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| 型號： | TPS54328DDA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012BA, SOP-8 |
| 文件頁數(shù)： | 2/19頁 |
| 文件大小： | 497K |
| 代理商： | TPS54328DDA |
EN = 10 V / div
SS = 5 V / div
V = 500 mV / div
O
Time = 2 msec / div
50
60
70
80
90
100
0
0.5
1.0
1.5
2.0
2.5
3.0
I
- Output Current - A
OUT
Ef
ficiency
-
%
V = 5 V
IN
V = 12 V
IN
400
450
500
550
600
650
700
750
800
850
900
0
5
10
15
20
V - Input Voltage - V
IN
F
-Switching
Frequency
-
kHz
S
V = 1.05 V
O
V = 3.3 V
O
V = 1.8 V
O
0
20
40
60
80
100
0.001
0.01
0.1
1
10
I
- Output Current - A
OUT
Ef
ficiency
-
%
V = 12 V
IN
V = 5 V
IN
V = 50 mV / div (-950 mV dc offset)
O
SW = 10 V / div
Time = 1 sec / div
400
450
500
550
600
650
700
750
800
850
900
0
0.5
1
1.5
2
2.5
3
I - Output Current - A
O
F
-Switching
Frequency
-
kHz
S
V = 1.05 V
O
V = 3.3 V
O
V = 1.8 V
O
V = 12 V
IN
SLVSAN2 – NOVEMBER 2010
www.ti.com
TYPICAL CHARACTERISTICS (continued)
Figure 7. START-UP WAVE FORM
Figure 8. EFFICIENCY vs OUTPUT CURRENT
Figure 9. LIGHT LOAD EFFICIENCY vs OUTPUT CURRENT
Figure 10. SWITCHING FREQUENCY vs INPUT VOLTAGE
Figure 11. SWITCHING FREQUENCY vs OUTPUT
Figure 12. VOLTAGE RIPPLE AT OUTPUT (IO = 3 A)
CURRENT
10
Copyright 2010, Texas Instruments Incorporated
Product Folder Link(s) :TPS54328
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