This reference design enables high-efficiency and low EMI. The design operates over a wide input voltage range reducing the need for external input surge protection. The design uses the LM686x5 buck converter which is intended for functional safety relevant applications. The design includes safety features such as redundant Vin and Vout monitoring with undervoltage lockout (UVLO) and overvoltage lockout (OVLO), feedback path failure detection and thermal shutdown.
| Output voltage options | PMP31365.1 |
|---|---|
| Vin (Min) (V) | 19.2 |
| Vin (Max) (V) | 28.8 |
| Vout (Nom) (V) | 5 |
| Iout (Max) (A) | 3 |
| Output Power (W) | 15 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | 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 overview of design layout for component placement
Complete listing of design components, reference designators, and manufacturers/part numbers
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Detailed schematic diagram for design layout and components
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | Industrial 24V to 5V Safe Power Supply Reference Design | PDF | HTML | Oct 20, 2025 |
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