参数资料
型号: LM350T
厂商: ON Semiconductor
文件页数: 8/10页
文件大小: 0K
描述: IC REG LDO ADJ 3A TO220AB
产品变化通告: Product Discontinuation 27/Jun/2007
标准包装: 50
稳压器拓扑结构: 正,可调式
输出电压: 1.2 V ~ 33 V
稳压器数量: 1
电流 - 输出: 3A
工作温度: 0°C ~ 125°C
安装类型: 通孔
封装/外壳: TO-220-3
供应商设备封装: TO-220AB
包装: 管件
其它名称: LM350TOS
LM350
D 6
1N4002
LM350
Voltage
V in
32V
V in1
0.1 m F
LM350
(1)
Adjust 1
V out1 R SC
Current
Limit
1K
V in2
D 1
1N4001
1N4001
D 2
5.0K
(2)
V out 2
240
Adjust 2
Adjust
D 5
IN4001
+
10 m F
I O
V O
+
1.0 m F
Tantalum
Adjust
Q 1
2N3822
1N4001
D 3
?10V
Diodes D 1 and D 2 and transistor Q 2 are added to allow adjustment
Q 2
2N5640
D 4
1N4001
Output Range:
0 ≤ V O ≤ 25 V
0 ≤ I O ≤ 1.5 A
of output voltage to 0 V.
D 6 protects both LM350’s during an input short circuit.
?10V
Figure 21. “Laboratory” Power Supply with Adjustable Current Limit and Output Voltage
+25V
V in
LM350
V out
R 1
620
V out
I out
D 1
Adjust
* To provide current limiting of I O
to the system ground, the source of
the FET must be tied to a negative
R 2
100
D 1
1N4001
D 2
1N4001
V in
1N4002
LM350
V out
120
+
1.0 m F
R 2 ≤
I Omax + I DSS
1.0k
voltage below ?1.25 V.
V ref
I DSS
V ref
R 1 =
V O < V (BR)DSS + 1.25 V + V SS
V SS *
2N5640
Adjust
720
MPS2222
TTL
Control
Minimum V out = 1.25 V
I Lmin ? I DSS < I O < 3.0 A
As shown O < I O < 1.0 A
Figure 22. Adjustable Current Limiter
D 1 protects the device during an input short circuit.
Figure 23. 5.0 V Electronic Shutdown Regulator
V in
LM350
V out
V in
LM350
V out
R 1
I out
240
1N4001
Adjust
I Adj
Iout +
Adjust
R 2
MPS2907
50k
+
10 m F
Vref
R1
^ 1.25 V
R 1
) IAdj
10 mA ≤ I out ≤ 3.0 A
Figure 24. Slow Turn?On Regulator
http://onsemi.com
8
Figure 25. Current Regulator
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