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TPS65233-1: TPS65233 vs TPS65233-1

Kai Hsiao
Guru 12675 points
Part Number: TPS65233-1
Other Parts Discussed in Thread: TPS65233,

Dear Sir 

1. May I know what's different between TPS65233 andd TPS65233-1 ?

2. We need to support Vin=15.6V (12V*130%) ,may I know TPS65233-1 could support Vout = 13V/18V and iout typ =330mA (Iout max=550mA) ?

3. Base on above condition ,do you have any thermal test result of TPS65233-1 ??

Thanks 

  • 0
    TI__Genius 17380 points
    Hey Kenny,

    Thank you for your post, I've moved it to Non-Isolated DC/DC forum to ensure the proper support team can assist.
  • 0
    TI__Genius 15135 points

    Hi,

    1. The difference is the operating frequency (Fsw), the Fsw of TPS65233-1 is 1MHz, the TPS65233 is 528KHz, so TPS65233-1 can support smaller inductor.

    2. Yes, the TPS65233-1 can support application: Vin=15.6V and  iout typ =330mA (Iout max=550mA).

    3. There is no thermal data of EVM, thermal can be estimated by thermal resistance that can be found in datasheet.  

    Note: the thermal is very related with PCB layout and layer numbers, so the thermal information of datasheet is for reference. 

    Zhao