Hello Everyone
I have benn looking through TI website and reading linear regulators data sheets, but I could not find a the part with the specs I am looking for.
I have a 12V battery supplying power to sensors and data logger.
One of those sensors requires a very quiete and stable 12V source. It consumes around 50mA, but I'm considering 100mA for safety.
The solution I want to implement is a DC-DC converter from battery voltage (10-14V) raising voltage to 15V. (Something like TEN-5-1213 from Tracopower).
This DC-DC converter oscillates at 300kHz and has 500mV pk-pk ripple.
I 've been looking for the correct linear regulator to reduce overall noise to belloww 10mV, using also filtering capacitors.
Could you please suggest some regulators ?
Those I looked have not enough PSRR or require a higher drop out voltage.
I will be looking forward to hear from you.
Best regards,
Joao Ferreira