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TPS65320-Q1: FB2 Resistor for TPS65320-Q1

Fery Feng
Intellectual 2270 points
Part Number: TPS65320-Q1
Other Parts Discussed in Thread: TPS65320D-Q1,

Hi team,

Could you please help to check if it is OK to use 680K and 133K for FB2 resistor divider? Since customer wants to lower the Iq.

  • 0
    TI__Genius 10490 points

    Hi,

    TI recommends choosing the two LDO feedback resistors such that the sum is between 20 kOhms and 200 kOhms. Larger feedback resistors can be used, but please keep in mind that the output voltage accuracy may decrease as the magnitude of the feedback pin current becomes comparable to the current flowing through the feedback resistors.

    I would also like to point out that the TPS65320-Q1 is not recommended for new designs (NRND). If this is a new design for your application, please consider using the TPS65320D-Q1 instead.

    Thanks,

    Gerard