參數(shù)資料
型號: MC33063AVDR2
廠商: ON SEMICONDUCTOR
元件分類: 穩(wěn)壓器
英文描述: DC-to-DC Converter Control Circuits
中文描述: 1.5 A SWITCHING REGULATOR, 100 kHz SWITCHING FREQ-MAX, PDSO8
封裝: SOIC-8
文件頁數(shù): 6/16頁
文件大?。?/td> 149K
代理商: MC33063AVDR2
MC34063A, MC33063A
http://onsemi.com
6
8a. External NPN Switch
8b. External NPN Saturated Switch
(See Note 7.)
8
7
6
R
sc
V
in
1
2
V
out
R
R
constant V
in
0 for
7. If the output switch is driven into hard saturation (non–Darlington configuration) at low switch currents (
300 mA) and high driver currents
(
30 mA), it may take up to 2.0
μ
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
non–Darlington configuration is used, the following output drive condition is recommended.
8
7
6
R
sc
V
in
1
2
V
out
Figure 8. External Current Boost Connections for I
C
Peak Greater than 1.5 A
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