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TLV62565: FB resistor

Part Number: TLV62565
Other Parts Discussed in Thread: TLV62569

Hi team,

I have a question about the FB resistor.

My customer would like to avoid the power save mode, so they're considering to flow dummy load by reducing the FB resistance. How low can this device allow FB resistance?  Customer is considering to connect several tens of ohm. For example, for an output of 3.3V, the total resistance of the FB resistors is considered 33ohm for 100mA. These range is acceptable?

Regards,

Yamaguchi

  • Hello Yamaguchi-san,

    The TLV62565 was not designed to operate purely on PWM mode. Passive components such as output inductor and capacitor as well as the IC process variation can influence its mode of operation. I suggest using either TLV62658A (1A) or TLV62569 (2A) instead because it operates only in FPWM. Please refer to the link of the datasheet below for reference.

    Best regards,

    Excel