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  • LM1117: TO-252

    mojtaba pourvash
    mojtaba pourvash
    TI Thinks Resolved
    Part Number: LM1117 Tool/software: Hi, my question is in regard to thermal resistance data specified on page 4 of the datasheet for LM1117 800-mA, Low-Dropout Linear Regulator. An image is shown below. As you can see for TO-252 package, junction to case…
    • 7 days ago
    • Power management
    • Power management forum
  • LM1117-Q1: TSD(shutdown)

    Hui Cao22
    Hui Cao22
    TI Thinks Resolved
    Part Number: LM1117-Q1 Tool/software: LM1117-Q1 in the specification sheet The internal protection junction temperature of PLM111750QKVURQ1 is 180 degrees TSD(shutdown). However, after we received the sample and measured it under different loads, the…
    • 1 month ago
    • Power management
    • Power management forum
  • LM1117: LM1117

    Arabella Zhang
    Arabella Zhang
    TI Thinks Resolved
    Part Number: LM1117 Tool/software: Dears, The customer encountered some problems when using LM1117IMPX-3.3. 3.3V is connected to a 500Ω load, +5V is powered by an external power supply, and the external input current is 80mA. Remove 1117, and the external…
    • 8 months ago
    • Power management
    • Power management forum
  • LM1117: maximum operating voltage

    Tonu Arulaane
    Tonu Arulaane
    TI Thinks Resolved
    Part Number: LM1117 Tool/software: Component page gives Vin (max) as 15V. Datasheet 7.1 Absolute Maximum Ratings gives 20V. 7.3 Recommended Operating Conditions gives15V Questions: 1. what is the actual maximum input rating of this device? 2. Will operation…
    • 5 months ago
    • Power management
    • Power management forum
  • RE: LM1117: Output drift

    Ishaan Shetye
    Ishaan Shetye
    Please share a picture of board layout as well as picture of assembled board. The schematic looks acceptable except for R69. What is the purpose of this resistor?
    • 6 months ago
    • Power management
    • Power management forum
  • LM1117: Thermal calculate of LM1117I

    Leo Ma
    Leo Ma
    TI Thinks Resolved
    Part Number: LM1117 Tool/software: Hi team, Customer use LM1117I, Vin=7V, Vout=5V, Iout=0.6A. They test temperature of the IC case is 70℃, but the Vout decrease to 0 quickly. I have 2 questions: Does this trigger over temperature shutdown? How to calculate…
    • 8 months ago
    • Power management
    • Power management forum
  • RE: LM1117: +5 Date Code Suffix with Regards to Part Marking

    McKyla Beuttler
    McKyla Beuttler
    Hey Zachary, Thank you for your question. Yes, the "+5" on the end of the date code indicates the extended shelf life of the product. (i.e. YYWW+5 = Date Code +5 years shelf life). For more information on shelf life please see the product shelf…
    • 7 months ago
    • Power management
    • Power management forum
  • Answered
  • LM1117: Dynamic fluctuation of output

    Shuji Ishiwata
    Shuji Ishiwata
    Resolved
    Part Number: LM1117 Hi All, I have a question about LM1117. I would like to dynamically change the output voltage of the LM1117. In that case, we are considering a circuit that uses a transistor to switch the ADJ pin resistance. Is it okay to use the LM1117…
    • Resolved
    • over 1 year ago
    • Power management
    • Power management forum
  • LM1117: Does TI have some feature like this?

    Jimmy WANG
    Jimmy WANG
    TI Thinks Resolved
    Part Number: LM1117 Other Parts Discussed in Thread: LP5912 , TPS709 , TPS7B7701-Q1 , TPS7B4256-Q1 , TL1963A , TPS7A45 , TPS706 Hi team, Does TI have some feature like this? the integrated back-to-back diode of LDO? Like the below block. SGM2205. Due to customer…
    • over 1 year ago
    • Power management
    • Power management forum
  • LM1117: What does the + at the end of the date code mean?

    CHANYONG UM
    CHANYONG UM
    TI Thinks Resolved
    Part Number: LM1117 hello In the TI COC in the attached file, the DATE CODE is shown as 2341+5. In the case of 2341, I understand it as YYWW, but I am curious about the meaning of +5. TI COC.pdf thank you
    • over 1 year ago
    • Power management
    • Power management forum
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