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参数资料
| 型号： | L5994A |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A DUAL SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PQFP32 |
| 封装： | TQFP-32 |
| 文件页数： | 17/26页 |
| 文件大小： | 322K |
| 代理商： | L5994A |
Obsolete
Product(s)
- Obsolete
Product(s)
L5994 - L5994A
24/26
Figure 9. Demo Board Efficiency vs Output
Current
Figure 10. Demo Board Efficiency vs Output
Current
Figure 11. Demo Board Efficiency vs Output
Current
Figure 12. Demo Board Efficiency vs Output
Current
Figure 13. Demo Board Overall Efficiency (Iout3
= 3A, REG12 = OPEN, OSC = GND)
Figure 14. Demo Board Overall Efficiency (Iout5 =
3A, REG12 = OPEN, OSC = GND)
0.001
0.005 0.01
0.05 0.1
0.5
1
5 I
O
(A)
50
60
70
80
90
D96IN420
EFF.
(%)
Vin=6V
Vin=20V
Vin=15V
VO=5.1V
fSW=200KHz
RUN3=GND
NOSKIP=GND
0.001
0.005 0.01
0.05 0.1
0.5
1
5 I
O
(A)
50
60
70
80
90
D96IN421
EFF.
(%)
Vin=6V
Vin=20V
Vin=15V
VO=5.1V
fSW=300KHz
RUN3=GND
NOSKIP=GND
0.001
0.005 0.01
0.05 0.1
0.5
1
5 I
O
(A)
50
60
70
80
90
D96IN422A
EFF.
(%)
Vin=6V
Vin=20V
Vin=15V
VO=3.3V
fSW=200KHz
RUN5=GND
NOSKIP=GND
0.001
0.005 0.01
0.05 0.1
0.5
1
5 I
O
(A)
50
60
70
80
90
D96IN423A
EFF.
(%)
Vin=6V
Vin=20V
Vin=15V
VO=3.3V
fSW=300KHz
RUN5=GND
NOSKIP=GND
0.001
0.005 0.01
0.05 0.1
0.5
1
5 I
OUT5
(A)
87
88
89
90
91
92
EFF.
(%)
Vin=6V
Vin=20V
D97IN581
93
0.001
0.005 0.01
0.05 0.1
0.5
1
5I
OUT3
(A)
89
90
EFF.
(%)
Vin=6V
Vin=20V
D97IN582
91
92
93
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