This 26.54 mm × 11.68 mm × 5.6-mm height board is optimized to leverage the performance of the LM5181 PSR Flyback converter. The board operates over an input voltage range of 18 V to 32 V to deliver 24-V and 3.3‑V outputs at currents of up to 40 mA and 15 mA respectively. Operating without an auxiliary winding or opto-coupler, the LM5181 provides a tight output voltage regulation. The LM5181 offers several protection features, such as undervoltage lockout to provide correct operation during voltage-sag conditions, programmable soft-start to reduce inrush current, hiccup-mode overcurrent protection and thermal shutdown.
| Output voltage options | PMP31177. 1 | PMP31177. 2 |
|---|---|---|
| Vin (Min) (V) | 18 | 18 |
| Vin (Max) (V) | 32 | 32 |
| Vout (Nom) (V) | 24 | 3.3 |
| Iout (Max) (A) | .04 | .015 |
| Output Power (W) | .96 | .0495 |
| Isolated/Non-Isolated | Isolated | Isolated |
| Input Type | DC | DC |
| Topology | Flyback- Integrated Switch^Flyback- Non Sync | Flyback- Integrated Switch^Flyback- Non Sync |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
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
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
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 18 VDC–32 VDC to 24 V and 3.3 V, 1-W Iso. Primary- Side Reg. Flyback Ref. Design | PDF | HTML | May 23, 2023 |
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