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TL760M33-Q1: Looking for an alternate to KF33BDT

Part Number: TL760M33-Q1

The pinout and parameters are equal or better than the STM part, however, looking at the datasheet you have two curves for the compensation-capacitor selection.  I am using a 220uF PN UCL0J221MCL1GS capacitor on the output and it's datasheet doesn't list ESR, just impedance at 100kHz.  I don't think it will be an issue, but I would like to confirm since this is an established product.

  • Hi Rod,

    The capacitor you are using has ESR of 260mΩ max, and the TL760M33-Q1 datasheet recommends at least about 400mΩ ESR at 220uF. The datasheet also recommends more ESR depending on the amount of load current. You can easily solve this issue by putting a resistor in series with the output capacitor to artificially add more ESR.