Explanation: In linear regulator’s the impedance of active element may be continuously varied to supply a desired current to the load. But in the switching regulator, a switch is turned on and off. 2. What is the dropout voltage in a three terminal IC regulator?
A. |Vin| ≥ |Vo|+2v
B. |Vin| < |Vo|-2v
C. |V in| = |Vo|
D. |Vin| ≤ |Vo|
Answer:A
Explanation: In linear regulator’s the impedance of active element may be continuously varied to supply a desired current to the load. But in the switching regulator, a switch is turned on and off. 2. What is the dropout voltage in a three terminal IC regulator?
A. |Vin| ≥ |Vo|+2v B. |Vin| < |Vo|-2v C. |V in| = |Vo| D. |Vin| ≤ |Vo|
Explanation: The unregulated input voltage must be atleast 2V more than the regulated output voltage. For example, if Vo=5V, then Vin=7V. 3. To get a maximum output current, IC regulation are provided with