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  • UA723: power supply is not stable.

    TI Thinks Resolved
    Part Number: UA723 I have a power supply with 3 UA723 chips in it. I would like to rule out the chips as the problem. How does one go about checking if the chips are "doing there thin"g properly. The power supply is jumping between 3v and 5v, it is…

  • UA723: Problem with regulation waaay out of spec!

    Part Number: UA723 I have used 723 (mostly T-100 and PDIP) parts in instrumentation systems and production designs for may years. In 2012 I used the part in two new designs. we completed out preliminary design validation process using PDIP pars successfully…

  • UA723: "Drift is a one-time thing (“zener walkout”) that stabilizes after time", Output voltage is drifting during test.....!!!!!

    TI Thinks Resolved
    Part Number: UA723 Other Parts Discussed in Thread: LM723 Hello, We're using the UA723 in Our power supplies product instead LM723CN from STMicro (is obsolete now and We can't get from any vendor), the problem with the currect UA723 from Texas Instruments…
    • Answered

  • LM79: Expected phenomenon during OUT-GND pin short circuit

    Resolved
    Part Number: LM79 Other Parts Discussed in Thread: UA78M , , UA723 Tool/software: Could you tell me each expected phenomenon when OUT-GNT pin of - LM7912CT/NOPB - UA78M05CDCYR is shorted? Expecialy wants to know: - How Internal Thermal-Overload…
    • Resolved
    • Answered

  • SN52723 Availability or Alternative Device

    Resolved
    Other Parts Discussed in Thread: TPS7A49 , LM723 , UA723 Hi Team, Is the SN52723 still a part that we make or is there a newer alternative we offer? Datasheet below.. 4314.Datasheet.pdf Thank you! -Jared
    • Resolved

  • LM/UA 723 obsolete

    TI Thinks Resolved
    Other Parts Discussed in Thread: UA723 , LM723 Hello, I am a beginner in electronics. I am currently working at an LM/UA723 linear power supply. I saw a few days ago that some of the LM723 parts number disappeared from the TI website and I know that…
    • Answered

  • Replacement for UA723CD

    Resolved
    Other Parts Discussed in Thread: UA723 , LM317L , LP2954 , LP2951 Hello E2E, I'm looking for a replacement for a uA723 SOIC-14 that has an input of 12-15V and output of 10V. The main constraint is that the chip must have an SOIC package and be able…
    • Resolved
    • Answered

  • RE: LM723C: What's the difference between UA723CN and LM723CN/NOPB

    Resolved
    Hi Jiang, LM723C and UA723 are exact same devices. The LM version was designed by National Semiconductor and UA is TI's device . All of the technical specs are similar. The only difference is in package types. LM723 is only available in PDIP(14 through…

  • Superimpose DC output with Sine wave

    Other Parts Discussed in Thread: UA723 I have AC - DC linear PS that is controlled by uA723 For my product test purposes I would like to be able to modulate output voltage with sine wave using sweep generator. AC - DC linear PS Vout max = 16V; Modulation…

  • RE: LM120: Need PDN (Part Discontinuation Notice) for obsolete LM120K-5.0 version of base part and also need its replacement or a cross

    Hey Dan, LM120K-5.0/883 is indeed obsolete. I've attached the PDN. We don't have an exact P2P replacement so I'd recommend the UA79 series as the closest alternatives. ~ Aaron PDN 200824.pdf

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