SLDA059 February   2022 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442 , LP8733 , TPS65218 , TPS6521815 , TPS6521855

 

  1.   Trademarks
  2. 1Introduction
  3. 2LP8733xx and TPS65218xx Device Overview
  4. 3LP8733xx and TPS65218xx PMIC Variants
  5. 4PMIC Selection Guide
  6. 5Example Power Maps
    1. 5.1 AM64x Single-PMIC Solution
    2. 5.2 AM64x Dual-PMIC Solution
    3. 5.3 AM243x (ALX Package) Single-PMIC Solution
    4. 5.4 AM243x (ALV Package) Single-PMIC Solution
  7. 6TPS6521815 Programming Information
  8. 7Conclusion

5.4 AM243x (ALV Package) Single-PMIC Solution

An example power map using LP87334D to power the AM243x (ALV Package) processor with LPDDR4 memory support is shown in Figure 5-7, and with DDR4 memory support in Figure 5-8. The AM243x (ALV Package) body size is 17.2 mm × 17.2 mm, which has a benefit of pin-to-pin compatibility with the AM64x.

For applications using LPDDR4 memory, TPS62822 powers VDDS_DDR of the AM64x and VDD2 of the LPDDR4. TPS62822 is enabled by LP87334D GPO2, and can be substituted with TPSM82822, a module with a step-down converter with an integrated inductor. The memory's VDD1 is powered by LDO0 of the LP87334D.

Figure 5-7 Using LP87334D to Power AM243x (ALV Package) with LPDDR4 Memory Support

For applications using DDR4 memory, TPS62822 (TPSM82822) powers VDDS_DDR of the AM64x and VDD of the DDR4. A discrete LDO TPS745 is enabled by LDO0 to supply the DDR4 VPP rail.

Figure 5-8 Using LP87334D to Power AM243x (ALV Package) with DDR4 Memory Support