New Industry Products

National Semiconductor Unveils LP2992 LDO Regulator

November 15, 2001 by Jeff Shepard

National Semiconductor Corp. (Santa Clara, CA) introduced a new 250mA low dropout (LDO) regulator that increases operating time for wireless, laptop and personal digital assistant (PDA) applications. The new LP2992 LDO provides low power dissipation, high power supply rejection ratio, low dropout voltage, ultra-low noise as well as design flexibility and easy system management.

The LP2992 LDO regulator features a dropout voltage of 250mV at 150mA, an output voltage accuracy of ±1.0 percent, low output capacitor requirements, and over-temperature and over-current protection. It is suitable for end-user applications, including wireless and hand-held portable battery-powered systems, hand-held meters, cellular phones, pagers, PDAs, laptops and global positioning satellite systems.

"National Semiconductor continues to lead the linear and LDO regulator market by providing designers with the right power supply for design efficiency and fast time-to-market," said Joe Bolsenga, strategic marketing manager of the Power Management Products Group at National Semiconductor. "This product will be key for customers whose current requirements have unexpectedly grown beyond 150mA and now need a pin-to-pin replacement for the LP2985. The LP2992 will also be valuable for customers requiring only 150mA current capability who need improvements in dropout voltage over the LP2985."

The LP2992 is offered in a cost-effective SOT-23-5 package and leadless leadframe package for applications that require additional power dissipation.

The LP2992 LDO regulator is now available in the SOT-23-5 packaging and is priced at $0.39 each in 1,000 units.