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TPS54428DDA Datasheet(PDF) 10 Page - Texas Instruments

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No. de pieza TPS54428DDA
Descripción Electrónicos  4.5V to 18 V Input, 4-A Synchronous Step-Down SWIFT??Converter with Eco-Mode?
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

TPS54428DDA Datasheet(HTML) 10 Page - Texas Instruments

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0.001
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I - Output Current - A
O
V
= 3.3 V
O
V
= 2.5 V
O
V
= 1.8 V
O
400
450
500
550
600
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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
100
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800
0
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I - Output Current - A
O
V
= 1.8 V
O
V
= 1.05 V
O
V
= 3.3 V
O
0.75
0.755
0.76
0.765
0.77
0.775
0.78
-50
0
50
100
150
T - Junction Temperature - °C
J
Vo (10 mV/div)
V = 1.05 V
O
SW (5 V/div)
Vo = 1.5 V
VIN (50 mV/div)
SW (5 V/div)
500 ns/div
TPS54428
SLVSB42A
– NOVEMBER 2011 – REVISED JANUARY 2012
www.ti.com
TYPICAL CHARACTERISTICS (continued)
VIN = 12 V, TA = 25
°C (unless otherwise noted)
Figure 9. LIGHT LOAD EFFICIENCY vs OUTPUT CURRENT
Figure 10. SWITCHING FREQUENCY vs INPUT VOLTAGE
Figure 11. SWITCHING FREQUENCY vs OUTPUT
Figure 12. VFB VOLTAGE vs JUNCTION TEMPERATURE
CURRENT
Figure 13. VOLTAGE RIPPLE vs RIPPLE AT OUTPUT (IO =
Figure 14. VOLTAGE RIPPLE vs RIPPLE AT INPUT (IO =
4A
4A
10
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© 2011–2012, Texas Instruments Incorporated
Product Folder Link(s) :TPS54428


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