Answer the question
In order to leave comments, you need to log in
3-channel DC-DC, voltages do not rise. Where did I make a mistake?
Hello. I spread the board with a microprocessor, I decided to use tps65261 for power. I took the circuit from the datasheet, removed the excess (VDIV to turn off the input voltage control, EN in the air for autostart, I do not use PGOOD and RESET). I ordered the board with SMT installation, i.e. all components are placed correctly. I didn’t understand the COMP conclusions, I connected it approximately as in the datasheet.
Upon receipt, I found that the GND pins were not soldered, so I pre-soldered the contacts with the bottom heating 200 * (highly heat-capacitive, it didn’t work without it).
Answer the question
In order to leave comments, you need to log in
The question is closed. In attempts to remake, I drew attention to the black capacitor, I decided to check it out. It turned out that 22pF was soldered there, instead of the prescribed 1nF, after the replacement, the circuit started up.
Didn't find what you were looking for?
Ask your questionAsk a Question
731 491 924 answers to any question