The Sitara AM437x simplified power sequence feature provides flexibility to power designers. This reference design implementation is a BOM-optimized discrete power solution for the AM437x processor with a minimal number of discrete ICs and basic feature set. The solution represents a baseline of a discrete power solution that can be extended for additional features and capabilities of the AM437x processor.
Merkmale
- Simplified, BOM-optimized discrete power solution for the Sitara AM437x processor.
- AM437x includes an integrated LDO that simplifies processor power sequencing requirements.
- Systems without controlled power down can greatly benefit from this feature since the integrated LDO always ensures power up/down sequencing is met for VDDS and VDDSHVx supplies
- The TLV62565 step down converter provides the 3.3 volt supply and the TLV62080 provides the 1.1 volt supply.
- Two TLV702xx low drop out regulators (LDOs) provide the 1.5-V and 1.8-V supplies.
- TLV803M voltage supervisor keeps the processor in reset until all rails are operational and to reset the processor when input power is lost.
- This design is tested and includes schematics, BOM, design guide, and test data.