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LM5152-Q1: Schematic review

Sveinn Jia
Expert 5455 points
Part Number: LM5152-Q1

Tool/software:

Hi Team,

Could you help review LM5152 schematic for HIWAY Auto IVI project?

VIN=13.5V (12V battery)

Vout=24V@5A

TI_POWER.pdf

Regards,

Sveinn

  • 0
    TI__Mastermind 19595 points

    Hello Sveinn,

    thanks for reaching out to us via e2e.

    The maximum output voltage of the LM5152 is 20V, so it is not possible to generate 24V with it.
    An option may be using the LM5123 instead.
    But please be aware that instead of the STATUS pin on the LM5152 the LM5123 uses a PGOOD pin which behaves differently when the device is boosting.

    Please keep AGND and PGND separate.
    The only connection between these two power domains must be from the PGND pin via the thermal pad to the AGND pin.
    Please follow the layout guidelines in the datasheet.

    For the moment, I did not very / calculate any of the component values (inductor, sense resistor, compensation network).
    Please fill in the appropriate Quick-start Calculator for that purpose.

    Best regards
    Harry