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TPS62674YFDT Fiches technique(PDF) 10 Page - Texas Instruments

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No de pièce TPS62674YFDT
Description  500-mA/650-mA, 6-MHz High-Efficiency Step-Down Converter in Low Profile Chip Scale Packaging (Height < 0.4mm)
Download  35 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

TPS62674YFDT Fiches technique(HTML) 10 Page - Texas Instruments

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background image
0
10
20
30
40
50
60
70
80
90
100
Always PFM
Always PWM
V
= 1.8 V
O
PFM to PWM
Mode Change
PWM to PFM
Mode Change
The switching mode changes
at these borders
2.7
3
3.3
3.6
3.9
4.2
4.5
4.8
V - Input Voltage - V
I
0.1
1
10
100
1000
I
-LoadCurrent-mA
O
1.235
1.247
1.260
1.273
1.285
V
=1.26V
PWMOperation
O
V =2.7V
I
V =4.5V
I
V =3.6V
I
1.764
1.782
1.800
1.818
1.836
0.1
1
10
100
1000
I
-LoadCurrent-mA
O
V
=1.8V
PFM/PWMOperation
O
V =3.6V
I
V =4.5V
I
V =2.7V
I
1.176
1.188
1.2
1.212
1.224
0.1
1
10
100
1000
I
-LoadCurrent-mA
O
V
=1.2V
PFM/PWMOperation
O
V =3.6V
I
V =4.5V
I
V =2.7V
I
0
2
4
6
8
10
12
14
16
18
20
22
0
20
40
60
80
100 120 140 160 180 200
I
-LoadCurrent-mA
O
V
=1.2V
O
V =3.6V
I
V =4.5V
I
V =2.7V
I
0
20
40
60
80
100 120 140 160 180 200
I
-LoadCurrent-mA
O
0
2
4
6
8
10
12
14
16
18
20
V =4.5V
I
V =2.7V
I
V =3.6V
I
V
=1.8V
O
TPS62671, TPS62672, TPS62674
TPS62675, TPS626751, TPS626765, TPS62679
SLVS952F – APRIL 2010 – REVISED JUNE 2014
www.ti.com
Typical Characteristics (continued)
Figure 7. Peak-To-Peak Output Ripple Voltage vs Load
Figure 8. Peak-To-Peak Output Ripple Voltage vs Load
Current
Current
Figure 9. DC Output Voltage vs Load Current
Figure 10. DC Output Voltage vs Load Current
Figure 11. DC Output Voltage vs Load Current
Figure 12. PFM/PWM Boundaries
10
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Copyright © 2010–2014, Texas Instruments Incorporated
Product Folder Links: TPS62671 TPS62672 TPS62674 TPS62675 TPS626751 TPS626765 TPS62679


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