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TPS542951RSAT Datasheet(PDF) 11 Page - Texas Instruments

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Part # TPS542951RSAT
Description  2A/3A Dual Channel Synchronous Step-Down Switcher with Integrated FET
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS542951RSAT Datasheet(HTML) 11 Page - Texas Instruments

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background image
400
450
500
550
600
650
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750
800
0
5
10
15
20
Input Voltage (V)
VOUT2 = 1.5 V
IOUT2 = 1 A
G017
0
100
200
300
400
500
600
700
800
900
0.01
0.1
1
10
Output Current (A)
VOUT1 = 3.3 V
VIN1, VIN2 = 12 V
G018
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
10
Output Current (A)
VIN = 5 V
VIN = 12 V
VIN = 18 V
G015
400
450
500
550
600
650
700
750
800
0
5
10
15
20
Input Voltage (V)
VOUT1 = 3.3 V
IOUT1 = 1 A
G016
0
10
20
30
40
50
60
70
80
90
100
0.001
0.01
0.1
1
10
Output Current (A)
VIN = 6 V
VIN = 12 V
VIN = 18 V
G013
0
10
20
30
40
50
60
70
80
90
100
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Output Current (A)
VIN = 5 V
VIN = 12 V
VIN = 18 V
G014
TPS542951
www.ti.com
SLVSBI4B – JULY 2012 – REVISED OCTOBER 2013
TYPICAL CHARACTERISTICS (continued)
One output is enabled unless otherwise noted. VIN = VIN1 or VIN2. VINx = 12 V, TA = 25°C (unless otherwise noted).
Figure 13. VO1 = 3.3V, Light Load Efficiency vs Output
Figure 14. VO2 = 1.5V, Efficiency vs Output Current
Current
Figure 15. VO2 = 1.5V, Light Load Efficiency vs Output
Figure 16. VO1 = 3.3V, SW-frequency vs
Current
Input Voltage (PWP)
Figure 17. VO2 = 1.5V, SW-frequency vs
Figure 18. VO1 = 3.3V, SW-frequency vs
Input Voltage (PWP)
Output Current (PWP)
Copyright © 2012–2013, Texas Instruments Incorporated
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