National Semiconductor introduced the LM2852, the first member of its Simple Synchronous buck regulator family. National will expand this family throughout 2005 with additional Simple Synchronous  regulators with the same input–output voltage range and output currents from 1 to 3 Amps. The LM2852 is a synchronous, high-frequency step-down switching voltage regulator capable of driving up to a 2A. The device can accept an input voltage between 2.7V and 5.5V and deliver a customizable output voltage that is factory-programmable from 0.8V to 3.3V in 100mV increments. The LM2852 is available with a choice of two switching frequencies, 500kHz and 1.5MHz. Soft-start and enable functions permit supply sequencing and reduce in-rush current.  It also features internal compensation for low component count and simplified design. The switcher is available for simulation on National’s WEBENCH design tool. The LM2852, offered in a thermally enhanced TSSOP-14 package, is priced at $2.50 each in 1,000-unit quantities