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TPS54332 Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce TPS54332
Description  3.5A, 28V, 1MHz, STEP DOWN DC/DC CONVERTER WITH Eco-mode
Download  26 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54332 Fiches technique(HTML) 5 Page - Texas Instruments

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background image
Error
Amplifier
RQ
S
Boot
Charge
Boot
UVLO
Current
Sense
Oscillator
Frequency
Shift
Gate
Drive
Logic
Slope
Compensation
PWM
Latch
PWM
Comparator
ECO-MODE
MinimumClamp
™
Maximum
Clamp
Voltage
Reference
Discharge
Logic
VSENSE
COMP
PH
BOOT
VIN
GND
Thermal
Shutdown
EN
Enable
Comparator
Shutdown
Logic
Shutdown
Enable
Threshold
S
1.25V
0.8V
80mW
165 C
2.1V
12 A/V
SS
Shutdown
VSENSE
1 A
m
3 A
m
gm=92 A/V
DCgain=800V/V
BW=2.7MHz
m
2kW
2 A
m
980
990
1000
1010
1020
-50
-25
0
25
50
75
100
125
150
T -JunctionTemperature-°C
J
VIN=12V
T -JunctionTemperature-°C
J
60
70
80
90
100
110
120
-50
-25
0
25
50
75
100
125
150
VIN=12V
0
2
4
6
8
3
8
13
18
23
28
V -InputVoltage-V
I
T =150°C
J
T =-40°C
J
T =25°C
J
EN=0V
TPS54332
www.ti.com
SLVS875B – JANUARY 2009 – REVISED FEBRUARY 2012
FUNCTIONAL BLOCK DIAGRAM
TYPICAL CHARACTERISTICS
CHARACTERIZATION CURVES
ON RESISTANCE
SHUTDOWN QUIESCENT CURRENT
SWITCHING FREQUENCY
vs
vs
vs
JUNCTION TEMPERATURE
INPUT VOLTAGE
JUNCTION TEMPERATURE
Figure 1.
Figure 2.
Figure 3.
Copyright © 2009–2012, Texas Instruments Incorporated
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