поискавой системы для электроныых деталей
  Russian  ▼
ALLDATASHEETRU.COM

X  

LM2734ZQMKE датащи(PDF) 8 Page - Texas Instruments

номер детали LM2734ZQMKE
подробное описание детали  Thin SOT 1-A Load Step-Down DC-DC Regulator
Download  36 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
Logo TI1 - Texas Instruments

LM2734ZQMKE датащи(HTML) 8 Page - Texas Instruments

Back Button LM2734ZQMKE Datasheet HTML 4Page - Texas Instruments LM2734ZQMKE Datasheet HTML 5Page - Texas Instruments LM2734ZQMKE Datasheet HTML 6Page - Texas Instruments LM2734ZQMKE Datasheet HTML 7Page - Texas Instruments LM2734ZQMKE Datasheet HTML 8Page - Texas Instruments LM2734ZQMKE Datasheet HTML 9Page - Texas Instruments LM2734ZQMKE Datasheet HTML 10Page - Texas Instruments LM2734ZQMKE Datasheet HTML 11Page - Texas Instruments LM2734ZQMKE Datasheet HTML 12Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 36 page
background image
LM2734
BOOST
SW
GND
L
D1
D2
COUT
CBOOST
VOUT
CIN
VIN
VIN
VBOOST
0
0
VIN
VD
TON
t
t
Inductor
Current
D = TON/TSW
VSW
TOFF
TSW
IL
IPK
SW
Voltage
LM2734Z, LM2734Z-Q1
SNVS334F – JANUARY 2005 – REVISED JANUARY 2016
www.ti.com
Feature Description (continued)
regulator and compared to the output of the error amplifier, which is proportional to the difference between the
feedback voltage and VREF. When the PWM comparator output goes high, the output switch turns off until the
next switching cycle begins. During the switch OFF-time, inductor current discharges through Schottky diode D1,
which forces the SW pin to swing below ground by the forward voltage (VD) of the catch diode. The regulator
loop adjusts the duty cycle (D) to maintain a constant output voltage.
Figure 7. LM2734Z Waveforms of SW Pin Voltage and Inductor Current
7.3.2 Boost Function
Capacitor CBOOST and diode D2 in Figure 8 are used to generate a voltage VBOOST. VBOOST - VSW is the gate drive
voltage to the internal NMOS control switch. To properly drive the internal NMOS switch during its ON-time,
VBOOST needs to be at least 1.6 V greater than VSW. Although the LM2734Z operates with this minimum voltage,
it may not have sufficient gate drive to supply large values of output current. Therefore, TI recommends that
VBOOST be greater than 2.5 V above VSW for best efficiency. VBOOST – VSW must not exceed the maximum
operating limit of 5.5 V.
5.5 V > VBOOST – VSW > 2.5 V for best performance.
Figure 8. VOUT Charges CBOOST
When the LM2734Z starts up, internal circuitry from the BOOST pin supplies a maximum of 20 mA to CBOOST.
This current charges CBOOST to a voltage sufficient to turn the switch on. The BOOST pin continues to source
current to CBOOST until the voltage at the feedback pin is greater than 0.76 V.
8
Submit Documentation Feedback
Copyright © 2005–2016, Texas Instruments Incorporated
Product Folder Links: LM2734Z LM2734Z-Q1


Аналогичный номер детали - LM2734ZQMKE

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
LM2734ZQ TI1-LM2734ZQ Datasheet
1Mb / 29P
[Old version datasheet]   Thin SOT23 1A Load Step-Down DC-DC Regulator
More results

Аналогичное описание - LM2734ZQMKE

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
LM2734 TI-LM2734_15 Datasheet
1Mb / 37P
[Old version datasheet]   LM2734 Thin SOT 1-A Load Step-Down DC-DC Regulator
LM2734 TI1-LM2734 Datasheet
1Mb / 31P
[Old version datasheet]   LM2734 Thin SOT 1A Load Step-Down DC-DC Regulator
LM2736YMKX TI-LM2736YMKX Datasheet
1Mb / 31P
[Old version datasheet]   LM2736 Thin SOT 750mA Load Step-Down DC-DC Regulator
LM2736XMK TI-LM2736XMK Datasheet
1Mb / 31P
[Old version datasheet]   LM2736 Thin SOT 750mA Load Step-Down DC-DC Regulator
LM2736YMK TI-LM2736YMK Datasheet
1Mb / 31P
[Old version datasheet]   LM2736 Thin SOT 750mA Load Step-Down DC-DC Regulator
LM2736XMK TI1-LM2736XMK Datasheet
1Mb / 31P
[Old version datasheet]   LM2736 Thin SOT 750mA Load Step-Down DC-DC Regulator
LM2736 TI-LM2736_15 Datasheet
1Mb / 36P
[Old version datasheet]   LM2736 Thin SOT 750 mA Load Step-Down DC-DC Regulator
LM2734Z TI-LM2734Z_15 Datasheet
1Mb / 32P
[Old version datasheet]   LM2734Z/LM2734ZQ Thin SOT 1A Load Step-Down DC-DC Regulator
logo
National Semiconductor ...
LM2736 NSC-LM2736 Datasheet
444Kb / 22P
   Thin SOT23 750mA Load Step-Down DC-DC Regulator
LM2734 NSC-LM2734 Datasheet
459Kb / 22P
   Thin SOT23 1A Load Step-Down DC-DC 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


датащи скачать

Go To PDF Page


ссылки URL




Конфиденциальность
ALLDATASHEETRU.COM
Вашему бизинису помогли Аллдатащит?  [ DONATE ] 

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность   |   обмен ссыками   |   поиск по производителю
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