Hi all,
I need to get down to 3.3V from 5V or 12V. 5 is better. My consumer is supposed to eat 1.8A @ 3.3V, but I would like to have some reserve and excessive heat is an issue.
I have built a simple thing based on LF33C with adjustable resistor, capacitors and everything. The spec sheet says, it is rated for 1.5A and I was hopping my consumer was asking for more it actually needed. The circuit works very well with no load.
As soon as you connect the load, however, the thing gets cooking grill hot and does not put out anything more than 0.9V. So I need another solution. More powerful, I guess.
Can you suggest a more powerful regulator? How to build a circuit that would maintain the voltage irrespective of the load? Difficult?
Regards,
/Edmunds
I need to get down to 3.3V from 5V or 12V. 5 is better. My consumer is supposed to eat 1.8A @ 3.3V, but I would like to have some reserve and excessive heat is an issue.
I have built a simple thing based on LF33C with adjustable resistor, capacitors and everything. The spec sheet says, it is rated for 1.5A and I was hopping my consumer was asking for more it actually needed. The circuit works very well with no load.
As soon as you connect the load, however, the thing gets cooking grill hot and does not put out anything more than 0.9V. So I need another solution. More powerful, I guess.
Can you suggest a more powerful regulator? How to build a circuit that would maintain the voltage irrespective of the load? Difficult?
Regards,
/Edmunds