Datasheet

PERFORMANCE GRAPHS
3.24
3.26
3.28
3.3
3.32
3.34
3.36
3.38
3.4
0 1 2 3 4 5
I
L
− Load Current − A
− Output Voltage − %V
O
T
A
= 25°C
V
I
= 5 V
65
70
75
80
85
90
95
100
0 1 2 3 4 5
V
I
= 4 V
V
I
= 6 V
I
O
− Output Current − A
Efficiency − %
V
I
= 5 V
−40
−20
0
20
40
60
100 1 k 10 k 100 k 1 M
−90
−45
0
45
90
135
f − Frequency − Hz
Gain − dB
Phase − Degrees
Gain
Phase
T
A
= 25°C
V
I
2 V/div
V
O
2 V/div
V
PWRGD
5 V/div
1 ms/div
V
O
(AC)
10 mV/div
V
I
= 5 V
I
O
= 3 A
400 ns/div
V
I
= 5 V
40 µs/div
V
O
(AC)
50 mV/div
I
O
2 A/div
25
35
45
55
65
75
85
95
105
115
125
0 1 2 3 4
− Ambient Temperature −
I
L
− Load Current − A
C
°
T
A
Safe Operating Area
†
†
Safe operating area is applicable to the test board conditions
listed in the dissipation rating table section of this data sheet.
V
I
= 3.3 V
V
I
= 5 V
TPS54310-EP
SLVS818 – APRIL 2008 ..................................................................................................................................................................................................... www.ti.com
EFFICIENCY OUTPUT VOLTAGE
vs vs
OUTPUT CURRENT LOAD CURRENT LOOP RESPONSE
Figure 13. Figure 14. Figure 15.
OUTPUT RIPPLE VOLTAGE LOAD TRANSIENT RESPONSE SLOW-START TIMING
Figure 16. Figure 17. Figure 18.
AMBIENT TEMPERATURE
vs
LOAD CURRENT
Figure 19.
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