LP87523-Q1: LP87523JRNFRQ1

Darko Tasovac

Part Number: LP87523-Q1
Other Parts Discussed in Thread: AWR2243,

Hi,

I'm planning to use LP87523-Q1 PMIC instead of LP87524P for powering 2x AWR2243 chips.

Can you tell me what are default outputs of four buck outputs of LP87523 without any I2C programming?

I know that for LP87524B/J/P are listed default values and are good fit for xWR chips, but currently the design should support LP87523.

Thanks in advance

Regards

over 2 years ago

+1 Tomi Koskela over 2 years ago

TI__Genius 11020 points

Hello,

We have one catalog release for the LP87523J-Q1 and you can see the default configuration in the technical reference manual: https://www.ti.com/lit/ug/snvu665/snvu665.pdf

This is however 2MHz variant, and for the radar supply you would need preferably 4MHz switching frequency to reduce the output noise/ripple. We have one custom LP87523 OTP variant released with 4MHz switching frequency and with 1V (2ph output), 1.2V and 1.8V output voltages. If that is something you are interested, I suggest you contact the regional sales team on the availability of this device.

Thanks.

Regards,

Tomi Koskela

Power management

Power management forum

LP87523-Q1: LP87523JRNFRQ1