Comparison: 0.8V/8W GaN vs Silicon Power Supply Reference Design
PMP21440
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- PMP21440 Test Results
(PDF 1206 KB)
23 May 2018
Description
This reference design provides customers with a comparison study on the usage of GaN vs SI in power supply designs. This specific design uses TPS40400 controller to drive CSD87381 for the silicon power supply and LMG1210 with EPC2111 for the GaN power supply to provide 0.8V/10A. This design compares the silicon and GaN power stages and illustrates the design tradeoffs and necessary optimizations when designing with GaN.
Features
- PMBus programmable OPC, UVLO, OV, switching frequency, and soft start
- Deadtime adjustment through pin strapping on LMG1210
- Power board and daughter card impelemtatation
- Optimizing deadtime showed 5% increase in GaN efficiency
See the Important Notice and Disclaimer covering reference designs and other TI resources.
