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TPS62229DDCRG4 Datasheet(PDF) 6 Page - Texas Instruments

Part # TPS62229DDCRG4
Description  400-mA, 1.25-MHz, HIGH-EFFICIENCY, STEP-DOWN CONVERTER IN THIN-SOT23
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
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TPS62229DDCRG4 Datasheet(HTML) 6 Page - Texas Instruments

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TYPICAL CHARACTERISTICS
40
45
50
55
60
65
70
75
80
85
90
95
100
0.01
0.1
1
10
100
1000
VO = 3.3 V,
L = 4.7
µH,
CO = 10 µF
VI = 3.7 V
VI = 5 V
IL - Load Current - mA
40
45
50
55
60
65
70
75
80
85
90
95
100
0.01
0.1
1
10
100
1000
VO = 1.8 V,
L = 4.7
µH,
CO = 22 µF
VI = 2.7 V
VI = 5 V
IL - Load Current - mA
VI = 3.7 V
TPS62220, TPS62221, TPS62222
TPS62223, TPS62224, TPS62227
TPS62228, TPS62229
SLVS491D – SEPTEMBER 2003 – REVISED MARCH 2006
Table of Graphs
FIGURE
Figure 1,
vs Load current
Figure 2,
η
Efficiency
Figure 3
vs Input voltage
Figure 4
IQ
No load quiescent current
vs Input voltage
Figure 5
fs
Switching frequency
vs Temperature
Figure 6
Vo
Output voltage
vs Output current
Figure 7
rds(on) - P-channel switch,
vs Input voltage
Figure 8
rds(on)
rds(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.
6
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