Datasheet

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PERFORMANCE GRAPHS
-0.5
-0.4
-0.3
-0.2
-0.1
0.1
0.2
0.3
0.4
0.5
0 2 4 6 8 10 12 14 16
Output Voltage Variation - %
0
2.2 V
2.5 V
3.3 V
4.0 V
I
O
- Output - A
-0.3
-0.25
-0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
0.25
0.3
2
2.5
3
3.5
4
PVIN - V
Output Voltage Deviation - %
I
O
= 0A
I
O
= 7A
I
O
= 14A
f - Frequency - Hz
-20
-40
100 1 k 10 k 100 k 1 M
Gain - dB
0
20
60
40
-60
-60
-120
0
60
180
120
-180
Phase - Degrees
Gain
Phase
Time = 500 nsec/div
PVIN(RIPPLE) = 100 mV/div (ac coupled)
I
O
= 14 A V(PH) = 1 V/div
Time = 500 nsec/div
V
O(RIPPLE)
= 20 mV/div (ac coupled)
I
O
= 14 A V(PH ) = 1 V/div
50
55
60
65
70
75
80
85
90
95
100
0 2 4 6 8 10 12 14 16
Efficiency - %
2.2 V
2.5 V
3.3 V
4.0 V
I
O
- Output - A
Time = 10 msec/div
V
(SS/ENA)
= 1 V/div
V
O
= 1 V/div
Time = 10 msec/div
VIN = 1 V/div
V
O
= 1 V/div
Time = 200 sec/div
V
O
= 50 mV/div (ac coupled)
I
O
= 5 A/div
TPS54010
SLVS509B – MAY 2004 – REVISED JUNE 2005
The performance data for Figure 16 through Figure 24 are for the circuit in Figure 12 . Conditions are PVIN = 2.5
V, VIN = 3.3 V, V
O
= 1.5 V, f
s
= 700 kHz, and I
O
= 7 A, T
A
= 25°C, unless otherwise specified.
MEASURED LOOP RESPONSE LOAD REGULATION LINE REGULATION
vs vs vs
FREQUENCY OUTPUT CURRENT INPUT VOLTAGE
Figure 16. Figure 17. Figure 18.
EFFICIENCY
vs
OUTPUT CURRENT INPUT RIPPLE VOLTAGE OUTPUT VOLTAGE RIPPLE
Figure 19. Figure 20. Figure 21.
START-UP WAVEFORM START-UP WAVEFORM
OUTPUT VOLTAGE RELATIVE OUTPUT VOLTAGE RELATIVE
LOAD TRANSIENT RESPONSE TO ENABLE TO VIN
Figure 22. Figure 23. Figure 24.
17