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TPS54331 Datasheet(PDF) 5 Page - Texas Instruments

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Part # TPS54331
Description  3A, 28V INPUT, STEP DOWN SWIFT??DC/DC CONVERTER WITH Eco-mode
PDF  24 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS54331 Datasheet(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
TYPICAL CHARACTERISTICS
CHARACTERIZATION CURVES
60
65
70
75
80
85
90
95
100
105
110
-50
-25
0
25
50
75
100
125
150
T -JunctionTemperature-°C
J
VIN=12V
0
1
2
3
4
3
8
13
18
23
28
V -InputVoltage-V
I
EN=0V
T =150°C
J
T =25°C
J
T =-40°C
J
550
555
560
565
570
575
580
585
590
-50
-25
0
25
50
75
100
125
150
T -JunctionTemperature-°C
J
VIN=12V
TPS54331
www.ti.com ....................................................................................................................................................................................................... SLVS839 – JULY 2008
FUNCTIONAL BLOCK DIAGRAM
ON RESISTANCE
SHUTDOWN QUIESCENT CURRENT
SWITCHING FREQUENCY
vs
vs
vs
JUNCTION TEMPERATURE
INPUT VOLTAGE
JUNCTION TEMPERATURE
Figure 1.
Figure 2.
Figure 3.
Copyright © 2008, Texas Instruments Incorporated
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