TPS62020
TPS62021
TPS62026
SLVS076C – JUNE 2003 – REVISED DECEMBER 2004
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TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
η
η
I
Q
f
s
r
DS(on)
r
DS(on)
Efficiency
Efficiency
No load quiescent current
Switching frequency
P-Channel switch r
DS(on)
N-Channel rectifier switch r
DS(on
)
Load transient response
PWM operation
Power save mode operation
Start-up
vs Load current
vs Input voltage
vs Input voltage
vs Input voltage
vs Input voltage
vs Input voltage
1, 2, 3
4
5, 6
7
8
9
10
11
12
13
EFFICIENCY
vs
LOAD CURRENT
100
95
90
85
80
Efficiency − %
75
70
65
60
55
50
45
40
0
0.01
0.10
1
10
I
L
− Load Current − mA
100
1000
V
I
= 3.6 V
Mode = Low
Efficiency − %
V
I
= 5 V
Mode = Low
V
O
= 3.3 V
100
95
90
85
80
75
70
65
60
55
50
45
40
0
0.01
V
I
= 3.6 V
V
I
= 5 V
V
O
= 1.8 V
V
I
= 2.7 V
EFFICIENCY
vs
LOAD CURRENT
Mode = Low
V
I
= 3.6 V
Mode = High
0.10
1
10
I
L
− Load Current − mA
100
1000
Figure 1.
Figure 2.
6
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