Texas Instruments LM5017MR | Demoboard PMP9478

Description

The PMP9478 reference design is a low profile quad output isolated Flybuck power supply for industrial applications. The power supply has a synchronous buck regulator, LM5017, and a low profile (6mm) transformer. It generates four isolated outputs of ±5V, ±15V, 50mA each. The LM5017 is a 100V wide Vin, 600mA synchronous buck regulator. The input voltage range of the design is 20V to 32V, making it suitable for 24V input industrial application. The Flybuck can regulate the secondary side outputs without opto-coupler or aux winding, and is capable of achieving good cross regulation within ±5%. With LM5017's Constant On-Time control, no loop compensation is required, which simplifies the design and helps reduce the external part count and BOM cost.

Features

Multiple isolated bias power using Fly-Buck, ideal for PLC and industrial applications2W output power, +/-15V, +/-5V @ 50mA each, with LM5017 capable of 7.5V to 100V inputPrimary Side Regulation without Opto, Good Cross Regulation, within +/-5%Less than 6mm low profile transformerConstant On Time Control, No Loop Compensation Required, and Fast Transient ResponseThis circuit board is tested, and the design files and test report are included

More information

• Datasheet
• IC product information