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TPS62404QDRCQ1 Datasheet(PDF) 8 Page - Texas Instruments

Part # TPS62404QDRCQ1
Description  2.25-MHz 400-mA/600-mA DUAL STEP-DOWN CONVERTER
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62404QDRCQ1 Datasheet(HTML) 8 Page - Texas Instruments

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background image
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-Q1, TPS62401-Q1
TPS62402-Q1, TPS62403-Q1
TPS62404-Q1
SLVSA67 – FEBRUARY 2010
www.ti.com
TYPICAL CHARACTERISTICS (continued)
FIGURE NO.
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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Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s) :TPS62404-Q1


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