The TIDA-050087 SoM board inserts into the MCIMX93-EVK based board as shown below for easy evaluation. The TI SoM can replace the SoM that is included with the MCIMX93-EVK kit which uses the PCA9451A PMIC from NXP. The TPS6521940 PMIC offers multiple advantages including:

• 40% smaller BOM design size. The TPS6521940 uses a 4mm x 4mm QFN package with 0.4mm pitch and uses a smaller number of components than the PCA9451A PMIC (7mm x 7mm package).
• Reduced BOM cost due to small output filter capacitance needs, and an optimized combination of bucks and LDOs.
• Higher efficiency with 10-20% lower Rdson (HS) and lower Iq, and higher output current capability on the LDOs.

Figure 3-1 i.MX 93 SOM and Base Board

The PCB layer stack up for the SoM is identical to the stuck up for the original I.MX 93 SoM. The details can be found in the PCB information section of the MCIMX93-EVK User Manual.

Figure 3-2 SOM Board Top-Side

Figure 3-3 SOM Board Bottom-Side