Hello I have a problem with the regulator lm2576t-adj that warms me up with just 1 amper of consumption, I feed it with a transformer of 2 amper 15 volt and I want to get a current of 1.3 amper in 14 volt and the integrated heats too much, Has a heatsink but the hour can not be played has an inductor of 150 uh and capacitor input of 100uf and output 1000 uf
your input voltage is 15V and the desired output voltage is 14V??
If this is correct you will most probably exceed the maximum duty cycle of this device.
You either have to increase the input voltage or decrease the output voltage.
In reply to Carsten Koeck:
If I have a voltage of 15 volt at the input and a 14 at the output, what voltage do they have to have, what difference between the input and the output?
I will manufacture the toroid of which material have to be U300 permeability okay?
And if I put 60uh is ok to get more current?
And finally I feed it with a transformer, bridge of diodes of 4 amper and capacitor of 4700uf that is well?
In reply to Leonardo Padovano:
And I have the problem that the voltage drops, I put 12 volts and a charge of 1 amper and it drops 11.2 volts I do not know why!
Hello, I do not have a voltage drop only 50 mv in 1.5 quite well, but the temperature is high warms up I'm thinking of using the lm2596 because I can not find a solution!
LV/MV CCP DC/DC Applications
In reply to JohnTucker:
I could solve half, change the pcb and put a best inducer and solve the voltage drop and temperature 12 1.5 volt ampere was 60 degrees, with a drop of 100 mVolt
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