Datasheet

EN = 2 V / div
Vout = 1 V / div
PWRGD = 2 V / div
Time = 2 msec / div
Vout = 10 mV / div (ac coupled)
PH = 2 V / div
Time = 500 nsec / div
Vout = 50 mV / div (ac coupled)
Iout = 2 A / div (1.5 A to 4.5 A load step)
Time = 200 usec / div
Vin = 2 V / div
Vout = 1 V / div
PWRGD = 2 V / div
Time = 2 msec / div
40
50
60
70
80
90
0
10
20
30
100
Efficiency - %
0
1
4
5
6
Output Current - A
2 3
Vin = 5 V
Vin = 3 V
Vin = 3.3 V
Vin = 5 V
0.01 0.1 1 10
Output Current - A
0
10
20
30
40
50
60
70
80
90
100
Efficiency - %
TPS54618
SLVSAE9D –NOVEMBER 2010–REVISED DECEMBER 2013 www.ti.com
EFFICIENCY EFFICIENCY
vs vs
LOAD CURRENT LOAD CURRENT
Figure 39. Figure 40.
TRANSIENT RESPONSE, 1.5 A STEP POWER UP VOUT, VIN
Figure 41. Figure 42.
POWER UP VOUT, EN OUTPUT RIPPLE, 3 A
Figure 43. Figure 44.
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