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LM337: About LM337

takahiko yokota
Mastermind 7135 points
Part Number: LM337

Hi

I got two questions about LM337 from my customer.
Could you tell me the following questions?

-Does Cadj connect to near the ADJ terminal like attached document?

LM337.pdf

-I think that I can use ceramic capacitor using resister in series to boost ESR.
 If you have recommending or reference value about ceramic capacitor, could you tell me them?

Best regards,
Yokota
  • 0
    TI__Guru 55940 points

    Hi Yokota,

    Cadj should be placed in parallel to R2.  Below please find an example schematic from the similar LM337-N datasheet.  The LM337-N is a very similar device that was released by National Semiconductor before the TI acquisition.  

    A 10 uF Cadj will improve the PSRR as shown in Figure 4:

    Very Respectfully,

    Ryan