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參數資料
| 型號： | TPS54810PWPRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 12 A SWITCHING REGULATOR, 762 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | GREEN, PLASTIC, HTSSOP-28 |
| 文件頁數： | 4/21頁 |
| 文件大小： | 631K |
| 代理商： | TPS54810PWPRG4 |
TPS54810
SLVS420B MARCH 2002 R EVISED FEBRUARY 2005
www.ti.com
12
PERFORMANCE GRAPHS (FROM APPLICATION CIRCUIT SHOWN IN FIGURE 9)
Figure 12
IO Output Current A
Efficiency
%
EFFICIENCY
vs
OUTPUT CURRENT
50
55
60
65
70
75
80
85
90
95
100
02
46
8
10
VI = 5 V
VO = 1.8 V
fs = 700 kHz
Figure 13
0.997
0.998
0.999
1
1.001
1.002
1.003
02
46
8
10
IO Output Current A
Load
Regulation
LOAD REGULATION
vs
OUTPUT CURRENT
VI = 5 V
VO = 1.8 V
TA = 25°C
fs = 700 kHz
Figure 14
0.999
0.9992
0.9994
0.9996
0.9998
1
1.0002
1.0004
1.0006
1.0008
1.001
4.5
4.7
4.9
5.1
5.3
5.5
5.7
5.9
0 A
4 A
8 A
VI Input Voltage V
Line
Regulation
LINE REGULATION
vs
INPUT VOLTAGE
VI = 5 V
VO = 1.8 V
TA = 25°C
fs = 700 kHz
Figure 15
25
35
45
55
65
75
85
95
105
115
125
0
123
4
Ambient
Temperature
AMBIENT TEMPERATURE
vs
OUTPUT CURRENT (1)
IO Output Current A
C°
T
A
56
7
8
VI = 5 V
TJ = 25°C
fs = 700 kHz
Figure 16
t Time 1 s/div
Output
Ripple
V
oltage
10
mV/div
OUTPUT RIPPLE VOLTAGE
VI = 5 V
VO = 1.8 V
IO = 6 A
fs = 700 kHz
Figure 17
t Time 20 s/div
Output
Voltage
100
mV/div
TRANSIENT RESPONSE
V O
Output
Current
2
A/div
I O
VI = 5 V
2 A to 6.5 A
Figure 18
4.0 ms/div
Input
V
oltage
2
V/div
SLOW-START TIMING
VI = 5 V,
0.04 F
Slow-start Cap
Output
Voltage
2
V/div
(1) Safe operating area is applicable to the test board conditions in the Dissipation Ratings
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