数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

LM2598S-5.0 数据表(PDF) 11 Page - Texas Instruments

部件名 LM2598S-5.0
功能描述  SIMPLE SWITCHER Power Converter 150-kHz 1-A Step-Down Voltage Regulator, With Features
Download  47 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM2598S-5.0 数据表(HTML) 11 Page - Texas Instruments

Back Button LM2598S-5.0 Datasheet HTML 7Page - Texas Instruments LM2598S-5.0 Datasheet HTML 8Page - Texas Instruments LM2598S-5.0 Datasheet HTML 9Page - Texas Instruments LM2598S-5.0 Datasheet HTML 10Page - Texas Instruments LM2598S-5.0 Datasheet HTML 11Page - Texas Instruments LM2598S-5.0 Datasheet HTML 12Page - Texas Instruments LM2598S-5.0 Datasheet HTML 13Page - Texas Instruments LM2598S-5.0 Datasheet HTML 14Page - Texas Instruments LM2598S-5.0 Datasheet HTML 15Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 47 page
background image
11
LM2598
www.ti.com
SNVS125D – MARCH 1998 – REVISED MAY 2016
Product Folder Links: LM2598
Submit Documentation Feedback
Copyright © 1998–2016, Texas Instruments Incorporated
8 Detailed Description
8.1 Overview
The LM2598 SIMPLE SWITCHER® regulator is an easy-to-use, nonsynchronous, step-down DC-DC converter
with a wide input voltage range up to 40 V. The regulator is capable of delivering up to 1-A DC load current with
excellent line and load regulation. These devices are available in fixed output voltages of 3.3-V, 5-V, 12-V and an
adjustable output version. The family requires few external components, and the pin arrangement was designed
for simple, optimum PCB layout.
8.2 Functional Block Diagram
8.3 Feature Description
8.3.1 SHUTDOWN and Soft-Start
The circuit shown in Figure 20 is a standard buck regulator with 24-VIN, 12-VOUT, 280-mA load, and using a
0.068-μF soft-start capacitor. The photo in Figure 18 and Figure 19 show the effects of Soft-start on the output
voltage, the input current, with, and without a soft-start capacitor. Figure 18 also shows the error flag output
going high when the output voltage reaches 95% of the nominal output voltage. The reduced input current
required at start-up is very evident when comparing the two photos. The Soft-start feature reduces the start-up
current from 1 A down to 240 mA, and delays and slows down the output voltage rise time.
This reduction in start-up current is useful in situations where the input power source is limited in the amount of
current it can deliver. In some applications Soft-start can be used to replace undervoltage lockout or delayed
start-up functions.
If a very slow output voltage ramp is desired, the Soft-start capacitor can be made much larger. Many seconds or
even minutes are possible.
If only the shutdown feature is required, the Soft-start capacitor can be eliminated.


类似零件编号 - LM2598S-5.0

制造商部件名数据表功能描述
logo
National Semiconductor ...
LM2598S-5.0 NSC-LM2598S-5.0 Datasheet
847Kb / 33P
   SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
More results

类似说明 - LM2598S-5.0

制造商部件名数据表功能描述
logo
National Semiconductor ...
LM2597 NSC-LM2597 Datasheet
900Kb / 34P
   SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
LM2590HV NSC-LM2590HV Datasheet
752Kb / 20P
   SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
LM2598 NSC-LM2598 Datasheet
847Kb / 33P
   SIMPLE SWITCHER Power Converter 150 kHz 1A Step-Down Voltage Regulator, with Features
LM2593HV NSC-LM2593HV Datasheet
753Kb / 21P
   SIMPLE SWITCHER Power Converter 150 kHz 2A Step-Down Voltage Regulator, with Features
LM2599 NSC-LM2599 Datasheet
812Kb / 31P
   SIMPLE SWITCHER Power Converter 150 kHz 3A Step-Down Voltage Regulator, with Features
logo
Texas Instruments
LM2595 TI1-LM2595_17 Datasheet
4Mb / 43P
[Old version datasheet]   SIMPLE SWITCHER Power Converter 150-kHz 1-A Step-Down Voltage Regulator
LM2597HVM-ADJ TI-LM2597HVM-ADJ Datasheet
2Mb / 48P
[Old version datasheet]   LM2597/LM2597HV SIMPLE SWITCHER Power Converter 150 kHz 0.5A Step-Down Voltage Regulator, with Features
LM2593HV TI1-LM2593HV Datasheet
1Mb / 31P
[Old version datasheet]   SIMPLE SWITCHER Power Converter 150-kHz, 2-A Step-Down Voltage Regulator
LM2592HV TI1-LM2592HV Datasheet
2Mb / 31P
[Old version datasheet]   SIMPLE SWITCHER Power Converter 150-kHz 2-A Step-Down Voltage Regulator
LM2594 TI1-LM2594_16 Datasheet
2Mb / 41P
[Old version datasheet]   SIMPLE SWITCHER Power Converter 150-kHz 0.5-A 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 37 38 39 40 41 42 43 44 45 46 47


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
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