New Industry Products

National Semiconductor Intros LM3485 Controller

December 27, 2001 by Jeff Shepard

National Semiconductor Corp. (Santa Clara, CA) introduced a new switching controller for power-management applications in displays, notebooks and information infrastructure, designed to enable a switching regulator solution for a wide range of step-down requirements without the need for compensation.

The LM3485 features a switching regulator solution that includes a wide input-voltage range, ultra-low dropout operation, hysteretic control, package size and an easily adjustable (1.24Vin) output. The LM3485’s low quiescent current, minimal component count and low cost make it suitable for a wide range of applications that can power TFT monitors, automotive systems, notebooks, distributed power systems and battery-powered portable products. The device's hysteretic pulse frequency modulation switching topology also provides high efficiency step-down conversion over a wide load range.

The new LM3485 switching controller is now available in the MSOP-8 packaging and is priced at $0.50 each in 1,000 units.