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参数资料
| 型号： | TPS54227DDA |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 4.7 A SWITCHING REGULATOR, 700 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | PLASTIC, MS-012BA, SOP-8 |
| 文件页数： | 19/19页 |
| 文件大小： | 323K |
| 代理商： | TPS54227DDA |
0
200
400
600
800
1000
1200
I
-Supply
Current
-
A
C
m
-50
0
50
100
150
T - Junction Temperature - °C
J
0
2
4
6
8
10
12
14
Ivccsdn
-
Shutdown
Current
-
A
m
V
= 12 V
IN
-50
0
50
100
150
T - Junction Temperature - °C
J
0
0.5
1
1.5
2
I - Output Current - A
O
V = 1.8 V
I
1
1.025
1.05
1.075
1.1
V
-Output
V
oltage
-
V
O
V = 1.2 V
I
V = 5 V
I
0
10
20
30
40
50
60
70
80
90
100
EN
-
Input
Current
-
A
m
0
5
10
15
20
V - Input Voltage - V
I
V
= 18 V
IN
100
s/div
m
Vout (50 mV/div)
Iout (1 A/div)
1.04
1.05
1.06
1.07
1.08
I
= 0 A
O
0
5
10
15
20
V - Input Voltage - V
I
V
-Output
V
oltage
-
V
O
I
= 1 A
O
SLVSAU2
– MAY 2011
TYPICAL CHARACTERISTICS
Figure 1. VIN CURRENT vs JUNCTION TEMPERATURE
Figure 2. VIN SHUTDOWN CURRENT vs
JUNCTION TEMPERATURE
Figure 3. EN CURRENT vs EN VOLTAGE
Figure 4. 1.05-V OUTPUT VOLTAGE vs OUTPUT CURRENT
Figure 5. 1.05-V OUTPUT VOLTAGE vs INPUT VOLTAGE
Figure 6. 1.05-V, 50-mA to 2-A LOAD TRANSIENT
RESPONSE
Copyright
2011, Texas Instruments Incorporated
9
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