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  • LM5148-Q1: Voltage Regulation and full load working issue - LM5148-Q1

    Part Number: LM5148-Q1 Hi, I am trying to build a buck converter of rating: Input Voltage: 40-60V Output Voltage: 13.8V Output Current: 10A (Max) Following are the Issues faced while testing: No-Load losses are increasing with increase of input voltage…
    • Answered

  • LM5148-Q1: LM5148-LM25148DESIGN-CALC - Buck Inductance

    Resolved
    Part Number: LM5148-Q1 Other Parts Discussed in Thread: LM5148 , LM5149 Hello, I'm currently using the LM5149-LM25149 Calculator for the LM5148 Buck Converter (as the LM5148 one's is not available). For the buck inductance calcul, I followed the…
    • Resolved

  • LM5148-Q1: LM5148-Q1

    TI Thinks Resolved
    Part Number: LM5148-Q1 Other Parts Discussed in Thread: PSPICE-FOR-TI , LM25149 Hello, Hello, I want to use the LM5148-Q1 in a Buck converter, for this I would like to use the LTspice model. I could not find it on the main product page, is this something…

  • LM5148-Q1: Issue with Switching Transient

    Part Number: LM5148-Q1 Hi, Please find the attached Gate pulse and Output Graph Images of a DC-DC converter :40V-60V Input, 13.8V/10A Output. As you can see there are Transients up to 4-5V in the output when ever the MOSFET is switching, Although…

  • LM5148-Q1: switching frequency Mismatch and Inductor heating

    Part Number: LM5148-Q1 Hi, We are designed a step down circuit using LM5148-Q1 as buck controller. Vin =48V, Vout = 13.5V, Iout max 10A, Inductor used 8uH (Inductor DCR 6mOhm, Max dc current 13A) We set the switching frequency 500KHz by Rt resistor value…

  • LM5148-Q1: Current consumption on active mode

    TI Thinks Resolved
    Part Number: LM5148-Q1 Hi, What is the current consumption of LM5148QRGYRQ1 through VIN pin in Active mode? Regards, CHINNAN

  • LM5148-Q1: Low Dropout mode & current limit feature

    TI Thinks Resolved
    Part Number: LM5148-Q1 Hi Team, What is the Low Dropout mode mean? What’s the voltage level operates under this mode? And is the efficiency same as PWM mode? For the current limit feature, what’s the responding time if the IC detects the overload…

  • LM5148-Q1: Load Regulation issue.

    TI Thinks Resolved
    Part Number: LM5148-Q1 Hi all, I have used the IC " LM5148-Q1 " for the design of the buck converter, where I have calculated all the values according to the IC datasheet also verified with the support Excel file provided. Every thing looks good according…
    • Answered

  • LM5148-Q1: LTspice model

    Resolved
    Part Number: LM5148-Q1 Other Parts Discussed in Thread: LM5149-Q1 , LM25149-Q1 I am investigating using the LM5148-Q1 in a CCCV charger for a battery, for this I would like to use the ltspice model. I could not find it on the main product page, is this…
    • Resolved

  • TPS62933: Automotive grade similar device with TPS62933 recommendation

    TI Thinks Resolved
    Part Number: TPS62933 Other Parts Discussed in Thread: LM5148-Q1 Hi Team, Could you possible help to check if we have similar device as below competitor? Customer requirement is input voltage 9V+, and output voltage is -32V, and output current is 2.4A…

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