Datasheet

0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1000
Efficiency
PowerSaveMode
MODE/DATA =0
ForcedPWMMode
MODE/DATA =1
V =2.7V
IN
V =3.6V
IN
V =2.7V
IN
V =3.6V
IN
V =5V
IN
V =5V
IN
V =1.1V
OUT1
I -mA
OUT
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1000
Efficiency
I -mA
OUT
V =2.7V
IN
V =3.6V
IN
V =5V
IN
PowerSaveMode
MODE/DATA =0
ForcedPWMMode
MODE/DATA =1
V =2.7V
IN
V =3.6V
IN
V =5V
IN
V =1.575V
OUT1
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1000
Efficiency
I -mA
OUT
PowerSaveMode
MODE/DATA =0
ForcedPWMMode
MODE/DATA =1
V =1.8V
OUT2
V =2.7V
IN
V =3.6V
IN
V =5V
IN
V =2.7V
IN
V =3.6V
IN
V =5V
IN
0
10
20
30
40
50
60
70
80
90
100
0.01 0.1 1 10 100 1000
Efficiency
I -mA
OUT
PowerSaveMode
MODE/DATA =0
ForcedPWMMode
MODE/DATA =1
V =3.6V
IN
V =5V
IN
V =3.3V
OUT2
V =3.6V
IN
V =5V
IN
TPS62420, TPS62421
SLVS676C –JUNE 2006–REVISED JUNE 2010 www.ti.com
TYPICAL CHARACTERISTICS (continued)
FIGURE NO.
Soft Start 27
EasyScale Protocol Overview 28
EasyScale Protocol Without Acknowledge 29
EasyScale Protocol Including Acknowledge 30
EasyScale – Bit Coding 31
MODE/DATA PIN: Mode Selection 32
MODE/DATA Pin: Power Save Mode / Interface Communication 33
Typical Application Circuit 1.5V / 2.85V Adjustable Outputs 34, 35
Layout Diagram 36
PCB Layout 37
EFFICIENCY V
OUT1
= 1.1V EFFICIENCY V
OUT1
= 1.575V
Figure 1. Figure 2.
EFFICIENCY V
OUT2
= 1.8V EFFICIENCY V
OUT2
= 3.3V
Figure 3. Figure 4.
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