Sunday, 16 July 2017

Voltage Regulators - Variable and Fixed output voltage regulator ICs.





Voltage regulators use to get any fixed or variable output voltage. There are many types of voltage regulators comes from different manufactures that can fill your requirement. For the example we have 12VDC SMPS and want to power-up 5v microcontroller, we need to get down voltage. For this we can use LM7805 regulator.



List of different Fixed voltage output regulators :-

  Regulator Part No.
Min-Max Voltage Input
Output voltage
LM7805
7-25v
5
LM7806
8-25v
6
LM7808
10.5-25v
8
LM7809
11.5-25v
9
LM7810
12.5-25v
10
LM7812
14.5-25v
12
LM7815
17.5-30
15
LM7818
21-33v
18
LM7824
27-38v
24













List of variable output voltage regulators with output current :-

Regulator Part No.
Min-Max Voltage Input
Output voltage
Output Current
LM317
3.7-40v
1.2 – 37v
1.5A
LM138/LM338
3-40v
1.2 – 32v
5A
LM350
4.2 – 35v
1.2 – 33v
3A
LM723
9.5-40v
2 – 37v
150ma
LM337
-0.3 to -40v
-1.2 to -37v
-1.5A





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