Datasheet

TPS62040
TPS62042, TPS62043
TPS62044, TPS62046
SLVS463B − JUNE 2003 − REVISED OCTOBER 2005
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7
Figure 3
40
45
50
55
60
65
70
75
80
85
90
95
100
0 0.01 0.1 1 10 100 1 k 10 k
V
O
= 1.5 V
V
I
= 2.7 V
V
I
= 3.6 V
V
I
= 5 V
Efficiency − %
EFFICIENCY
vs
LOAD CURRENT
I
L
− Load Current − mA
Figure 4
70
75
80
85
90
95
100
2.5 3 3.5 4 4.5 5 5.5 6
V
O
= 1.8 V
MODE = Low
I
L
= 500 mA
I
L
= 1000 mA
I
L
= 1 mA
Efficiency − %
EFFICIENCY
vs
INPUT VOLTAGE
V
I
− Input Voltage − V
Figure 5
5
7
9
11
13
15
17
19
21
23
2.4 2.8 3.2 3.6 4 4.4 4.8 5.2 5.6 6
Quisecent Current −
QUIESCENT CURRENT
vs
INPUT VOLTAGE
V
I
− Input Voltage − V
Aµ
MODE = Low
T
A
= 85°C
T
A
= 25°C
T
A
= −40°C
Figure 6
3
3.5
4
4.5
5
5.5
6
6.5
7
7.5
2.5 3 3.5 4 4.5 5 5.5 6
Quisecent Current −
QUIESCENT CURRENT
vs
INPUT VOLTAGE
V
I
− Input Voltage − V
mA
MODE = High
T
A
= 25°C