Moteur de recherche de fiches techniques de composants électroniques
  French  ▼
ALLDATASHEET.FR

X  

LM34919 Fiches technique(PDF) 7 Page - Texas Instruments

Click here to check the latest version.
No de pièce LM34919
Description  Ultra-Small 40-V 600-mA Constant On-Time Buck Switching Regulator
Download  21 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM34919 Fiches technique(HTML) 7 Page - Texas Instruments

Back Button LM34919 Datasheet HTML 3Page - Texas Instruments LM34919 Datasheet HTML 4Page - Texas Instruments LM34919 Datasheet HTML 5Page - Texas Instruments LM34919 Datasheet HTML 6Page - Texas Instruments LM34919 Datasheet HTML 7Page - Texas Instruments LM34919 Datasheet HTML 8Page - Texas Instruments LM34919 Datasheet HTML 9Page - Texas Instruments LM34919 Datasheet HTML 10Page - Texas Instruments LM34919 Datasheet HTML 11Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 7 / 21 page
background image
UVLO
VIN
VCC
SW Pin
Inductor
Current
SS Pin
t2
VOUT
7.0V
2.5V
t1
LM34919
www.ti.com
SNOSAY2D – MAY 2007 – REVISED JUNE 2008
Figure 3. Start Up Sequence
FUNCTIONAL DESCRIPTION
The LM34919 Step Down Switching Regulator features all the functions needed to implement a low cost, efficient
buck bias power converter capable of supplying at least 0.6A to the load. This high voltage regulator contains an
N-Channel buck switch, is easy to implement, and is available in micro SMD package. The regulator's operation
is based on a constant on-time control scheme, where the on-time is determined by VIN. This feature allows the
operating frequency to remain relatively constant with load and input voltage variations. The feedback control
requires no loop compensation resulting in very fast load transient response. The valley current limit detection
circuit, internally set at 0.64A, holds the buck switch off until the high current level subsides. This scheme
protects against excessively high current if the output is short-circuited when VIN is high.
The LM34919 can be applied in numerous applications to efficiently regulate down higher voltages. Additional
features include: Thermal shutdown, VCC under-voltage lockout, gate drive under-voltage lockout, and maximum
duty cycle limiter.
Copyright © 2007–2008, Texas Instruments Incorporated
Submit Documentation Feedback
7
Product Folder Links: LM34919


Numéro de pièce similaire - LM34919

FabricantNo de pièceFiches techniqueDescription
logo
National Semiconductor ...
LM34919 NSC-LM34919 Datasheet
369Kb / 18P
   40V, 600 mA Step Down COT Switching Regulator
LM34919 NSC-LM34919 Datasheet
387Kb / 18P
   Ultra Small 40V, 600 mA Constant On-Time Buck Switching Regulator
logo
Texas Instruments
LM34919 TI1-LM34919 Datasheet
1Mb / 21P
[Old version datasheet]   Ultra-Small 40-V 600-mA Constant On-Time Buck Switching Regulator
logo
National Semiconductor ...
LM34919B NSC-LM34919B Datasheet
497Kb / 20P
   Ultra Small 40V, 600 mA Constant On-Time Buck Switching Regulator
LM34919B NSC-LM34919B Datasheet
647Kb / 12P
   Evaluation Board provides the design engineer with a fully functional
More results

Description similaire - LM34919

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
LM34919B TI-LM34919B_15 Datasheet
1Mb / 27P
[Old version datasheet]   Ultra-Small 40-V 600-mA Constant On-Time Buck Switching Regulator
LM34919 TI1-LM34919_15 Datasheet
1Mb / 21P
[Old version datasheet]   Ultra-Small 40-V 600-mA Constant On-Time Buck Switching Regulator
logo
National Semiconductor ...
LM34919B NSC-LM34919B Datasheet
497Kb / 20P
   Ultra Small 40V, 600 mA Constant On-Time Buck Switching Regulator
LM34919 NSC-LM34919_08 Datasheet
387Kb / 18P
   Ultra Small 40V, 600 mA Constant On-Time Buck Switching Regulator
logo
Texas Instruments
LM34919C-Q1 TI1-LM34919C-Q1 Datasheet
1Mb / 29P
[Old version datasheet]   LM34919C-Q1 Ultra Small 50V, 600 mA Constant On-Time Buck Switching Regulator
LM34923 TI1-LM34923 Datasheet
1Mb / 26P
[Old version datasheet]   80-V 600-mA Constant On-Time Buck Switching Regulator
LM34923 TI1-LM34923_14 Datasheet
1Mb / 26P
[Old version datasheet]   80V, 600 mA Constant On-Time Buck Switching Regulator
LM5006 TI1-LM5006_14 Datasheet
850Kb / 25P
[Old version datasheet]   80V, 600 mA Constant On-Time Buck Switching Regulator
LM5006 TI-LM5006_15 Datasheet
1Mb / 27P
[Old version datasheet]   LM5006 80V, 600 mA Constant On-Time Buck Switching Regulator
LM5017 TI-LM5017_15 Datasheet
1Mb / 31P
[Old version datasheet]   100-V, 600-mA Constant On-Time Synchronous Buck 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


Fiches technique Télécharger

Go To PDF Page


Lien URL




Politique de confidentialité
ALLDATASHEET.FR
ALLDATASHEET vous a-t-il été utile ?  [ DONATE ] 

À propos de Alldatasheet   |   Publicité   |   Contactez-nous   |   Politique de confidentialité   |   Echange de liens   |   Fabricants
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