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

X  

LM20146 Fiches technique(PDF) 2 Page - Texas Instruments

Click here to check the latest version.
No de pièce LM20146
Description  Adjustable Frequency Synchronous Buck Regulator
Download  29 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

LM20146 Fiches technique(HTML) 2 Page - Texas Instruments

  LM20146 Datasheet HTML 1Page - Texas Instruments LM20146 Datasheet HTML 2Page - Texas Instruments LM20146 Datasheet HTML 3Page - Texas Instruments LM20146 Datasheet HTML 4Page - Texas Instruments LM20146 Datasheet HTML 5Page - Texas Instruments LM20146 Datasheet HTML 6Page - Texas Instruments LM20146 Datasheet HTML 7Page - Texas Instruments LM20146 Datasheet HTML 8Page - Texas Instruments LM20146 Datasheet HTML 9Page - Texas Instruments Next Button
Zoom Inzoom in Zoom Outzoom out
 2 / 29 page
background image
FB
PGOOD
COMP
NC
PVIN
PVIN
SW
SS/TRK
AVIN
VCC
EN
PGND
PGND
SW
AGND
RT
EP
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LM20146
SNVS563C – FEBRUARY 2008 – REVISED APRIL 2013
www.ti.com
Connection Diagram
Figure 1. Top View
16-Pin HTSSOP
See PWP Package
PIN DESCRIPTIONS
Pin #
Name
Description
1
SS/TRK
Soft-Start or Tracking control input. An internal 5 µA current source charges an external capacitor to set the
Soft-Start ramp rate. If driven by a external source less than 800 mV, this pin overrides the internal reference
that sets the output voltage. If left open, an internal 1ms Soft-Start ramp is activated.
2
FB
Feedback input to the error amplifier from the regulated output. This pin is connected to the inverting input of
the internal transconductance error amplifier. An 800 mV reference connected to the non-inverting input of the
error amplifier sets the closed loop regulation voltage at the FB pin.
3
PGOOD
Power good output signal. Open drain output indicating the output voltage is regulating within tolerance. A
pull-up resistor of 10 k
Ω to 100 kΩ is recommend for most applications.
4
COMP
External compensation pin. Connect a resistor and capacitor to this pin to compensate the device.
5
NC
Connect this pin to GND to ensure proper operation
6,7
PVIN
Input voltage to the power switches inside the device. These pins should be connected together at the device.
A low ESR capacitor should be placed near these pins to stabilize the input voltage.
8,9
SW
Switch pin. The PWM output of the internal power switches.
10,11
PGND
Power ground pin for the internal power switches.
12
EN
Precision enable input for the device. An external voltage divider can be used to set the device turn-on
threshold. If not used the EN pin should be connected to PVIN.
13
VCC
Internal 2.7V sub-regulator. This pin should be bypassed with a 1 µF ceramic capacitor.
14
AVIN
Analog input supply that generates the internal bias. Must be connected to PVIN through a low pass RC filter.
15
AGND
Quiet analog ground for the internal bias circuitry.
16
RT
Frequency adjust pin. Connecting a resistor on this pin to ground will set the oscillator frequency.
EP
Exposed Pad
Exposed metal pad on the underside of the package with a weak electrical connection to ground. It is
recommended to connect this pad to the PC board ground plane in order to improve heat dissipation.
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.
2
Submit Documentation Feedback
Copyright © 2008–2013, Texas Instruments Incorporated
Product Folder Links: LM20146


Numéro de pièce similaire - LM20146

FabricantNo de pièceFiches techniqueDescription
logo
National Semiconductor ...
LM20146 NSC-LM20146 Datasheet
522Kb / 22P
   6A, Adjustable Frequency Synchronous Buck Regulator
logo
Texas Instruments
LM20146 TI1-LM20146 Datasheet
1Mb / 29P
[Old version datasheet]   6A, Adjustable Frequency Synchronous Buck Regulator
logo
National Semiconductor ...
LM20146MH NSC-LM20146MH Datasheet
522Kb / 22P
   6A, Adjustable Frequency Synchronous Buck Regulator
LM20146MHE NSC-LM20146MHE Datasheet
522Kb / 22P
   6A, Adjustable Frequency Synchronous Buck Regulator
LM20146MHX NSC-LM20146MHX Datasheet
522Kb / 22P
   6A, Adjustable Frequency Synchronous Buck Regulator
More results

Description similaire - LM20146

FabricantNo de pièceFiches techniqueDescription
logo
Texas Instruments
LM20146 TI1-LM20146_14 Datasheet
1Mb / 29P
[Old version datasheet]   6A, Adjustable Frequency Synchronous Buck Regulator
LM21305 TI1-LM21305_14 Datasheet
1Mb / 34P
[Old version datasheet]   5A Adjustable Frequency Synchronous Buck Regulator
LM21305 TI-LM21305_15 Datasheet
1Mb / 33P
[Old version datasheet]   5A Adjustable Frequency Synchronous Buck Regulator
logo
National Semiconductor ...
LM20146 NSC-LM20146 Datasheet
522Kb / 22P
   6A, Adjustable Frequency Synchronous Buck Regulator
LM21305 NSC-LM21305_11 Datasheet
1Mb / 24P
   5A Adjustable Frequency Synchronous Buck Regulator
LM20145 NSC-LM20145 Datasheet
692Kb / 22P
   5A, PowerWise짰 Adjustable Frequency Synchronous Buck Regulator
LM20343 NSC-LM20343 Datasheet
546Kb / 20P
   36V, 3A Adjustable Frequency Synchronous Buck Regulator
LM20143 NSC-LM20143 Datasheet
703Kb / 20P
   3A, PowerWise짰 Adjustable Frequency Synchronous Buck Regulator
logo
Texas Instruments
LM20343 TI1-LM20343_14 Datasheet
1Mb / 30P
[Old version datasheet]   36V, 3A Adjustable Frequency Synchronous Buck Regulator
logo
National Semiconductor ...
LM20144 NSC-LM20144_08 Datasheet
835Kb / 20P
   4A, PowerWise짰 Adjustable Frequency 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 22 23 24 25 26 27 28 29


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