Datasheet

TYPICAL CHARACTERISTICS
40
45
50
55
60
65
70
75
80
85
90
95
100
0.01 0.1 1 10 100 1000
V
O
= 3.3 V,
L = 4.7 µH,
C
O
= 10 µF
V
I
= 3.7 V
V
I
= 5 V
Efficency - %
I
L
- Load Current - mA
40
45
50
55
60
65
70
75
80
85
90
95
100
0.01 0.1 1 10 100 1000
V
O
= 1.8 V,
L = 4.7 µH,
C
O
= 22 µF
V
I
= 2.7 V
V
I
= 5 V
Efficency - %
I
L
- Load Current - mA
V
I
= 3.7 V
TPS62220 , , TPS62221 , , TPS62222
TPS62223 , TPS62224 , TPS62225
TPS62227 , TPS62228 , TPS62229
SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009 ....................................................................................................................................... www.ti.com
Table of Graphs
FIGURE
Figure 1 ,
vs Load current Figure 2 ,
η Efficiency
Figure 3
vs Input voltage Figure 4
I
Q
No load quiescent current vs Input voltage Figure 5
f
s
Switching frequency vs Temperature Figure 6
V
o
Output voltage vs Output current Figure 7
r
ds(on)
- P-channel switch, vs Input voltage Figure 8
r
ds(on)
r
ds(on)
- N-Channel rectifier switch vs Input voltage Figure 9
Load transient response Figure 10
PWM mode operation Figure 11
Power-save mode operation Figure 12
Start-up Figure 13
EFFICIENCY EFFICIENCY
vs vs
LOAD CURRENT LOAD CURRENT
Figure 1. Figure 2.
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TPS62229