EPR-71 Datasheet, PDF (3/28 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP 71 - 6.6 W DC-DC Converter Using DPA Switch- (DPA423G)

19-Jul-2005
EP-71 3.3 V, 2 A DC-DC Power Supply
1 Introduction
This document is an engineering report describing an isolated 3.3 V, 2 A (6.6 W) DC-DC
converter utilizing a DPA423G. This design is intended as an evaluation platform for
DPA-Switch devices in the 8-pin DIP, low cost surface-mount package. High operating
efficiency, low parts count and small footprint make this circuit an ideal choice for standby
supplies or other low power applications operating from telecom input voltages.
This report contains the power supply specification, schematic, bill of materials,
transformer documentation, printed circuit board layout, and performance data.
Top Side
Bottom Side
Figure 1 - EP-71 Populated Circuit Board Photograph.
Page 3 of 28
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