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TPS62402DRC Datasheet(PDF) 8 Page - Texas Instruments

No. de pieza TPS62402DRC
Descripción Electrónicos  2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package
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Fabricante Electrónico  TI [Texas Instruments]
Página de inicio  http://www.ti.com
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TPS62402DRC Datasheet(HTML) 8 Page - Texas Instruments

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0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
100
1000
PowerSaveMode
MODE/DATA =0
ForcedPWMMode
MODE/DATA =1
I
mA
OUT
V
=2.7V
IN
V
=3.6V
IN
V
=5V
IN
V
=2.7V
IN
V
=3.6V
IN
V
=5V
IN
V
=1.1V
OUT1
0
10
20
30
40
50
60
70
80
90
100
0.01
0.1
1
10
100
1000
PowerSaveMode
MODE/DATA =0
ForcedPWMMode
MODE/DATA =1
V
=1.575V
OUT1
I
mA
OUT
V
=2.7V
IN
V
=5V
IN
V
=3.6V
IN
V
=2.7V
IN
V
=3.6V
IN
V
=5V
IN
TPS62400
,, TPS62401
TPS62402, TPS62403
SLVS681D – JUNE 2006 – REVISED FEBRUARY 2007
TYPICAL CHARACTERISTICS (continued)
FIGURE NO.
TPS62401 DEF1_pin Function for Output Voltage Selection
27
Typical Operation VIN = 3.6V, VOUT1 = 1.575V, VOUT2 = 1.8V
28
Typical Operation VIN = 3.6V, VOUT1 = 1.8V, VOUT2 = 3.0V
29
Typical Operation VIN = 3.6V, VOUT1 = 1.2V, VOUT2 = 1.2V
30
VOUT1 Change With EasyScale
31
Dynamic Voltage Positioning
32
Soft Start
33
EasyScale™ Protocol Overview
34
EasyScale Protocol Without Acknowledge
35
EasyScale Protocol Including Acknowledge
36
EasyScale – Bit Coding
37
MODE/DATA PIN: Mode Selection
38
MODE/DATA Pin: Power Save Mode / Interface Communication
39
Typical Application Circuit 1.5V / 2.85V Adjustable Outputs, low PFM
40
voltage ripple optimized
Typical Application Circuit 1.5V / 2.85V Adjustable Outputs
41
TPS62401 Fixed 1.575V/1.8 V Outputs, low PFM voltage ripple optimized
42
TPS62401 Fixed 1.1V/1.8 V Outputs, low PFM voltage ripple optimized
43
TPS62401 Fixed 1.575V/1.8 V Outputs
44
Dynamic Voltage Scaling on Vout1 Controlled by DEF_1 pin
45
TPS62403 1.575V/2.8V Outputs
46
Layout Diagram
47
PCB Layout
48
EFFICIENCY TPS62401 VOUT1 = 1.1V
EFFICIENCY TPS62401 VOUT1 = 1.575V
Figure 1.
Figure 2.
8
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