Search tips
Showing 37 results View by: Thread Post Sort by

  • RE: LMR70503: Power management

    Hello Anna, I have not seen an update from you for two weeks, so I assume the questions are answered and the issue is solved. I close this thread now. If there is still something open, please reply and the thread will get opened again. If you have any other…
    • Answered

  • LMR70503: LMR70503 design review

    Resolved
    Part Number: LMR70503 Hi , We choose the LMR70503 as power rail on a new project. We have completed the schematic and layout of LMR70503. We would like to ask you to give some advices for the schematic and layout of LMR70503 we drew below. Schematic: …
    • Resolved
    • Answered

  • LMR70503: Specs

    Resolved
    Part Number: LMR70503 Hello, Can someone help me fill in this table please: MPN MFR Function/Topology Max. Output Current Output-Input Type Output Polarity Output Voltage LMR70503TMX/NOPB TI xx ? xx xx xx Please select from the below values…
    • Resolved
    • Answered

  • LMR70503: Using an external VREF

    Resolved
    Part Number: LMR70503 Hi, For an OLED design I need to generate a negative voltage to control the luminance. As the luminance is depending on the temperature, I need to adapt this negative voltage on fly. I plan to use the LMR70503 to generate the negative…
    • Resolved

  • LMR70503: Dynamic control of VOUT voltage

    TI Thinks Resolved
    Part Number: LMR70503 Is it OK to apply external voltage (VREF_EXT) instead of VREF pin to the Rt resistor (defined on page 1 of the datasheet). I understand that FB is virtual ground, so that VREF/Rt=|VOUT|/Rb. So, if one could use separately generated…
    • Answered

  • LMR70503: Can be used for Vin=3.3 or 5.5V, Vo=-3.3V, Io(max)=10mA and Vout ripple <33mVpp ?

    Resolved
    Part Number: LMR70503 Hello, Q1: Can LMR70503 be used to meet the following design requirements? VIN = 3.3V or 5V Vout = -3.3V Vout ripple <33mVpp Iout(max) = 10mA Q2: WeBench simulation is not available for LMR70503? Q3: Any smaller package TI…
    • Resolved

  • [FAQ] LMR70503: Minimum Input/Output Capacitance

    TI Thinks Resolved
    Part Number: LMR70503 Hello, The datasheet isn't too clear on the required minimum input and output capacit ance . Specifically I'm concerned about DC bias with ceramic capacitors. Does TI have a calculator, or other recommended method for determining…

  • LMR70503: Inverting DC/DC Converter

    TI Thinks Resolved
    Part Number: LMR70503 Other Parts Discussed in Thread: LM76005 Dear, Our customer is searching a device of the following spec. Would you please advise tell me the right device? Vin 3.3~5V Vout 30V Iout 0.5(max)A Best Regards, Seijiro Matsuoka
    • Answered

  • LMR70503: Thermal Resistance (JA and JC) for LMR70503TM/NOPB

    Resolved
    Part Number: LMR70503 Hi, we are using below IC in the design. Could you please provide Thermal Resistance (JA and JC) for this. LMR70503TM/NOPB Package: DSBGA (YFX) Thanks & Regards Kranthi
    • Resolved

  • LMR70503: LMR70503 maximum operating current and efficiency at high temperatures

    TI Thinks Resolved
    Part Number: LMR70503 We have a design for optical modules application, we will use LMR70503 for power output.Vin is 3.3V,and Vout is -5V. We need to know the maximum output current and efficiency at high temperatures.The high temperature is 80 degrees…

Didn't find what you are looking for? Post a new question.