Design Example Report
4.5W (6Wpk) Multiple Output DVB-T
Power Supply using TNY264P
Title
Input: 195 – 265 VAC
Output: 2.5V/0.55A (0.7A pk), 3.3V/0.3A
(0.4A pk), 12V/100mA(0.15 A pk),
33V/1.5mA (2mA pk)
Specification
Application
Author
DVB–T Set Top Box
Power Integrations Applications Department
Document
Number
DER-46
Date
April 20, 2005
1.0
Revision
Summary and Features
This document is a prototype engineering report describing a 6 W multiple output
power supply utilizing a TNY264P for a DVB-T Set-Top supply.
• Low cost / component count
• No Y-cap / no X-cap / no common-mode choke
• Low EMI even with output grounded
• Good output cross-regulation with no post-regulators
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 ]
