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TPS65400: Buck converters with I2C or PMBUS monitoring function

JH Shin
Guru 10890 points
Part Number: TPS65400
Other Parts Discussed in Thread: TPS65263

Tool/software:

Hello,

My customer is looking for step-down (buck) products between 3A and 15A with output voltage/current monitor function via I2C or PMBUS.

The products I found are 8 as shown in the link below, and except for the TPS65400, they are all 10A or higher.

https://www.ti.com/power-management/acdc-dcdc-converters/products.html#1129=Buck%3BBuck-Boost%3BInverting%20Buck&2192=PMBus%3BI2C%2FPMBus%3BI2C&238max=12%3B30&238min=0.3%3B12&451max=3%3B15&634max=5%3B95&634min=-32%3B0.9&

Are there any TI power products under 6A that meet customer requirements?

Thank you.

JH

  • 0
    TI__Mastermind 30031 points

    Hi JH,

    Could you please kindly share me customer, EE and end equipment? And why they need I2C/PMBUS with <6A device?

    It would be really appreciated if you could share me more requirement.

    • What is VIN, VOUT ranges
    • Fsw options
    • IOUT range with current limit target
    • Preferable Control scheme (COT vs Fixed Freq)
    • PMBUS, I2C, SVID vs none digital,
    • Efficiency target, thermal requirement (Max Ambient)
    • Transient requirements
    • Any other features such solution size, SS, SYNC, Stack-ability …etc

    Thanks!

    BRs

    Lucia

  • 0 in reply to Lucia Gao
    Guru 10890 points

    Hi Lucia,

    Thanks for your reply.

    The customer's application is Repeaters for WI.

    They use a separate IC to monitor voltage and current on the board they are designing, but they want to replace this with the power device's own functions.

     - VIN : 12V, VOUT : 0.9 ~ 5V

     - Output current : 3~15A (3~6A products prefer multi-output products and 8~15A products prefer single output products)

    Please introduce power devices that can monitor output voltage/current through I2C or PMBUS.

    Regards,

    JH

  • 0 in reply to JH Shin
    TI__Mastermind 30031 points

    Hi JH,

    Thanks for your feedback. Pls kindly let me check and get back to you during these days.

    BRs

    Lucia

  • 0 in reply to Lucia Gao
    TI__Mastermind 30031 points

    Hi JH,

    If they prefer multi-output solutions, we have:

    (1) TPS65263: TPS65263, 4.5-V to 18-V Input Voltage, 3-A/2-A/2-A Output Current Triple Synchronous Step-Down Converter with I2C Controlled Dynamic Voltage Scaling.

    (2) TPS65400: TPS65400 4.5- to 18-V Input Flexible Power Management Unit With PMBus/I2C Interface

    BRs

    Lucia