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How to choose power regulator - TPS40060 vs. TPS51216

Wenjun Huang85261
Prodigy 150 points
Other Parts Discussed in Thread: TPS51216, TPS40060, TPS51916

I am choosing power regulator with these parameters:

Vin=28V, Vout=1.2V, Iout=5A.

2 results come out. TPS40060 (Wide Input (10V-55V) up to 1 MHz Frequency Synchronous Buck Controller, source only) and TPS51216 (DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck Controller, 2-A LDO, Buffered Reference).

I was wondering if for DDR2 applications, if TPS51216 will be better than TPS40060, since the description is with DDR2 in it? If so, what quality of TPS51216 makes it superior to TPS40060?

  • 0
    TI__Mastermind 49430 points

    Hi Wenjun,

    TPS40060 is a wide input range synchronous Buck controller. The key feature is wide operating input voltage (10V to 55V). If your application required a wide input range, TPS40060 is a good choice. TPS51216 is a complete DDR2. DDR3, DDR3L and DDR4 memory power solution synchronous Buck controller. It included VDDQ, VTT and VTTREF. It has D-CAP and D-CAP2 mode for fast transient response with ceramic output capacitors. Optimized efficiency at light and heavy load with auto-skip function. If your application is DDR2 related, TPS51216 is the perfect match. I would recommend using TPS51916 to instead of TPS51216 since TPS51916 is a mass market part with web-orderable EVM and PSpice model available. TPS51216 and TPS51916 are same pinout and same performance. Please visit www.ti.com for more information for TPS51916. 

    Thanks,

    Nancy