Step-Down synchr. converter in SOT563 package

DC-DC Power Converters
1

Hi. I’m looking for the part number of the step-down converter in SOT563 with AVXK top marking.
I can’t find it here Step Down (Buck) Converters | Switching Regulators | MPS | Monolithic Power Systems
maybe because not all have datasheet available - for example https://www.monolithicpower.com/en/mp1603.html

2

Hi wojtasjd,

Welcome to the MPS Technical Forum. From where did you acquire your IC? Please post a picture of the IC package with the top markings visible.

3

Thanks for reply. It’s from audio equipment.

AVXK
AVXK900×600 60.5 KB

4

This is not our device.

Please use our Package Information page for future top marking decoding.

image
image905×387 22.5 KB

5

I saw this top mark decoding documents but there are no rule for SOT563 there.

For example MP1476 with the same pinout

mp1476

Why there are no datasheets for MP1650, MP1651, MP1652, MP1653 and some others?
Maybe it’s one of those…