PMP4373 Reference Design

Texas Instruments

5V1A low standby power AC Charger with low cost BJT solution


This reference design demostrates a low cost single PCB board solution for 5V1A adapter. By using primary side regulation (PSR) mode chip UCC28720 which drives bipolar power device: average efficiency is 76%@115V and 77%@230Vac. PMP4373 achieves high precise CC and CV regulation with 0.15V cable compensation The overall size is limited in 35.7mm(L)* 25.7mm(W)*14mm(H) and no load power is less than 10mW. The design is done with single PCB layer.

Product Categories
  • Power management


Part Number Name Companion Part
UCC28720 UCC28720 Buy Datasheet

Bill Of Materials

Download the bill of materials for PMP4373 Download

Other Documents

Title Updated Type Size (KB)
PMP4373 PCB 09 Aug 2013 PDF 311
PMP4373 BOM 09 Aug 2013 PDF 193
PMP4373 Schematic 09 Aug 2013 PDF 43