Space constraints exist in many electronic designs. Beyond portable handsets, applications such as industrial instrumentation, point-of-sale terminals, and portable medical devices also have board space and height restrictions. Switching regulators with high switching frequency present an engineer working on a space-constrained design with an effective means to minimize solution size. National Semiconductor’s newest high-frequency regulators offer a combination of high switching frequency and ease of use, thereby reducing solution size and complexity. Besides solution size, a well-designed high switching frequency regulator has the advantage of a faster transient response and reduced output voltage ripple.