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  • LM337: LM337KTTR

    TI Thinks Resolved
    Part Number: LM337 Hello, Glad to contact you, For Linear Voltage Regulator LM337KTTR, we use it in below condition: Vin= -5V, Vout = -3.3V, R1=120R, R2=196R, all the cap value follows recommended circuit. do you have some data to tell the output current…
    • Answered

  • LM337-N: Heat generation and ripple voltage.

    Resolved
    Part Number: LM337-N We are using LM337N to generate -8V from -15V. When the load current of the LM337N increases and its heat is generated, there are individuals where the output voltage ripple increases and individuals where it does not. -1 What is the…
    • Resolved

  • LM337: IMP suffix listed as non-RoHS, what part makes it non-RoHS?

    TI Thinks Resolved
    Part Number: LM337 Trying to find components in this time of chip shortages, we normally spec the RoHS version LM337IMP/NOPB but it is not in stock. There is stock of the LM337IMP. In the datasheet it states "Call TI" regarding the lead finish on the…
    • Answered

  • LM337: Input Capacitor

    Resolved
    Part Number: LM337 Other Parts Discussed in Thread: LM317 , Hi Team, Our customer is currently working with both the LM337 and LM317 LDOs. Currently using with a 1µF tantalum input capacitor with a 3Ω ESR (some 7Ω in some versions). The capacitors are installed…
    • Resolved
    • Answered

  • LM337: why R1=120ohm

    Resolved
    Part Number: LM337 hi in datasheet (version L) page 10 (section 9.2.2), there writes "Choosing R1 = 120 Ω means that about 10.42 mA of current will flow through R1" . Why so? The current flow in R1 should be (Vadj - Vo)/R1. Thanks.
    • Resolved

  • LM337: Ceramic capacitors instead of electrolytic

    TI Thinks Resolved
    Part Number: LM337 We’ve used the LM337 before and in one case used ceramic 1-10uF on its output, and in another followed the datasheet and used a large 10uF alum electrolytic. I’d have a difficult time fitting a large part – any chance we can get…

  • LM337: Complete thermal resistance information

    TI Thinks Resolved
    Part Number: LM337 Dear Team, My Customer would like to have the complete thermal Resistance information for the LM337 in DDPAK/TO-263 (KTT) package. Regards, Renan
    • Answered

  • RE: LM337: About Ripple Rejection Ratio

    Resolved
    Hello Hide-San, Please find attached PSRR plot for LM337 for the following test conditions: Vin -18V, Vout -15V and Iout values of 20mA, 50mA, 100mA, 150mA, 200mA, 300mA, 400mA and 500mA. Regards, Srikanth LM337 PSRR -18V Vin -15V Vout Multiple…
    • Answered

  • LM317: LDO with better PSRR than LM317 (SOT223) / LM337 (SOT223)

    Resolved
    Part Number: LM317 Other Parts Discussed in Thread: LM337 , LM340 , LM7800 Hi team, Do we have upgrade device of LM317 (SOT223) / LM337 (SOT223)? Like device with better PSRR? Thank you for your help! Best regards, Wendy
    • Resolved

  • LM337: About the LM337 simulation model

    TI Thinks Resolved
    Part Number: LM337 Hi Team, I am using the simulation model of LM337 in LTSpice. As a circuit, we would like to apply an offset voltage to GND to a standard circuit and raise the output voltage by the offset voltage. However, perhaps the provided model…

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