Buck-Boost Regulator has compact 4.9 x 3.0 mm footprint.
Press Release Summary:
Available in 10-pin MSOP package, SiP1759 provides solution for obtaining stable voltage from batteries in portable electronic systems. It delivers 3.3 V fixed output or 2.5-5.5 V variable output voltage with 1.6-5.5 V input voltage range. Requiring 3 compact external ceramic capacitors, product offers 1.5 MHz operating frequency, 100 mA output current, foldback short-circuit protection, and soft-start feature.
Original Press Release:
Vishay Siliconix's New 3.3-V Buck-Boost Regulator With Compact 4.9 mm by 3.0 mm Footprint Ensures Stable Operating Conditions, 100-mA Output Current in Handheld Electronics
SANTA CLARA, CALIFORNIA - July 21, 2004 - A new buck-boost regulator that offers designers a simple, low-cost solution for obtaining a stable voltage from the batteries in portable electronic systems was announced today by Siliconix incorporated (NASDAQ: SILI), an 80.4%-owned subsidiary of Vishay Intertechnology, Inc. (NYSE: VSH).
The new Vishay Siliconix SiP1759 provides a stable 3.3-V fixed output or 2.5-V to 5.5-V variable output voltage with a 1.6-V to 5.5-V input voltage range. The new regulator is designed for handheld, battery-powered equipment including digital cameras, PDAs, MP3 players, camcorders, cell phones, and drivers for flashlights using white LEDs.
Serving as a pin-for-pin replacement for the MAX1759 charge-pump dc-to-dc converter and available in the same 10-pin MSOP package, the SiP1759 measures just 4.9 mm by 3.0 mm by 1.1 mm and requires only three compact external ceramic capacitors.
Suitable for use with equipment using lithium-ion, nickel metal-hydride (NiMH), and alkaline batteries, the device produces a regulated 3.3-V output for batteries above or below 3.3 V and provides maximum useful battery life down to 1.6 V.
The new Vishay Siliconix regulator offers 100-mA guaranteed output current, as well as 60-µA quiescent current and less than 1-µA current in shutdown mode. The device's 1.5-MHz operating frequency helps to reduce capacitor size. Foldback short-circuit protection reduces power dissipation and battery current drain, and a soft-start feature limits inrush current to avoid stressing components as the system powers up. An open-collector digital power-OK output pin signals when the output is out of regulation.
Samples and production quantities of the SiP1759 are available now, with lead times of 8 to 12 weeks for larger orders.
Siliconix is a leading manufacturer of power MOSFETs, power ICs, analog switches, and multiplexers for computers, cell phones, fixed communications networks, automobiles, and other consumer and industrial electronic systems. With 2003 worldwide sales of $392.1 million, the Company's facilities include a Class 1 wafer fab dedicated to the manufacture of power products in Santa Clara, California and an affiliated Class 1 wafer fab located in Itzehoe, Germany. The Company's products are also fabricated by subcontractors in Japan, Germany, China, Taiwan, and the United States. Assembly and test facilities include a company-owned facility in Taiwan, a joint venture in Shanghai, China, and subcontractors in the Philippines, China, Taiwan, and Israel.
Vishay, a Fortune 1,000 Company listed on the NYSE, is one of the world's largest manufacturers of discrete semiconductors (diodes, rectifiers, transistors, optoelectronics, and selected ICs) and passive electronic components (resistors, capacitors, inductors, and transducers). The Company's components can be found in products manufactured in a very broad range of industries worldwide. Vishay is headquartered in Malvern, Pennsylvania, and has plants in 17 countries employing over 26,000 people. Vishay can be found on the Internet at www.vishay.com.
