Micrel offers tiny 40V PWM boost regulator

June 30, 2005
Date Announced: 30 Jun 2005 Micrel Inc., (Nasdaq:MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today launched the MIC2297, a powerful new high voltage 40V PWM Boost Regulator. This chip, optimized for driving up to 10 LEDs in series, offers an innovative brightness control feature that minimizes noise and EMI. This allows for adjustable output current proportional to an applied analog DC voltage or high-speed digital PWM signal. White LEDs are widely used in PDAs, GPS systems, Smart Phones, PIC PCs, Digital Cameras, IP phones and LED flashlights. The IC is available in volume and pricing starts at $1.33 for 1K quantity.“Consumers continue to demand crisper resolution and brighter screens on their electronic and hand-held devices,” noted Ralf Muenster, Micrel’s Director of Marketing for Power Products. “The MIC2297 offers the highest levels of brightness and clarity possible with the lowest power consumption with 1uA shutdown current; an ideal combination for the market’s most demanding electronic devices.” The MIC2297 is a 600 KHz PWM boost-switching regulator optimized for driving large numbers of backlight LEDs in series for backlight applications. It offers a powerful internal 40V switch and has a guaranteed switch current of 1.2A. With a 2.5V to 10V wide input voltage range and PWM and DAC brightness control, the IC ensures a high level of brightness while eliminating several external components. In addition, it is available in one of the industry’s smallest form factors, a tiny, lead-free, 2.5mm x 2.5mm MLF™ -10L packaging option.

Julieanne DiBene Director, Marketing Communications Micrel Inc. 1-408-474-1276

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Web Site:http://www.micrel.com