TPS62874-Q1: How many bucks we can use in stack.

Hi Sayali,

Theoretically, there is no limit on stack device configuration. However, board design get complicated after certain stacks. 

Could you share detail on your application and load requirements ? How many stack are you planning to use? 

Best regards,

Tanvee

Hi Tanvee,

Thanks for your response.

MPN: -TPS62874B1QWRZVRQ1
Input voltage: -3.3V
Output voltage: -0.8V
Total output current: -46.72A
Number of bucks: -4

These are our application details.

Hi Sayali,

Then I would suggest to use TPS62876-Q1 device (which can support 25A ) rathe than TPS62874-Q1. For you application you just need 2 devices in stack operation.

Is it possible to share project time line and end equipment? because we have some new high current devices in roadmap which can also support this rail but want to check if it can make with your project time line. 

Please let me know if information is confidential then we can take it offline.

Best regards,

Tanvee 

Hi Tanvee,

Thanks for your response.

Can we use four TPS62874-Q1 devices in stack for our application?

Project timeline is 2030 and it is Vehicle ECU.

Regards,

Sayali

Hi Sayali,

You can use 4 stack devices but TPS62876-Q1 is same device architecture with higher current limit and give same performance.

It is good to use 2 stack compare to 4 stack as routing would be easier.

Best regards,

Tanvee

Hi Tanvee,

Thanks for support.

Sayali