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TPS62400 Fiches technique(PDF) 8 Page - Texas Instruments

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No de pièce TPS62400
Description  2.25MHz 400mA/600mA Dual Step-Down Converter In Small 3x3mm QFN Package
Download  39 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPS62400 Fiches technique(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
TPS62403
SLVS681C – JUNE 2006 – REVISED DECEMBER 2006
TYPICAL CHARACTERISTICS (continued)
FIGURE NO.
Typical Operation VIN = 3.6V, VOUT1 = 1.8V, VOUT2 = 3.0V
27
Typical Operation VIN = 3.6V, VOUT1 = 1.2V, VOUT2 = 1.2V
28
VOUT1 Change With EasyScale
29
Dynamic Voltage Positioning
30
Soft Start
31
EasyScale™ Protocol Overview
32
EasyScale Protocol Without Acknowledge
33
EasyScale Protocol Including Acknowledge
34
EasyScale – Bit Coding
35
MODE/DATA PIN: Mode Selection
36
MODE/DATA Pin: Power Save Mode / Interface Communication
37
Typical Application Circuit 1.5V / 2.85V Adjustable Outputs, low PFM
38
voltage ripple optimized
Typical Application Circuit 1.5V / 2.85V Adjustable Outputs
39
TPS62401 Fixed 1.575V/1.8 V Outputs, low PFM voltage ripple optimized
40
TPS62401 Fixed 1.1V/1.8 V Outputs, low PFM voltage ripple optimized
41
TPS62401 Fixed 1.575V/1.8 V Outputs
42
Dynamic Voltage Scaling on Vout1 Controlled by DEF_1 pin
43
TPS62403 1.575V/2.8V Outputs
44
Layout Diagram
45
PCB Layout
46
EFFICIENCY TPS62401 VOUT1 = 1.1V
EFFICIENCY TPS62401 VOUT1 = 1.575V
Figure 1.
Figure 2.
8
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