supply filter capacitors.
** Required for stability. Cout must be at least 10 μF (over the full expected operating temperature range) and located
as close as possible to the regulator. The equivalent series resistance, ESR, of this capacitor may be as high as 3
Ω
APPLICATION HINTS
EXTERNAL CAPACITORS
The output capacitor is critical to maintaining regulator stability, and must meet the required conditions for both
ESR (Equivalent Series Resistance) and minimum amount of capacitance.
MINIMUM CAPACITANCE:
The minimum output capacitance required to maintain stability is 10
μF (this value may be increased without
limit). Larger values of output capacitance will give improved transient response.
ESR LIMITS:
The ESR of the output capacitor will cause loop instability if it is too high or too low. The acceptable range of
ESR plotted versus load current is shown in the graph below. It is essential that the output capacitor meet
these requirements, or oscillations can result.
Figure 22. Output Capacitor ESR
Figure 23. ESR Limits
It is important to note that for most capacitors, ESR is specified only at room temperature. However, the designer
must ensure that the ESR will stay inside the limits shown over the entire operating temperature range for the
design.
For aluminum electrolytic capacitors, ESR will increase by about 30X as the temperature is reduced from 25°C to
−40°C. This type of capacitor is not well-suited for low temperature operation.
Solid tantalum capacitors have a more stable ESR over temperature, but are more expensive than aluminum
electrolytics. A cost-effective approach sometimes used is to parallel an aluminum electrolytic with a solid
Tantalum, with the total capacitance split about 75/25% with the Aluminum being the larger value.
If two capacitors are paralleled, the effective ESR is the parallel of the two individual values. The “flatter” ESR of
the Tantalum will keep the effective ESR from rising as quickly at low temperatures.
Copyright © 1998–2013, Texas Instruments Incorporated
Submit Documentation Feedback
7
Product Folder Links: LM2937-2.5 LM2937-3.3


Số phần tương tự - LM2937IMP-3.3/NOPB

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Texas Instruments
LM2937IMP-3.3/NOPB TI1-LM2937IMP-3.3/NOPB Datasheet
1Mb / 19P
[Old version datasheet]   LM2937-2.5, LM2937-3.3 400mA and 500mA Voltage Regulators
More results

Mô tả tương tự - LM2937IMP-3.3/NOPB

nhà sản xuấttên linh kiệnbảng dữ liệuGiải thích chi tiết về linh kiện
logo
Texas Instruments
LM2937ES-3.3 TI1-LM2937ES-3.3 Datasheet
1Mb / 19P
[Old version datasheet]   LM2937-2.5, LM2937-3.3 400mA and 500mA Voltage Regulators
LM2937-2.5 TI-LM2937-2.5_15 Datasheet
1Mb / 27P
[Old version datasheet]   LM2937 2.5-V and 3.3-V 400-mA and 500-mA Voltage Regulators
logo
National Semiconductor ...
LM2937-25 NSC-LM2937-25 Datasheet
293Kb / 10P
   400mA and 500mA Voltage Regulators
LM2937-2.5 NSC-LM2937-2.5 Datasheet
309Kb / 10P
   400mA and 500mA Voltage Regulators
logo
Texas Instruments
LM2937ET-5.0 TI1-LM2937ET-5.0 Datasheet
1Mb / 24P
[Old version datasheet]   LM2937 500 mA Low Dropout Regulator
logo
Zetex Semiconductors
ZMR ZETEX-ZMR_07 Datasheet
245Kb / 12P
   Fixed 2.5, 3.3 and 5 volt miniature voltage regulators
ZMR ZETEX-ZMR_08 Datasheet
252Kb / 12P
   Fixed 2.5, 3.3 and 5 volt miniature voltage regulators
logo
Diodes Incorporated
ZMR DIODES-ZMR Datasheet
187Kb / 7P
   FIXED 2.5, 3.3 AND 5 VOLT MINIATURE VOLTAGE REGULATORS
ZMR250 DIODES-ZMR250 Datasheet
107Kb / 11P
   FIXED 2.5, 3.3 AND 5 VOLT MINIATURE VOLTAGE REGULATORS
logo
List of Unclassifed Man...
LND4808 ETC1-LND4808 Datasheet
119Kb / 4P
   400mA Low Dropout Voltage Regulators
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19


bảng dữ liệu tải về

Go To PDF Page


Link URL




Chính sách bảo mật
ALLDATASHEET.VN
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không?  [ DONATE ] 

Alldatasheet là   |   Quảng cáo   |   Liên lạc với chúng tôi   |   Chính sách bảo mật   |   Trao đổi link   |   Tìm kiếm theo nhà sản xuất
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
Family Site : ic2ic.com  |   icmetro.com