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TPS7H1121-SP: Parallel operation

Steve Widener
Genius 11010 points
Part Number: TPS7H1121-SP

Tool/software:

Can the TPS7H1121-SP be used in parallel for increase current capability?

  • 0
    TI__Genius 12190 points

    Hi Steve,

    Yes, the TPS7H1121 can be used in parallel.

    Common parallel LDO best practices apply: tie the VIN, VOUT, EN, SS, and CL pins of one device to the corresponding pins of the other. The doubled current present at the SS and CL pins will require CSS to be doubled and RCL to be halved compared to when selecting values for a single-device configuration. Utilize ballast resistors for current sharing and connect the FB pin of each device to its own OUT node upstream from its ballast resistor. 

    Thanks,

    Sarah