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LM27403 Datasheet(PDF) 8 Page - Texas Instruments

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No. de pieza LM27403
Descripción Electrónicos  Synchronous Buck Controller with Temperature-Compensated, Inductor-DCR-Based Overcurrent Protection and Programmable Thermal Shutdown
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI - Texas Instruments

LM27403 Datasheet(HTML) 8 Page - Texas Instruments

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UVLO/EN
VIN
2.7V
VIN UVLO
4.73V
THERMAL
SHUTDOWN
VIN
VDD
2.7V
PLL & VCO
SYNC
FADJ
ENABLE
CLOCK
DIGITAL
SOFT-START
COUNTER
0.6V
REFERENCE
& LOGIC
SS/TRACK
VDD
3A
FB
RAMP
VIN
PWM
ADAPTIVE DRIVER,
LEVEL SHIFTER
and
FAULT LOGIC
CS+
PGOOD
CS±
HG
LG
SW
CBOOT
GND
VDD
699mV
678mV
546mV
522mV
COMP
VIN
SS
OV
UV
HICCUP LOGIC
RESET
OCP
Comparator
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
+
EA
+
-
VIN
1.8A
546mV
+
-
VDD
UVLO
GND
KFF = 0.11
+
-
TEMPERATURE
MONITOR
VIN
D+
OTP
-
RS
SWITCH = CLOSED
when VEN > 1.15V
VIN
8.7A
D±
3720 ppm/°C
Thermal
Coefficient
ICS
IOTP
ICS
IOTP
1.15V
0.985V
1.15V
1.07V
LM27403
SNVS896 A – AUGUST 2013 – REVISED SEPTEMBER 2013
www.ti.com
FUNCTIONAL BLOCK DIAGRAM
Figure 1. Block Diagram
8
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Copyright © 2013, Texas Instruments Incorporated
Product Folder Links: LM27403


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