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LM2743 Datasheet(PDF) 9 Page - Texas Instruments

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No. de pieza LM2743
Descripción Electrónicos  Low Voltage N-Channel MOSFET Synchronous Buck Regulator Controller
Download  37 Pages
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

LM2743 Datasheet(HTML) 9 Page - Texas Instruments

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background image
EA
PWM
ILIM
40 PA
10 PA
SYNCHRONOUS
DRIVER LOGIC
OV
UV
10 Ps
DELAY
0.71V
0.434V
SHUT DOWN
LOGIC
UVLO
SD
VCC
SGND
FB
EAO
BOOT
HG
LG
ISEN
PWGD
SS/TRACK
PGND
90 PA
SSDONE
Soft-Start
Comparator
+ Logic
+
-
+
-
VREF = 0.6V
REF
PWM LOGIC
CLOCK &
RAMP
FREQ
PGND
1VPP
100 mV/div
100 Ps/DIV
5V/div
VOUT
VIN
100mV/div
100 Ps/DIV
5V/div
VIN
VOUT
LM2743
www.ti.com
SNVS276F – MAY 2004 – REVISED JANUARY 2012
Typical Performance Characteristics (continued)
Line Transient Response (VIN = 3V to 9V)
Line Transient Response (VIN = 9V to 3V)
VCC = 3.3V, VOUT = 1.2V
VCC = 3.3V, VOUT = 1.2V
IOUT = 2A, fSW = 300 kHz
IOUT = 2A, fSW = 300 kHz
BLOCK DIAGRAM
Copyright © 2004–2012, Texas Instruments Incorporated
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