LP87561-Q1: VIN range

GARETH OU

Part Number: LP87561-Q1

Customer products will not have >4V voltage, only 3.3V voltage can be supplied to PMIC

May I ask if PVIN_B1 , VSYS_S and VSYS pins are empty, will there be any problems?

There are still other suitable PMICs that can be introduced

Note: The product will not use a single AP200 chip. According to Camera's FAE, AS0148AT is a two-in-one package of AS0147 + AP200 into one IC

11 months ago

0 Matt Sunna 11 months ago

TI__Guru* 78473 points

Hi Gareth,

So, I think this is a follow-up from your previous question here: https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1257968/tps650330-q1-pimc

I just want to clear up confusion since another engineer will be answering and you have not modified the question regarding the new device you are asking about. The picture you shared is not for the LP87561-Q1 and the LP87561-Q1 can work with VIN down to 2.8V.

Please take a closer look at the LP87561-Q1 datasheet to see if it meets your needs and feel free to post follow-up questions if needed.

Thanks,

Matt

0 GARETH OU 11 months ago in reply to Matt Sunna

Mastermind 9395 points

Hi Matt

I have one question for The LP87561-Q1, if the VIN is 3.3V, can it output 2.8V/1.8V/1.2V?

0 James Steenbock 11 months ago in reply to GARETH OU

TI__Genius 17535 points

Hi Gareth,

As long as you power supply can provide the necessary current for the BUCK converter outputs (leaving headroom for inherent efficiency losses), you can run all of those voltage outputs without an issue. I would look at the total worst-case power consumption you are expecting and compare that to the power capability of the 3.3V supply.

Regards,

James

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LP87561-Q1: VIN range