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Buck Regulators Feature Input Ranges up to 42V

Mon, 10/01/2007 - 4:49am

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National_semi_LM3102_WEB.jpgNational Semiconductor Corporation announced the addition of two new, high-efficiency Simple Switcher synchronous buck regulators to its PowerWise energy-efficient product family.  The highly integrated LM3102 and LM3103 are said to be the industry’s first synchronous buck regulators to feature an input voltage range up to 42V. The ICs are optimized for powering digital integrated circuits (ICs) in industrial and telecommunication applications. Integration of MOSFET switches and the use of small inductors enables a reduced system component count and very small solution size. The buck regulators utilize a constant on-time (COT) control scheme, which requires no loop compensation.  They also include a patented integrated flywheel current injection control (FCIC), which allows for the use of ceramic capacitors rather than bulkier tantalum capacitors. The LM3102 is priced at $2.65 each and is offered in a 20-pin TSSOP with exposed pad. The LM3103 is priced at $2.00 each and is offered in a 16-pin TSSOP package with exposed pad for improved thermal performance. All prices are in 1,000-unit quantities.
National Semiconductor Corporation
800-272-9959, http://switcher.national.com

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