Design Example Report
10.5 W Multi Output Isolated Power
Supply using TNY267P
Title
Input: 160V – 275VAC
Output: 9V/400mA, 5V/800mA, 3.3V800mA
Specification
Application
Author
Set Top Box
Power Integrations Applications Department
Document
Number
DER-55
Date
April 20, 2005
1.0
Revision
Summary and Features
This document is an engineering prototype report describing a Set Top Box power
supply utilizing a TinySwitch-II TNY267.
• Low Component Count
• No X-Cap
• No Common Mode Choke
• Good Cross Regulation
• Very Low No Load Losses
The products and applications illustrated herein (including circuits external to the products and transformer
construction) may be covered by one or more U.S. and foreign patents or potentially by pending U.S. and foreign
patent applications assigned to Power Integrations. A complete list of Power Integrations’ patents may be found at
www.powerint.com.
Power Integrations
5245 Hellyer Avenue, San Jose, CA 95138 USA.
Tel: +1 408 414 9200 Fax: +1 408 414 9201
www.powerint.com
POWERINT [ Power Integrations ]
