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Microchip Technology Introduces High-Efficiency, Low-Power and Low-Noise Charge Pump DC/DC Converters; Positively Regulated Devices are Among the Most Highly Efficient Charge Pumps in the Industry.


CHANDLER, Ariz. -- Microchip Technology Microchip Technology (NASDAQ: MCHP) is a manufacturer of microcontroller, memory and analog semiconductors, founded in 1989 when  Inc. (NASDAQ NASDAQ
 in full National Association of Securities Dealers Automated Quotations

U.S. market for over-the-counter securities. Established in 1971 by the National Association of Securities Dealers (NASD), NASDAQ is an automated quotation system that reports on
: MCHP MCHP Maryland Children's Health Program
MCHP Microchip Technologies (stock symbol)
MCHP Micro-sized Combined Heat and Power (American Honda Motor Co. & Climate Energy, LLC)
MCHP Maine Community Heritage Project
), a leading provider of microcontroller and analog semiconductors, today announced a new family of positively regulated charge pump A charge pump is an electronic circuit that uses capacitors as energy storage elements to create either a higher or lower voltage power source. Charge pump circuits are capable of high efficiencies, sometimes as high as 90-95% while being electrically simple circuits.  DC/DC converters that are among the most highly efficient charge pumps in the industry. The first fractional charge pumps in Microchip's portfolio, the MCP (1) See Microsoft certification.

(2) (MultiChip Package) A chip package that contains two or more chips. It is essentially a multichip module (MCM) that uses a laminated, printed-circuit-board-like substrate (MCM-L) rather than ceramic (MCM-C).
1256, MCP1257, MCP1258 and MCP1259 devices automatically switch between 1.5x and 2x boost operation for ultimate efficiency. They consume very little power and help designers build more energy-efficient, longer-lasting dual-cell alkaline, Ni-Cd, Ni-MH, single-cell Mn02 and similar coin-cell battery systems.

These new devices provide a low-cost alternative in the high efficiency, low-power and low- noise charge pump category. At light output loads, the MCP1256 and MCP1257 can be placed in "Sleep" mode, where quiescent current is lowered but regulated output voltage stays the same. Additionally, the MCP1258 and MCP1259 devices provide a bypass feature that connects the input voltage to the output, which biases the system's real-time clock A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps track of the current time. Although the term often refers to the devices in personal computers, servers and embedded systems, RTCs are present in almost any electronic  and microprocessor/microcontroller with virtually no power drain from the charge pump itself. All of the MCP125X devices have a low-noise output ripple of less than 20mVpp at load currents up to 100mA, resulting in less system interference and better overall performance.

"Designers of battery-powered consumer electronics are challenged to create highly efficient products with low power dissipation and long battery life," said Qi Deng, senior product marketing engineer with Microchip's Analog and Interface Products Division.

"The MCP1256 - MCP1259 charge pumps address these challenges, plus they provide other features important to our customers, such as soft start, short-circuit protection and thermal protection. Their extended temperature operation (-40 to +125 degrees Celsius) and small, thermally capable DFN DFN Definition
DFN Deutsches Forschungsnetz
DFN Digital Freedom Network
DFN Deafness
DFN Day for Night (cinematography)
DFN Discrete Fracture Network (geology/geophysics) 
 packaging make them extremely versatile for the wide variety of environments with which our customers work."

The MCP125X charge pump DC/DC converters are ideal for battery-powered consumer electronics devices that require low power and utilize white light-emitting-diode (LED) backlights for liquid-crystal displays (LCDs). Example devices include digital cameras, MP3 players, personal media players (PMPs) and digital multimedia broadcasting Digital Multimedia Broadcasting (DMB) is a digital radio transmission system for sending multimedia (radio, TV, and datacasting) to mobile devices such as mobile phones.  (DMB (Digital Multimedia Broadcasting) See mobile TV. ) players. The devices are also appropriate for noise-sensitive industrial applications that involve white LED backlights for LCDs, such as thermostat controllers, machine control panels, handheld meters and scanners, and communications devices such as handheld global-positioning-system (GPS) and two-way radio A voice network that provides an always-on connection enabling the user to just "push the button and talk." Also called "dispatch radio," two-way radio has traditionally been used by police, fire, taxi and other mobile fleets.  devices.

Development Tools

To help engineers evaluate and demonstrate the MCP125X charge pump DC/DC converters, Microchip offers the MCP1256/7/8/9 Charge Pump DC/DC Converter Evaluation Board (Part # MCP1256/7/8/9EV) for $35. The board is available today at www.microchipdirect.com.

Pricing, Packages, and Availability

Pricing for the MCP1256, MCP1257, MCP1258 and MCP1259 charge pump converters is $1.49 each in 10,000-unit quantities for all devices and package options. The devices are available in 10-pin MSOP MSOP Mini Small Outline Package
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 or thermally capable DFN (3 mm x 3 mm) packages. Sampling is available today at http://sample.microchip.com/, and production orders are received today at www.microchipdirect.com.

For additional information, contact any Microchip sales representative or authorized worldwide distributor, or visit Microchip's Web site at www.microchip.com/MCP125X.

Microchip Customer Support

Microchip is committed to supporting its customers by helping design engineers develop products faster and more efficiently. Customers can access four main service areas at www.microchip.com. The Support area provides a fast way to get questions answered; the Sample area offers free evaluation samples of any Microchip device; microchipDIRECT provides 24-hour pricing, ordering, inventory and credit for convenient purchasing of all Microchip devices and development tools; finally, the Training area educates customers through webinars, sign-ups for local seminar and workshop courses, and information about the annual MASTERs events held throughout the world.

About Microchip Technology

Microchip Technology Inc. (NASDAQ: MCHP) is a leading provider of microcontroller and analog semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide. Headquartered in Chandler, Ariz., Microchip offers outstanding technical support along with dependable delivery and quality. For more information, visit the Microchip website at www.microchip.com.

Note: The Microchip name and logo are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All other trademarks mentioned herein are the property of their respective companies.

Photo and block diagram A chart that contains squares and rectangles connected with arrows to depict hardware and software interconnections. For program flow charts, information system flow charts, circuit diagrams and communications networks, more elaborate graphical representations are usually used.  available through editorial contact.

Keywords:

Semiconductor Applications: Wireless Communications wireless communications

System using radio-frequency, infrared, microwave, or other types of electromagnetic or acoustic waves in place of wires, cables, or fibre optics to transmit signals or data.
; Mobile Handsets

Semiconductor Applications: Computer/Peripheral; Mobile; Hand-held/PDA/Palmtop

Semiconductor Applications: Consumer; Audio; Portable Audio/MP3

Semiconductor Applications: Consumer; Cameras/Electronic Imaging

Semiconductor Applications: Power Management; Battery Management

Semiconductor Applications: Industrial/Instrumentation; Factory Automation; Sensor Signal Conditioning Imagine feeding the output of a temperature sensor, which is in millivolts, to an Analog-to-digital converter to be processed. Is it possible for the Analog-to-Digital converter to process such a minute voltage amplitude? The answer is probably no.  
COPYRIGHT 2006 Business Wire
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Geographic Code:1USA
Date:Mar 14, 2006
Words:750
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