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7805A 参数 Datasheet PDF下载

7805A图片预览
型号: 7805A
PDF下载: 下载PDF文件 查看货源
内容描述: 3端子正电压稳压器 [3-Terminal positive Voltage Regulators]
分类和应用: 稳压器
文件页数/大小: 6 页 / 223 K
品牌: WINGS [ WING SHING COMPUTER COMPONENTS ]
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7805A
Test Circuits
3- Terminal Positive Voltage Regulators
V
IN
1
7805A
2
3
V
OUT
V
IN
C
IN
1
7805A
2
3
270pF
V
OUT
V
IN
- +
1
7805A
2
3
V
OUT
0.33uF
C
IN
C
OUT
0.33uF
R
L
0.1uF
100
V
OUT
0V
+
-
DC 9V
R
L
DC Parameter
Load Regulation
Ripple Rejection
Application Circuits
Constant Current Regulator
Circuit for Increasing Output Voltage
V
IN
1
7805A
2
3
V
OUT
V
IN
1
7805A
I
B
2
3
V
OUT
0.33uF
R
1
I
R1
0.1uF
10uF
0.33uF
R
1
R
2
0.1uF
10uF
V
OUT
=V
OUT(IC)
+V
Z
I
1
=V
OUT(IC)
/R
1
V
OUT
=V
OUT(IC)
(1+R
2
/R
1
)+R
2
*I
B
High Output Current with Short-circuit Protection
V
IN
R
1
Q
2
R
sc
Q
1
1
3
V
OUT
7805A
2
0.33uF
0.1uF
10uF
R
1
≤V
BE1
/I
B(max)
R
SC
=V
BE2
/I
SC
, I
SC
: Short-Circuit Current
3