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  • LM21215: Adjusting current limit using DAC?

    TI Thinks Resolved
    Part Number: LM21215 Other Parts Discussed in Thread: TPSM8287B30 , Hello team, My customer would like to change the current limit setting on the field. Would it be possible to use DAC to set the current limit instead of resistor? Or should we use…
    • Answered

  • LM21215: Bode Plot -- Gain Margin and Phase Margin

    Resolved
    Part Number: LM21215 HI, How to read the Gain Margin and Phase Margin from the Bode Plot graph after running simulation with the design? Thanks, Laurie
    • Resolved
    • Answered

  • LM21215: Can a control system with positive phase margin and NEGATIVE gain margin?

    Resolved
    Part Number: LM21215 Hi Team, As we know, generally speaking, the premise of a stable system is that about 45° phase margin and 10dB gain margin. I noticed about some system is still stable even if when -180° with a negative gain margin. Why does system…
    • Resolved

  • SM320C6678-HIREL: Lm10011 + LM21215

    TI Thinks Resolved
    Part Number: SM320C6678-HIREL Other Parts Discussed in Thread: LM10011 Is it mandatory to set CVDD start up voltage to 1.1V, Because as per my current design Rset=301k, Rfb1=8.45k, Rfb2=10k So theoretically calculated CVDD= 1.107 - 0.000507 = 1…
    • Answered

  • LM21215

    Resolved
    Other Parts Discussed in Thread: LM21215 Please advise the simulation tool for the circuitry with LM21215
    • Resolved

  • RE: LM21215+LM10011 for TMS320C6678 SmartReflex power supply

    Hi Philly - did you use the LM21215 quickstart tool to verify the stability of your design? If so, please forward. Also, can you send a scope shot of the SW node waveform? Finally, I would like to review your PCB layout. Note that if a SYNC signal isn…
    • Answered

  • LM21215: wrong formula for fz2

    Resolved
    Hi! I think (as per my calculation) the equation 16 for fz2 on page 21 not correct. There should be Rc2 instead of Rc1 i.e. fz2 =1/[2.pi .(RC2 + RFB1).CC3]. and the fp2 can be simplified to 1/[2.pi.RC1 CC2) because Cc1 >>Cc2 regards Bishnu
    • Resolved
    • Answered

  • TPS54010: device height nominal/tolerance and Theta_JC_Top et Theta_JC_Bot

    Resolved
    Part Number: TPS54010 Other Parts Discussed in Thread: LM21215 Dear team, Only maximum height is specified on the DS , could you please share nominal and tolerance as well as Theta_JC_Top et Theta_JC_Bot ? Customer is using Two-Resistor Compact…
    • Resolved

  • Buck regulator With VID Controller

    TI Thinks Resolved
    Other Parts Discussed in Thread: LM21215 , LM10011 , TPS548D22 , TPS543C20A , TPS546C23 , TPS546D24A , TPS546C20A Hi Team, We are designing a NXP QorIQ T2080 Processor based board which needs a variable Core Supply (0.9V to 1.1V). We are looking for…

  • TPSM843A22: Site support forum

    TI Thinks Resolved
    Part Number: TPSM843A22 LM21215 Other Parts Discussed in Thread: INA219 , TPSM843A22 , LM21215A , TPS40077 , LM5141 , TPS40170 , LM5146 , LM25145 Tool/software: I I want to design a DC-DC buck converter with an input voltage range of 12-24V, an…

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