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PTW08A020W Internal Capacitance and RDson

John Tsinetakes
Prodigy 50 points
Other Parts Discussed in Thread: PTD08A020W

I need calarification on the PTD08A020W Datasheet 

On  Sheet 11 of PTD08A020W Datahseet Table 2 PTD08A020W Plant Parameters what are the conditions for Rds-on-high and Rds-on-low. Is RDSOn High the max value at 20A load. Also are these Rdson values for both the Buck Switcha and the Synchronous Rectifier Switch.

Seccond Table 4 PTD08A020W  Datasheet capacitor Parameters, the Quantity is "2" does this mean then two 47uF capacitors are in parallel on the ouptput?

  • 0
    TI__Mastermind 38230 points

    John:

    PTD08A020WAD  has two(2) 47µF ceramic capacitors on the output bus.

    The RDS on-Hi at 5mΩ is the  FETs RDS at maximum temperature( max load) for  synchronous and high side FET .

    The RDS on-lo   at 2.5mΩ is the  FETs RDS at typical  temperature( minimum load) for  synchronous and high side FET .

    Tom