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参数资料
| 型号： | TPS84320RUQT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 3 A SWITCHING REGULATOR, 390 kHz SWITCHING FREQ-MAX, PQCC47 |
| 封装： | 9 X 15 MM, 2.80 MM HEIGHT, GREEN, PLASTIC, QFN-47 |
| 文件页数： | 2/28页 |
| 文件大小： | 903K |
| 代理商： | TPS84320RUQT |
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40
45
50
55
60
65
70
75
80
85
90
95
100
0
0.5
1
1.5
2
2.5
3
Output Current (A)
Efficiency
(%)
VOUT = 5.0 V,fSW = 780 kHz
VOUT = 3.3 V,fSW = 630 kHz
VOUT = 2.5 V,fSW = 480 kHz
VOUT = 1.8 V,fSW = 480 kHz
VOUT = 1.2 V,fSW = 480 kHz
VOUT = 0.8 V,fSW = 330 kHz
G000
10
20
30
40
50
60
70
80
0
0.5
1
1.5
2
2.5
3
Output Current (A)
Output
Voltage
Ripple
(mV)
VOUT = 5.0 V,fSW = 780 kHz
VOUT = 3.3 V,fSW = 630 kHz
VOUT = 2.5 V,fSW = 480 kHz
VOUT = 1.8 V,fSW = 480 kHz
VOUT = 1.2 V,fSW = 480 kHz
VOUT = 0.8 V,fSW = 330 kHz
G000
0
0.4
0.8
1.2
1.6
2
0
0.5
1
1.5
2
2.5
3
Output Current (A)
Power
Dissipation
(W)
VOUT = 5.0 V,fSW = 780 kHz
VOUT = 3.3 V,fSW = 630 kHz
VOUT = 2.5 V,fSW = 480 kHz
VOUT = 1.8 V,fSW = 480 kHz
VOUT = 1.2 V,fSW = 480 kHz
VOUT = 0.8 V,fSW = 330 kHz
G000
20
30
40
50
60
70
80
90
0
0.5
1
1.5
2
2.5
3
Output Current (A)
Ambient
Temperature
(°C)
Natural Convection
All Output Voltages
G000
1000
10000
100000
400000
40
30
20
10
0
10
20
30
40
120
90
60
30
0
30
60
90
120
Frequency (Hz)
Gain
(dB)
Phase
(°)
Gain
Phase
G000
SLUSAH7
– SEPTEMBER 2011
TYPICAL CHARACTERISTICS (PVIN = 12 V, VIN = 5 V)(1) (2)
Figure 11. Efficiency vs. Output Current
Figure 12. Voltage Ripple vs. Output Current
Figure 13. Power Dissipation vs. Output Current
Figure 14. Safe Operating Area
Figure 15. VOUT=2.5 V, IOUT=3 A, COUT1= 100 F ceramic,
COUT2= 100 F ceramic, fSW= 480 kHz
(1)
The electrical characteristic data has been developed from actual products tested at 25
°C. This data is considered typical for the
(2)
The temperature derating curves represent the conditions at which internal components are at or below the manufacturer
's maximum
operating temperatures. Derating limits apply to devices soldered directly to a 100 mm
× 100 mm double-sided PCB with 1 oz. copper.
Applies to Figure 14.
10
Copyright
2011, Texas Instruments Incorporated
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