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D.A.S.
D.A.S.
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From the datasheet I read, The feedback input circuit at the FEEDBACK pin consists of a low impedance source follower output set at 1.65 V.

My guess is this FB is used to provide a gain ratio to multiply Vref to the output , Rf(Rf+Rs)/Rs * Vref = 13k(13k+2.05k)/2.05k * 1.65 = 12.375V But the Si diode drop must be added. But the App Note ought to give better info.

From the datasheet I read, The feedback input circuit at the FEEDBACK pin consists of a low impedance source follower output set at 1.65 V.

My guess is this FB is used to provide a gain ratio to multiply Vref to the output , Rf/Rs * Vref = 13k/2.05k * 1.65 = 12.375V But the Si diode drop must be added. But the App Note ought to give better info.

From the datasheet I read, The feedback input circuit at the FEEDBACK pin consists of a low impedance source follower output set at 1.65 V.

My guess is this FB is used to provide a gain ratio to multiply Vref to the output , (Rf+Rs)/Rs * Vref = (13k+2.05k)/2.05k * 1.65 = 12.375V But the Si diode drop must be added. But the App Note ought to give better info.

Source Link
D.A.S.
D.A.S.
  • 148k
  • 3
  • 56
  • 190

From the datasheet I read, The feedback input circuit at the FEEDBACK pin consists of a low impedance source follower output set at 1.65 V.

My guess is this FB is used to provide a gain ratio to multiply Vref to the output , Rf/Rs * Vref = 13k/2.05k * 1.65 = 12.375V But the Si diode drop must be added. But the App Note ought to give better info.