Datasheet

0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1 k
I
L
− Load Current − mA
Efficiency − %
V
I
= 3.5 V
V
I
= 5 V
SYNC = L
V
O
= 3.3 V
T
A
= 25°C
V
I
= 10 V
V
I
= 7.2 V
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1 k
I
L
− Load Current − mA
Efficiency − %
V
I
= 5.5 V
SYNC = H
V
O
= 5 V
T
A
= 25°C
V
I
= 7.2 V
V
I
= 6.5 V
V
I
= 10 V
V
I
= 8.4 V
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1 k
I
L
− Load Current − mA
Efficiency − %
V
I
= 2.7 V
SYNC = H
V
O
= 1.5 V
T
A
= 25°C
V
I
= 5 V
V
I
= 3.3 V
V
I
= 10 V
V
I
= 7.2 V
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1 k
I
L
− Load Current − mA
Efficiency − %
V
I
= 5.5 V
V
I
= 6.5 V
V
I
= 7.2 V
V
I
= 8.4 V
V
I
= 10 V
SYNC = L
V
O
= 5 V
T
A
= 25°C
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1 k
I
L
− Load Current − mA
Efficiency − %
V
I
= 2.7 V
V
I
= 3.3 V
V
I
= 5 V
SYNC = L
V
O
= 1.5 V
T
A
= 25°C
V
I
= 7.2 V
V
I
= 10 V
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1 k
I
L
− Load Current − mA
Efficiency − %
V
I
= 2.7 V
V
I
= 3.3 V
V
I
= 5 V
SYNC = L
V
O
= 1.8 V
T
A
= 25°C
V
I
= 7.2 V
V
I
= 10 V
TPS62052, TPS62054
TPS62056, TPS62050, TPS62051
SLVS432E –SEPTEMBER 2002–REVISED JUNE 2011 www.ti.com
TYPICAL CHARACTERISTICS
Table 1. TABLE OF GRAPHS
FIGURE
Efficiency vs load current 1 - 8
Switching frequency vs temperature 9
Output voltage ripple in SKIP mode 10
Output voltage ripple in PWM mode 11
Line transient response in PWM mode 12
Load transient 13
V
(switch)
and I
L
(inductor current) in skip mode 14
Start-up timing 15
TPS62050 TPS62052 TPS62054
EFFICIENCY EFFICIENCY EFFICIENCY
vs vs vs
LOAD CURRENT LOAD CURRENT LOAD CURRENT
Figure 2. Figure 3. Figure 4.
TPS62056 TPS62050 TPS62052
EFFICIENCY EFFICIENCY EFFICIENCY
vs vs vs
LOAD CURRENT LOAD CURRENT LOAD CURRENT
Figure 5. Figure 6. Figure 7.
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