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PTH08T240W: Output current problem

Enhui Yang
Intellectual 1400 points
Part Number: PTH08T240W

Hi team,

When use 12V input, 5V output, the output current can only reach 1A. They need about 10A output current. Could you help to solve this problem? Thanks.

Below is the schematic:

  • +1
    TI__Expert 3140 points

    Hi Yang

    1. Change R2 to 0ohm and R7 to 0ohm

    2. if customer using turbo trans pls calculate the correct value for R5 by including Cout derating,

    looking at the Cout the cap value is wrong with respect to R5 value 10kohm

    3. track pin have internal RC circuit it is okay to use 0ohms at R3

    4. if smart sync is not used, it is recommended to connect smartsync pin to gnd.

    what is happening to the stability and vout after more current is drawn

    Thank you

    Savith