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TPS54339 Datasheet(PDF) 9 Page - Texas Instruments

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Part # TPS54339
Description  4.5 V to 23 V Input, 3-A Synchronous Step-Down SWIFT Converter
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS54339 Datasheet(HTML) 9 Page - Texas Instruments

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0.750
0.755
0.760
0.765
0.770
0.775
0.780
±50
0
50
100
150
T
J ± Junction Temperature (ƒC)
C009
I
OUT = 1 A
Vo (10 mV/div)
SW (5 V/div)
400 ns/div
Vo = 1.05 V
400
450
500
550
600
650
700
750
800
850
900
0
5
10
15
20
25
V
IN ± Input Voltage (V)
C007
V
O = 1.05 V
V
O = 1.2 V
V
O = 1.8 V
V
O = 3.3 V
V
O = 5 V
0
100
200
300
400
500
600
700
800
0.0
0.5
1.0
1.5
2.0
2.5
3.0
I
OUT ± Output Current (A)
C008
V
O = 1.05 V
V
O = 1.8 V
V
O = 3.3 V
40
50
60
70
80
90
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
I
OUT ± Output Current (A)
C006
V
O = 1.8 V
V
O = 3.3 V
V
O = 5 V
EN (10 V/div)
VREG5 (5 V/div)
400 us/div
Vout (0.5 V/div)
TPS54339
www.ti.com
SLVSBT2 – JANUARY 2013
TYPICAL CHARACTERISTICS
VIN = 12 V, TA = 25°C (unless otherwise noted).
Figure 7. START-UP WAVE FORM
Figure 8. EFFICIENCY vs OUTPUT CURRENT
Figure 9. SWITCHING FREQUENCY vs
Figure 10. SWITCHING FREQUENCY vs OUTPUT CURRENT
INPUT VOLTAGE (IO = 1 A)
Figure 11. VFB VOLTAGE vs JUNCTION
Figure 12. VOLTAGE RIPPLE AT OUTPUT (IO = 3A)
TEMPERATURE (IO = 1 A)
Copyright © 2013, Texas Instruments Incorporated
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