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參數(shù)資料
| 型號： | MC33063AVPG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators |
| 中文描述： | 1.5 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDIP8 |
| 封裝： | LEAD FREE, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 6/13頁 |
| 文件大?。?/td> | 168K |
| 代理商： | MC33063AVPG |
MC34063A, MC33063A, NCV33063A
http://onsemi.com
6
9a. External NPN Switch
9b. External NPN Saturated Switch
(See Note 8)
8
7
6
R
sc
V
in
1
2
V
out
R
R
constant V
in
0 for
8. If the output switch is driven into hard saturation (nonDarlington configuration) at low switch currents (
≤
300 mA) and high driver currents
(
≥
30 mA), it may take up to 2.0 s to come out of saturation. This condition will shorten the off time at frequencies
≥
30 kHz, and is magnified
at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a
nonDarlington configuration is used, the following output drive condition is recommended.
8
7
6
R
sc
V
in
1
2
V
out
Figure 9. External Current Boost Connections for I
C
Peak Greater than 1.5 A
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