The PMP9474 reference design is Fly-Buck solution, with two outputs, one non-isolated power supply, 3.3V@300mA, for MCU, one isolated power supply, 5V@100mA, for RS-485. The most important feature of this design is ultra compact solution size, which is only 26mmx14.5mm. The design uses the LM5017 synchronous buck converter configured as a Fly-Buck regulator. With the benefit of primary side regulation, the supply has the output regulated without the opto-coupler or additional transformer winding. The LM5017 has a wide Vin range which is up to 100V and 600mA output current capability with integrated switch FETs. The input voltage to the reference board can be loosely regulated with a range of 18V to 36V.
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
Design file that contains information on physical board layer of design PCB
| Type | Title | Date | ||
|---|---|---|---|---|
| Test report | PMP9474 Test Results | Mar. 02, 2015 |
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