TPS50601A-SP: TPS50601 vs TPS50601A

Brent Reschak

Part Number: TPS50601A-SP
Other Parts Discussed in Thread: TPS50601-SP,

I see that there is a TPS50601 and TPS50601A. I have a design that uses the TPS50601. Should I update to the TPS50601A? Is the TPS50601A a drop in replacement? Is the TPS50601 going to be end of life anytime soon?

thanks!

over 6 years ago

0 Ramesh Khanna over 6 years ago

TI__Expert 7445 points

Hi Brent,

Yes there are two POLs TPS50601 and TPS50601A. TPS50601A is improved version of TPS50601 which has PMOS on the High side as opposed to NMOS. Thus under radiation performance TPS50601A would be a better choice.

The two parts have same package and # of pins, however some of the pins have different functions. TPS50601-SP pin 16 is boot pin required to drive NMOS. Whereas TPS60601A-SP pin 16 is REFCAP pin. Thus PCB layout for the two will have some differences.
Will have our system engineer provide you the datasheet for TPS50601A- SP via email.

0 Kyle Rakos over 6 years ago in reply to Ramesh Khanna

TI__Mastermind 20045 points

Hello Brent,

I don't know if our systems engineer has provided you the datasheet via email; however, it can be found at www.ti.com/.../TPS50601A-SP.

Thanks,
Kyle

0 Brent Reschak over 6 years ago in reply to Ramesh Khanna

Prodigy 110 points

Given that they are so similar, is there any plan to make the TPS50601 obsolete since it appears that the TPS50601A is the superior part?

0 Kyle Rakos over 6 years ago in reply to Brent Reschak

TI__Mastermind 20045 points

Hello Brenth,

TI does not obsolete our space rated parts for convenience. There are no plans to obsolete the TPS50601-SP and while it is true that the TPS50601A-SP version offers better performance, there is still quite a large range of applications where the TPS50601-SP is a good solution. In addition, the TPS50601-SP has quite some heritage which is also a very attractive feature in the space market.

Thanks,
Kyle

0 Brent Reschak over 6 years ago in reply to Kyle Rakos

Prodigy 110 points

this hyperlink does not work.

0 Kyle Rakos over 6 years ago in reply to Brent Reschak

TI__Mastermind 20045 points

Hello Brent,

There was accidentally a period at the end of the link. You can remove the period or try this updated linke www.ti.com/.../TPS50601A-SP

Thanks,
Kyle

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TPS50601A-SP: TPS50601 vs TPS50601A