Question
Download Solution PDFIC 7805 is a ____ voltage regulator.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFFixed-Positive Voltage Regulator:
The series 78XX regulators are the three-terminal devices that provide a fixed positive output voltage.
IC 7805:
7805 is a voltage regulator IC which is used to provide a constant output voltage of 5V.
The last two terms (78 05) denote the output voltage of the Regulator.
Specifications of 7805 IC:
- Drop out voltage = 2 V
- Input voltage range = 7V- 35V
- Current rating Ic = 1A
- Output voltage range VMAX = 5.2V, VMIN = 4.8V
Fixed-Negative Voltage Regulator:
- The series 79XX regulators are the three-terminal IC regulators that provide a fixed negative output voltage.
- This series has the same features and characteristics as the series 78XX regulators except for the pin numbers which are different.
Negative-Voltage regulators in the 79XX series are as shown:
|
IC Part |
Output Voltage (V) |
Minimum Vi (V) |
|
7905 |
– 5 |
–7.3 |
|
7906 |
–6 |
–8.4 |
|
7908 |
–8 |
–10.5 |
|
7909 |
–9 |
–11.5 |
|
7912 |
–12 |
–14.6 |
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