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TPS54428DRCR Datasheet(PDF) 7 Page - Texas Instruments

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Part # TPS54428DRCR
Description  4-A Synchronous Step-Down Converter
Download  29 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54428DRCR Datasheet(HTML) 7 Page - Texas Instruments

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0.75
0.755
0.76
0.765
0.77
0.775
0.78
-50
0
50
100
150
T - Junction Temperature - °C
J
0
100
200
300
400
500
600
700
800
0
1
2
3
4
I - Output Current - A
O
V
= 1.8 V
O
V
= 1.05 V
O
V
= 3.3 V
O
400
450
500
550
600
650
700
750
800
850
900
0
5
10
15
20
V - Input Voltage - V
I
V
= 5 V
O
V
= 2.5 V
O
V
= 1.8 V
O
V
= 1.5 V
O
V
= 1.2 V
O
V
= 1.05 V
O
V
= 3.3 V
O
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
I - Output Current - A
O
V
= 3.3 V
O
V
= 2.5 V
O
V
= 1.8 V
O
40
50
60
70
80
90
100
V
= 1.8 V
O
V
= 2.5 V
O
V
= 3.3 V
O
1
2
3
4
5
I - Output Current - A
O
0
1.04
1.05
1.06
1.07
1.08
0
5
10
15
20
V - Input Voltage - V
I
I
= 10 mA
O
I
= 1 A
O
7
TPS54428
www.ti.com
SLVSB42D – NOVEMBER 2011 – REVISED JANUARY 2016
Product Folder Links: TPS54428
Submit Documentation Feedback
Copyright © 2011–2016, Texas Instruments Incorporated
Typical Characteristics (continued)
VIN = 12 V, TA = 25°C (unless otherwise noted)
Figure 5. 1.05-V Output Voltage vs VIN Voltage
Figure 6. Efficiency vs Output Current
Figure 7. Light Load Efficiency vs Output Current
Figure 8. Switching Frequency vs Input Voltage
Figure 9. Switching Frequency vs Output Current
Figure 10. VFB Voltage vs Junction Temperature


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