New Industry Products

National Semi Intros LM2727 and LM2737 Controllers

August 14, 2002 by Jeff Shepard

National Semiconductor Corp. (Santa Clara, CA) introduced two new high-performance, synchronous-switching, regulator controllers with extremely low output-voltage capability to power the latest FPGA, microcontroller and DSP cores, the LM2727 and LM2737. Operating from a 5V to 16V input and regulating down to as low as 0.6V, the two 2MHz switching controllers are designed to provide synchronous voltage conversion for set-top boxes; ADSL and cable modems; hard disk drives; large LCD displays where 2A to 25A are needed; as well as general-purpose, step-down, voltage conversion in line-powered systems.

The LM2727 and LM2737 feature a 0.6V internal band gap that allows output voltages from 85 percent of Vin down to 0.6V; a switching frequency from 50kHz to 2MHz; and synchronous conversion that enables up to 95 percent conversion efficiency in low duty cycle or low output-voltage conditions.

The new LM2727 and LM2737 switching regulator controllers are available for shipment now. Housed in a TSSOP-14 package, the two devices are priced at $1.25 each in 1,000 quantities.