Datasheet

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100
0.01 0.1 1 10 100 1000
Efficiency%
PowerSaveMode
MODE/DATA =0
ForcedPWMMode
MODE/DATA =1
I mA
OUT
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
V =1.1V
OUT1
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 =1.575V
OUT1
I mA
OUT
V =2.7V
IN
V =5V
IN
V =3.6V
IN
V =2.7V
IN
V =3.6V
IN
V =5V
IN
TPS62400, TPS62401
TPS62402, TPS62403, TPS62404
SLVS681E –JUNE 2006–REVISED APRIL 2010 www.ti.com
TYPICAL CHARACTERISTICS (continued)
FIGURE NO.
TPS62401 DEF1_pin Function for Output Voltage Selection 28
Typical Operation V
IN
= 3.6V, V
OUT1
= 1.575V, VOUT2 = 1.8V 29
Typical Operation V
IN
= 3.6V, V
OUT1
= 1.8V, V
OUT2
= 3.0V 30
Typical Operation V
IN
= 3.6V, V
OUT1
= 1.2V, V
OUT2
= 1.2V 31
V
OUT1
Change With EasyScale 32
Dynamic Voltage Positioning 33
Soft Start 34
EasyScale™ Protocol Overview 35
EasyScale Protocol Without Acknowledge 36
EasyScale Protocol Including Acknowledge 37
EasyScale – Bit Coding 38
MODE/DATA PIN: Mode Selection 39
MODE/DATA Pin: Power Save Mode / Interface Communication 40
Typical Application Circuit 1.5V / 2.85V Adjustable Outputs, low PFM 41
voltage ripple optimized
Typical Application Circuit 1.5V / 2.85V Adjustable Outputs 42
TPS62401 Fixed 1.575V/1.8 V Outputs, low PFM voltage ripple optimized 43
TPS62401 Fixed 1.1V/1.8 V Outputs, low PFM voltage ripple optimized 44
TPS62401 Fixed 1.575V/1.8 V Outputs 45
Dynamic Voltage Scaling on Vout1 Controlled by DEF_1 pin 46
TPS62403 1.575V/2.8V Outputs 47
Layout Diagram 48
PCB Layout 49
EFFICIENCY TPS62401 VOUT1 = 1.1V EFFICIENCY TPS62401 VOUT1 = 1.575V
Figure 1. Figure 2.
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