전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

LM3678 데이터시트(PDF) 3 Page - Texas Instruments

부품명 LM3678
상세설명  High-Performance Miniature 1.5-A Step-Down DC-DC Converter for Handheld Applications
Download  18 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LM3678 데이터시트(HTML) 3 Page - Texas Instruments

  LM3678_14 Datasheet HTML 1Page - Texas Instruments LM3678_14 Datasheet HTML 2Page - Texas Instruments LM3678_14 Datasheet HTML 3Page - Texas Instruments LM3678_14 Datasheet HTML 4Page - Texas Instruments LM3678_14 Datasheet HTML 5Page - Texas Instruments LM3678_14 Datasheet HTML 6Page - Texas Instruments LM3678_14 Datasheet HTML 7Page - Texas Instruments LM3678_14 Datasheet HTML 8Page - Texas Instruments LM3678_14 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 18 page
background image
1
2
3
4
7
8
9
10
GND
GND
SW
VDD
FB
EN
PWM
PGOOD
5
6
VDD
VSELECT
D
A
P
GND
FB
SW
VDD
VDD
9
8
7
6
1
2
3
4
5
GND
EN
PWM
PGOOD
VSELECT
10
D
A
P
LM3678
www.ti.com
SNVS464B – APRIL 2008 – REVISED JANUARY 2009
Connection Diagram and Package Mark Information
Figure 4. Top View
Figure 5. Bottom View
Table 1. Pin Descriptions
Pin
Name
Description
No.
1
GND
Power Ground pin.
2
GND
Analog Ground Pin
3
SW
Switching node connection to the internal PFET switch and NFET synchronous rectifier
4
VDD
Analog supply input. Connect to the input filter capacitor (see Figure 1).
5
VDD
Power supply Input. Connect to the input filter capacitor (see Figure 1).
6
VSELECT
Output voltage select (For example)
VSELECT = LOW, VOUT = 0.8V
VSELECT = HIGH , VOUT = 1.2V
7
PGOOD
Power Good Flag. This common drain logic output is pulled to ground when the output voltage is not within
±7.5% of regulation.
8
PWM
Connect PWM pin to VIN.
9
EN
Enable pin. The device is in shutdown mode when voltage to this pin is <0.4V and enabled when >1.0V. Do not
leave this pin floating.
10
FB
Feedback analog input. Connect directly to the output filter capacitor for fixed voltage versions.
DAP
DAP
Die Attach Pad, connect the DAP to GND on PCB layout to enhance thermal performance. It should not be used
as a primary ground connection.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)
VIN Pin: Voltage to GND
−0.2V to 6.0V
EN Pin
−0.2V to 6.0V
FB, SW Pin
(GND
−0.2V) to (VIN + 0.2V)
Continuous Power Dissipation(2)
Internally Limited
Junction Temperature (TJ-MAX)
+150°C
Storage Temperature Range
−65°C to +150°C
Maximum Lead Temperature (Soldering, 10 seconds)
260°C
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings are conditions under
which the device operates. Operating Ratings do not imply specified performance limits. For specified performance limits and associated
test conditions, see the Electrical Characteristics.
(2)
Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at TJ= 150°C (typ) and
disengages at TJ= 130°C (typ).
Copyright © 2008–2009, Texas Instruments Incorporated
Submit Documentation Feedback
3
Product Folder Links: LM3678


유사한 부품 번호 - LM3678_14

제조업체부품명데이터시트상세설명
logo
Texas Instruments
LM3678 TI-LM3678_15 Datasheet
1Mb / 19P
[Old version datasheet]   High-Performance Miniature 1.5-A Step-Down DC-DC Converter for Handheld Applications
More results

유사한 설명 - LM3678_14

제조업체부품명데이터시트상세설명
logo
Texas Instruments
LM3678 TI-LM3678_15 Datasheet
1Mb / 19P
[Old version datasheet]   High-Performance Miniature 1.5-A Step-Down DC-DC Converter for Handheld Applications
logo
National Semiconductor ...
LM3678 NSC-LM3678 Datasheet
1Mb / 14P
   High-Performance, Miniature 1.5A Step-Down DC-DC Converter for Handheld Applications
logo
Allegro MicroSystems
SPI-8002TW ALLEGRO-SPI-8002TW Datasheet
444Kb / 10P
   Dual 1.5 A, DC/DC Step-Down Converter
SPI-8001TW ALLEGRO-SPI-8001TW Datasheet
427Kb / 10P
   Dual 1.5 A, DC/DC Step-Down Converter
logo
National Semiconductor ...
LM3206 NSC-LM3206 Datasheet
1Mb / 16P
   650mA Miniature, Step-Down DC-DC Converter for Portable Applications
LM3691 NSC-LM3691 Datasheet
2Mb / 18P
   High Accuracy, Miniature 1A, Step-Down DC-DC Converter for Portable Applications
logo
Texas Instruments
LM3691 TI1-LM3691_15 Datasheet
2Mb / 29P
[Old version datasheet]   High-Accuracy, Miniature 1-A Step-Down DC-DC Converter
LM3691 TI-LM3691_15 Datasheet
2Mb / 24P
[Old version datasheet]   LM3691 High Accuracy, Miniature 1A, Step-Down DC-DC Converter for Portable Applications
logo
Allegro MicroSystems
SI-8033JD ALLEGRO-SI-8033JD Datasheet
546Kb / 10P
   Step-Down to 3.3 V, 1.5 A, DC/DC Converter
SI-8120JD ALLEGRO-SI-8120JD Datasheet
574Kb / 10P
   Step-Down to 12.0 V, 1.5 A, DC/DC Converter
More results


Html Pages

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


데이터시트 다운로드

Go To PDF Page


링크 URL




개인정보취급방침
ALLDATASHEET.CO.KR
ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크교환   |   제조사별 검색
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