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参数资料
| 型号： | TPS5420MDREPG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 5.2 A SWITCHING REGULATOR, 600 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件页数： | 9/23页 |
| 文件大小： | 658K |
| 代理商： | TPS5420MDREPG4 |
www.ti.com
PERFORMANCE GRAPHS
The performance graphs in Figure 13 through Figure 19 are applicable to the circuit in Figure 11. TA = 25°C
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0
0.5
1
1.5
2
2.5
3
I
-OutputCurrent- A
O
OutputRegulation-%
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0
0.5
1
1.5
2
2.5
3
V -InputVoltage-V
I
OutputRegulation-%
I = 0 A
O
I
=1 A
O
I
=2 A
O
75
80
85
90
95
100
0
0.5
1
1.5
2
2.5
3
I
-OutputCurrent- A
O
Efficiency-%
V =15V
I
V =12V
I
V =18V
I
V =19.8V
I
V =10.8V
I
t-Time=200 s/Div
I
A/Div
OUT =500m
V
OUT =50mV/Div(ACCoupled)
PH=5V/Div
V
=100mV/Div(ACCoupled)
IN
t -Time-1 s/Div
m
PH=5V/Div
V
=20mV/Div(ACCoupled)
OUT
t -Time-1 s/Div
m
t-Time=5ms/Div
V
=2V/Div
OUT
V
=10V/Div
IN
t-Time=5ms/Div
V
=2V/Div
OUT
ENA =2V/Div
SLVS717 – DECEMBER 2006
(unless otherwise specified).
Figure 13. Efficiency
Figure 14. Output Regulation %
Figure 15. Input Regulation %
vs Output Current
vs Input Voltage
Figure 16. Input Voltage Ripple
Figure 17. Output Voltage Ripple
Figure 18. Transient Response, IO
and PH Node, IO = 3 A
Step 0.5 to 1.5 A
Figure 19. Startup Waveform,
Figure 20. Startup Waveform,
VIN and VOUT
ENA and VOUT
17
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