36Vdc-75Vdc Input, 6V @ 20A Output, Active Clamp Forward PMP4123 (ACTIVE)

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The PMP4123 reference design provides 6V at 120W from a standard 48V telecom input with greater than 94% efficiency. This design uses the UCC2897A active clamp controller along with an ISO721 digital isolator and TPS28225 to drive synchronous rectifiers. The circuit is built in an industry standard quarter-brick footprint.


TI Devices (3)

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
ISO721  2.5 kVrms, 100 Mbps, 1-Channel Digital Isolator   Isolation  Sample & Buy Not Available
TPS28225  8-Pin High Frequency 4-Amp Sink Synchronous MOSFET Driver  Gate drivers  Sample & Buy Not Available
UCC2897A  Advanced Current-Mode Active Clamp PWM Controller  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)
ISO721 Download -
Download Download
Download -
TPS28225 Download Download
Download Download
UCC2897A Download Download
Download Download

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Step 1: Download and install the free download.

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

Technical Documents
User guides (1)
Title Type Size (KB) Date
PDF 862 10 May 2012
Design files (4)
Title Type Size (KB) Date
ZIP 165 10 May 2012
PDF 139 10 May 2012
PDF 30 10 May 2012
PDF 101 10 May 2012

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