TPS54610
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SLVS398F–JUNE 2001–REVISED APRIL 2007
(1)
PERFORMANCE GRAPHS
EFFICIENCY
vs
OUTPUT CURRENT
EFFICIENCY
vs
OUTPUT CURRENT
LOAD REGULATION
vs
OUTPUT CURRENT
100
95
100
95
90
85
80
75
70
65
60
55
50
1.004
1.003
V = 5 V,
I
V
= 3.3 V,
O
90
T
A
= 25°C,
1.002
1.001
f
= 550 kHz
s
85
V
= 3.3 V
O
V
= 2.5 V
O
80
75
70
65
60
55
50
V
= 1.8 V
V = 1.8 V
O
O
1
V
= 1.2 V
O
V
= 1.2 V
O
0.999
V = 3.3 V,
f = 550 kHz,
L = 4.7 µH,
T
V = 5 V,
I
f = 550 kHz,
L = 4.7 µH,
T
I
0.998
0.997
0.996
= 25°C
= 25°C
A
A
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
I
− Output Current − A
I
− Output Current − A
O
O
I
− Output Current − A
O
Figure 13.
Figure 14.
Figure 15.
LINE REGULATION
vs
INPUT VOLTAGE
AMBIENT TEMPERATURE
vs
LOOP RESPONSE
LOAD CURRENT
1.002
125
115
105
95
60
180
135
V = 5 V,
I
V = 5 V,
I
T
J
= 125°C
V
= 3.3 V,
O
V
= 3.3 V,
O
1.0015
f
= 700 kHz
s
I
= 6 A,
O
T
A
= 25°C,
I
= 6 A
T
A
= 25°C,
O
40
20
f
= 550 kHz
s
1.001
1.0005
1
f
= 550 kHz
V = 5 V
I
s
I
= 3 A
85
O
Safe Operating
90
75
(NO TAG)
Area
Phase
65
V = 3.3 V
I
0.9995
Gain
55
No Load
0
45
0
0.999
45
0.9985
0.998
35
−20
25
100
1 k
10 k
100 k
1 M
4
4.5
5
5.5
6
0
1
2
3
4
5
6
7
8
f − Frequency − Hz
I
− Output Current − A
V − Input Voltage − V
I
O
Figure 16.
Figure 17.
Figure 18.
OUTPUT RIPPLE VOLTAGE
LOAD TRANSIENT RESPONSE
SLOW-START TIMING
V = 5 V
,
No Slow-Start Cap
I
V
V
= 5 V,
I
= 3.3 V,
O
6 A, 350 kHz
V
= 5 V,
I
1A to 5A,
t - Time = 2 ms/div
t - Time = 1 ms/div
t - Time = 100 ms/div
Figure 19.
Figure 20.
Figure 21.
(1) Safe operating area is applicable to the test board conditions in the Dissipation Ratings
12
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