Power Supply Design

Designing a power supply for one of your circuits can be
plain sailing but also turn out to be a surprisingly complex job.
Switch-mode power supplies in particular may present a real
challenge before useful results are obtained. Fortunately,
several semiconductor manufacturers come to our rescue.
A small power supply consisting of a mains transformer, a rectifier,
electrolytics and a voltage regulator can be designed and put
together by most electronics enthusiast with excellent results. However,
switch-mode power supplies (SMPSUs) see increasing use
thanks to being smaller, lighter and more efficient than a conventional,
linear supply.

[1] Fairchild:
www.fairchildsemi.com/designcenter/
[2] Linear Technology:
www.linear.com/index.jsp
[3] National Semiconductor:
www.national.com/appinfo/power/webench/
[4] ON Semiconductor:
www.onsemi.com/site/support/models
[5] STMicroelectronics:
www.st.com/stonline/prodpres/discrete/vipower/vipfm5.htm - p2
[6]Texas Instruments:
focus.ti.com/docs/toolsw/folders/print/swift-sw.html
[7] Würth:
www.we-online.com/