LP8733: OTP setting of LP8733 for AM570x

Koyo Asaishi said:

Does LP873347 have a OTP setting register for AM570x?

Please refer to the LP873347 Technical Reference Manual to see the OTP settings of this device variant and the Powering the NXP i.MX 8M Mini and Nano with the TPS6521825 and LP873347 PMICs Tech Note to see the block diagram of this power solution.

I am not familiar with the power solution for the AM570x processor, so the expert on the LP87332D device will need to provide additional details.

Hi,

When choosing between the LP87xx devices and the TPS65916 device, Table 1 of this user guide is quite helpful: https://www.ti.com/lit/pdf/slvub99

The TPS65916 is more expensive than the LP87xx devices, however, it also supports higher current use cases and more integration powering other peripherals.

Thanks,

Nastasha 

Hi Brian, Natasha,

I understand LP873347 don't have such a following register and TPS65916 is highly integrated but expensive.

How about second question?
I would like to check the sequence which is described on figure5-5 or 5-6 of AM5706 datasheet is automatically activated when power of LP873x is input.
https://www.ti.com/lit/ds/symlink/am5706.pdf

Best regards,
Koyo

Hi Brian, Natasha,

Could you support my question?

I mean customer don't want to put effort into designing PMIC so it is best for them if AM570x can work by implementing LP8733 without any changes of register.

Best regards,
Koyo

Hi Chris,

Sorry for my late reply.

I understand LP87332D with LP873320 can be all of power supply of AM570x with automatic sequence.

I think your solution to work AM570x is LP87332D+LP873320, LP873347 and TPS659163, correct?
Which solution is best?
Our request is that we don't want to use our resource for designing because production qty is not so much.

Thanks,
Koyo