Quad Output, Highly Efficient Fly-Buck for Isolated Gate Drivers in Inverters - Reference Design
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now

See the Important Notice and Disclaimer covering reference designs and other TI resources.


PMP9486 is a four output Fly-Buck converter for driving isolated driver stages (GND wrt high side sources) in DC/AC section of high frequency commercial or residential inverters (eg. solar micro inverters) using the LM5017 regulator IC.  The design accepts an input voltage of 20Vin to 40Vin DC (from single panel in microinverters or 12V/24V batteries) and provides isolated outputs of 14.5V, 9V @100mA (referenced to same ground).  It features a small size and is an inexpensive and more efficient solution for using Fly-Back or Push-Pull converters.  High efficiency of 88% is acheived at 100mA load on each of the outputs.

  • Simple, low BOM-count, and low-cost design
  • No external loop compensation
  • Off the shelf magnetics
  • Transient protect with no clamping circuitry
  • Efficiency of 88% at 100mA load on each outputs
  • Removes the need for external adapters in inverters

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Test Data

Get results faster with test and simulation data that's been verified.

Download Test Data

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files

(Output Voltage 1)
Vin (Min) (V)20
Vin (Max) (V)40
Vout (Nom) (V)14
Iout (Max) (A).1
Output Power (W)1.4
Input TypeDC

TI Devices (1)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5017  7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5017 Download Download
Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 2249 23 Sep 2014
Design files (3)
Title Type Size (KB) Date
ZIP 160 23 Sep 2014
PDF 23 23 Sep 2014
PDF 205 23 Sep 2014

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles