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TPS62671 Datasheet(PDF) 7 Page - Texas Instruments

Part # TPS62671
Description  500-mA, 6-MHz HIGH-EFFICIENCY STEP-DOWN CONVERTER IN LOW PROFILE CHIP SCALE PACKAGING (HEIGHT
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS62671 Datasheet(HTML) 7 Page - Texas Instruments

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V
= 1.2 V
O
V = 2.7 V
PFM/PWM Operation
I
V = 4.2 V
PFM/PWM Operation
I
V = 3.6 V
PFM/PWM Operation
I
V = 3.6 V
Forced PWM
I
0.1
1
10
100
1000
I
- Load Current - mA
O
0
10
20
30
40
50
60
70
80
90
100
0.1
1
10
100
1000
I
- Load Current - mA
O
0
10
20
30
40
50
60
70
80
90
100
V
= 1.8 V
O
V = 4.2 V
PFM/PWM Operation
I
V = 2.7 V
PFM/PWM Operation
I
V = 3.6 V
PFM/PWM Operation
I
V = 3.6 V
Forced PWM
I
TPS62671, TPS62674, TPS62675, TPS62679
www.ti.com
SLVS952B
– APRIL 2010 – REVISED JANUARY 2011
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
vs Load current
3, 4, 5, 6
η
Efficiency
vs Input voltage
7
Peak-to-peak output ripple voltage
vs Load current
8, 9
Combined line/load transient
10, 11
response
12, 13, 14, 15, 16,
Load transient response
17, 18, 19, 20, 21
AC load transient response
22, 23
VO
DC output voltage
vs Load current
24, 25, 26
PFM/PWM boundaries
vs Input voltage
27, 28
IQ
Quiescent current
vs Input voltage
29
PWM switching frequency
vs Input voltage
30, 31
fs
PFM switching frequency
vs Input voltage
32
PWM operation
33, 34
Power-save mode operation
35
Start-up
36, 37, 38, 40
Shutdown
39, 41
PSRR
Power supply rejection ratio
vs. Frequency
42
Spurious output noise (PWM mode)
vs. Frequency
43, 44, 46
Spurious output noise (PFM mode)
vs. Frequency
45
Output spectral noise density
vs. Frequency
47
EFFICIENCY
EFFICIENCY
vs
vs
LOAD CURRENT
LOAD CURRENT
Figure 3.
Figure 4.
© 2010–2011, Texas Instruments Incorporated
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Product Folder Link(s): TPS62671 TPS62674 TPS62675 TPS62679


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