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

X  

TC2574-5.0VPA Fiches technique(PDF) 4 Page - TelCom Semiconductor, Inc

No de pièce TC2574-5.0VPA
Description  0.5A Step-Down Switching Regulator
Download  25 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  TELCOM [TelCom Semiconductor, Inc]
Site Internet  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC2574-5.0VPA Fiches technique(HTML) 4 Page - TelCom Semiconductor, Inc

  TC2574-5.0VPA Datasheet HTML 1Page - TelCom Semiconductor, Inc TC2574-5.0VPA Datasheet HTML 2Page - TelCom Semiconductor, Inc TC2574-5.0VPA Datasheet HTML 3Page - TelCom Semiconductor, Inc TC2574-5.0VPA Datasheet HTML 4Page - TelCom Semiconductor, Inc TC2574-5.0VPA Datasheet HTML 5Page - TelCom Semiconductor, Inc TC2574-5.0VPA Datasheet HTML 6Page - TelCom Semiconductor, Inc TC2574-5.0VPA Datasheet HTML 7Page - TelCom Semiconductor, Inc TC2574-5.0VPA Datasheet HTML 8Page - TelCom Semiconductor, Inc TC2574-5.0VPA Datasheet HTML 9Page - TelCom Semiconductor, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 25 page
background image
TC2574
4
TC2574-1 1/6/00
0.5A Step-Down Switching Regulator
REPRESENTATIVE BLOCK DIAGRAM AND TYPICAL APPLICATION
PIN DESCRIPTION
Pin No.
Pin No
8-Pin PDIP
16-Pin SOIC
Symbol
Description
512
VIN
This pin is the positive input supply for the TC2574 step–down switching
regulator. In order to minimize voltage transients and to supply the switching
currents needed by the regulator, a suitable input bypass capacitor must be
present (CIN in Figure 1).
7
14
Output
This is the emitter of the internal switch. The saturation voltage VSAT of this
output switch is typically 1.0V. It should be kept in mind that the PCB area
connected to this pin should be kept to a minimum in order to minimize
coupling to sensitive circuitry.
2
4
SIG Gnd
Circuit signal ground pin. See the information about the printed circuit board
layout.
4
6
PWR GND
Circuit power ground pin. See the information about the printed circuit board
layout.
1
3
FB
This pin senses regulated output voltage to complete the feedback loop. The
signal is divided by the internal resistor divider network R2, R1 and applied to
the non–inverting input of the internal error amplifier.In the adjustable version
of the TC2574 switching regulator, this pin is the direct input of the error
amplifier and the resistor network R2, R1 is connected externally to allow
programming of the output voltage.
3
5
ON/OFF
It allows the switching regulator circuit to be shut down using logic level
signals, thus dropping the total input supply current to approximately 80
µA.
The input threshold voltage is typically 1.5V. Applying a voltage above this
value (up to +VIN ) shuts the regulator off. If the voltage applied to this pin is
ower than 1.5 V or if this pin is left open, the regulator will be in the “on”
condition.
TC2574
+
+
3.1V Internal
Regulator
ON/OFF
ON/OFF
Latch
Freq.
Shift
18kHz
Reset
Thermal
Shutdown
3
7
1.0 Amp
Switch
D1
L1
COUT
+VIN
CIN
VOUT
Driver
Output
PWR GND
1
5
2
For Adjustable version
R1 = open, R2 = 0
Load
Feedback
Unregulated
DC Input
SIG GND
R1
R2
1.0k
Current
Limit
Comparator
Fixed gain
Error Amplifier
+
+
+
52kHz
Oscillator
1.235V
Band-Gap
Reference
4
Output
Voltage Versions
3.3V
5.0V
12V
R2 (
Ω)
1.7k
3.1k
8.84k


Numéro de pièce similaire - TC2574-5.0VPA

FabricantNo de pièceFiches techniqueDescription
logo
List of Unclassifed Man...
TC2571 ETC1-TC2571 Datasheet
151Kb / 3P
   1W Low-Cost Packaged PHEMT GaAs Power FETs
logo
Transcom, Inc.
TC2571 TRANSCOM-TC2571 Datasheet
196Kb / 3P
   1 W Low-Cost Packaged PHEMT GaAs Power FETs
logo
TelCom Semiconductor, I...
TC2575 TELCOM-TC2575 Datasheet
168Kb / 25P
   1.0A Step-Down Switching Regulator
TC2575-12.0VAT TELCOM-TC2575-12.0VAT Datasheet
168Kb / 25P
   1.0A Step-Down Switching Regulator
TC2575-3.3VAT TELCOM-TC2575-3.3VAT Datasheet
168Kb / 25P
   1.0A Step-Down Switching Regulator
More results

Description similaire - TC2574-5.0VPA

FabricantNo de pièceFiches techniqueDescription
logo
National Semiconductor ...
LM25007 NSC-LM25007 Datasheet
617Kb / 12P
   42V, 0.5A Step-Down Switching Regulator
logo
Texas Instruments
LM25007 TI1-LM25007_14 Datasheet
933Kb / 17P
[Old version datasheet]   42V, 0.5A Step-Down Switching Regulator
logo
National Semiconductor ...
LM25007 NSC-LM25007_08 Datasheet
282Kb / 12P
   42V, 0.5A Step-Down Switching Regulator
logo
Texas Instruments
LM25007MMX TI-LM25007MMX Datasheet
924Kb / 19P
[Old version datasheet]   LM25007 42V, 0.5A Step-Down Switching Regulator
LM25007 TI-LM25007_15 Datasheet
956Kb / 20P
[Old version datasheet]   LM25007 42V, 0.5A Step-Down Switching Regulator
LM25007MMX TI1-LM25007MMX Datasheet
950Kb / 19P
[Old version datasheet]   LM25007 42V, 0.5A Step-Down Switching Regulator
logo
National Semiconductor ...
LM5574 NSC-LM5574_09 Datasheet
446Kb / 22P
   SIMPLE SWITCHER 75V, 0.5A Step-Down Switching Regulator
logo
Texas Instruments
LM25574 TI1-LM25574_17 Datasheet
970Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER 42V, 0.5A Step-Down Switching Regulator
LM5574 TI1-LM5574_14 Datasheet
911Kb / 28P
[Old version datasheet]   SIMPLE SWITCHER짰 75V, 0.5A Step-Down Switching Regulator
LM25574 TI1-LM25574_14 Datasheet
929Kb / 30P
[Old version datasheet]   SIMPLE SWITCHER짰 42V, 0.5A Step-Down Switching 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


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