LM3478 with digital potentiometer

Krzysztof Marcinek

Other Parts Discussed in Thread: LM3478, LM10010

Hi,

Is it possible to connect digital potentiometer to LM3478 feedback path to achieve digital control of output voltage? I'd like to regulate the output voltage in range 20-30V. Can you recommend any part numbers?

over 10 years ago

0 Florent Boico over 10 years ago

TI__Intellectual 1775 points

Hi Krzysztof,

As long as parasitics of the digital potentiometer and switching between values does not affect the loop stability of the system, a digital potentiometer should be able to work with the LM3478.

The LM10010 might suit your need: http://www.ti.com/product/LM10010/description .

Best Regards,

Florent Boico

Power management

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LM3478 with digital potentiometer