This reference design is an automotive power supply for C2000™ microcontroller generating two output voltage rails from a nominal 12-V battery. LMR23630-Q1 converts the input voltage into a regulated 3.3-V rail; TPS628501-Q1, supplied by the first output, generates a 1.2-V output rail. Both converters are operating in forced pulse-width modulation (FPWM), to minimize output ripple and optimize load transient response. All the tests were done on the PMP31047 revision B board.
| Output voltage options | PMP31247.1 | PMP31247.2 |
|---|---|---|
| Vin (Min) (V) | 6 | 3.3 |
| Vin (Max) (V) | 26 | 3.3 |
| Vout (Nom) (V) | 3.3 | 1.2 |
| Iout (Max) (A) | 2.5 | 1 |
| Output Power (W) | 8.25 | 1.2 |
| Isolated/Non-Isolated | Non-Isolated | Non-Isolated |
| Input Type | DC | DC |
| Topology | Buck- Synchronous | Buck- Synchronous |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
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Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | Automotive 9-W Dual Buck Converter Reference Design for C2000 MCU | PDF | HTML | Oct. 10, 2023 |
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