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TPS25925: Product Selection

Part Number: TPS25925

Hi

My customer is currently reviewing the Power switch for Cradle.

I am looking for the following power switch:

1. Input voltage: 5V
2. Rated current: 1.5A ~ 2A
3. Adjustable current limit
         - When the set limit value is exceeded, output voltage output is maintained,
            Current is used up to the set value.
4. Over voltage protection

When I looked at it, it was TPS25925x. I want to know if the product is suitable.

Looking at Figure 38 in the datasheet below, it is understood that Vout will drop only as much as the body diode if current increases by 125%. Is that what I understood?

Or can you recommend a better product?

  • Hi Andy,

    Thanks for reaching out!
    Please look at TPS259531DSG. It is new device with better current limiting accuracy and smaller than TPS25925x.

    Best Regards,
    Rakesh
  • hi
    thank you for your quick reply.
    Does your TPS259531DSG include all of the above items 1-4?
    I did not find the answer to question 3 in the datasheet for that content.
  • Hi

    1. Input voltage: 5V
    Yes
    2. Rated current: 1.5A ~ 2A
    Yes
    3. Adjustable current limit
    - When the set limit value is exceeded, output voltage output is maintained,
    Current is used up to the set value.
    The output voltage drop depends on the amount of overload at the output. For example Vin=5V and current limit value is 2A. When the output is loaded with 1ohm, it is an overload event and output voltage VOUT becomes 2A*1ohm=2V.

    4. Over voltage protection
    Yes

    Best Regards,
    Rakesh
  • Hi Andy,

    If there are no follow up questions. please close this thread.

    Best Regards,
    Rakesh