LM63615-Q1: LM63615DQPWPQ1 , Switching Frequency unable to achieve after AGND connection

shree sharan

Part Number: LM63615-Q1

Tool/software:

Hi Team,

This part we are using in our design, it is unable to acheive 2.1 MHz

As per the datasheet,

After, Pull-Downed the RT pin to the ground, Unable to acheive 2.1MHz, here we can acheive only 600KHz

Please share your idea to acheive 2.1 MHz mates...!

+1 Frank De Stasi 2 months ago

Hello

Please set the mode to FPWM using your resistor R387 and R388 and test again.

If the frequency becomes 2.1MHz, then your load is too small to give the full frequency in AUTO mode.

If not, then we will need to troubleshoot more.

Thanks

0 shree sharan 2 months ago

Thanks Frank De Stasi,

This helps me to acheive the 2.1 MHz

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