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38VIN Dual Synchronous Step-Down DC/DC Controller with 1% Accurate Pin-Selectable Output Voltages

MILPITAS, CA – February 23, 2010 – Linear Technology Corporation announces the LTC3865/-1, a 95% efficient, dual output synchronous step-down DC/DC controller with 2-pin selectable VOUT programming, a feature that saves 4 precision feedback resistors. The output voltages maintain a tight ±1% accuracy including initial set-point, a -40°C to 125°C operating temperature range and load/line regulation. Nine selectable output voltages ranging from 0.6V to 5V are possible. The 4.5V to 38V input voltage range encompasses a wide variety of applications including most intermediate bus voltages and battery chemistries. The strong on-board N-channel MOSFET driver enables the use of high power external MOSFETs to produce output currents as high as 20A. Applications include point-of-load regulators in medical, industrial, automotive, datacom, telecom and multifunction printers.

A constant-frequency current mode architecture allows a selectable fixed or phase-lockable (PLL) switching frequency from 250kHz to 770kHz. Power loss and supply noise are minimized by operating the stages 180° out-of-phase. OPTI-LOOP® compensation reduces the transient response and can be optimized over a wide range of output capacitance and ESR values, including all ceramic input and output capacitors. Output current sensing is accomplished by measuring the voltage drop across the output inductor (DCR) for maximum efficiency or by using an optional sense resistor. Current foldback limits MOSFET heat dissipation during short-circuit conditions. In addition, the LTC3865/-1 has adjustable soft-start or tracking to control the output voltage start-up characteristics. With capability up to 99% duty cycle, the LTC3865/-1 has a very low drop-out voltage, a useful feature for extending run times in battery powered applications.

The LTC3865/-1 is offered in thermally enhanced 5mm x 5mm QFN-32 and SSOP-38 packages. Pricing for 1,000-piece quantities starts at $2.65 each. For more information, visit www.linear.com.

Summary Features LTC3865/-1

  • Two Pin-Selectable (9 Settings) Output Voltage Programming from 0.6V to 5.0V
  • Save 4 precision Feedback Resistors
  • Synchronous Rectification for up to 95% Efficiency
  • Wide 4.5V to 38V Input Voltage Range
  • ±1% Total DC Output Voltage Accuracy over -40°C to +125°C
  • Dual, 180° Out-of-Phase Controllers Reduce Noise & Input Capacitance
  • DCR or RSENSE Current Sense Options
  • Strong OnBoard N-Channel MOSFET Driver
  • Phase Lockable Fixed Operating Frequency from 250kHz to 770kHz
  • Programmable Soft-Start or Tracking
  • Adjustable Current Limit
  • Current Mode Control
  • Power Good Signals

About Linear Technology

Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, µModule® products, and many other analog functions. Applications for Linear Technology’s high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems.

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Dialog Semiconductor and TSMC Collaborate on Industry-Leading BCD Process for Power Management ICs

KIRCHHEIM/TECK, Germany and HSINCHU, Taiwan, R.O.C., Feb. 23 /PRNewswire-FirstCall/ — Dialog Semiconductor plc (FWB: DLG), a leading provider of highly integrated innovative power management semiconductor solutions, today announced that the company is working closely with foundry partner Taiwan Semiconductor Manufacturing Company (TWSE: 2330, NYSE: TSM) on a bipolar-CMOS-DMOS (BCD) technology specifically tailored to high-performance power management ICs for portable devices.

The 0.25-micron high-voltage process node enables higher voltage functionality to be integrated efficiently into single chip power management ICs, increasing cost efficiencies and expanding the addressable market for Dialog solutions.

The ability to integrate higher voltage and more efficient components is an important feature of Dialog’s next generation PMICs, and enables the creation of smaller form factor devices with reduced power consumption. A broad range of proprietary IP blocks, based on TSMC’s 0.25um BCD process nodes, have already been developed for incorporation into Dialog’s next generation PMICs, with the first devices already available. The designs deliver the industry’s leading power management performance for portable devices.

“Close collaboration of our innovative technology with foundry partners is key to Dialog’s strategic business model, which accelerates the development of the highest level of power management integration in the industry,” said Dr Jalal Bagherli, CEO of Dialog Semiconductor. “Through our ongoing and longstanding collaboration with TSMC, we are able to provide our customers with validated low-power technologies to manage their power management needs and meet aggressive time-to-market goals.”

“TSMC consistently delivers cutting edge technology platforms that include integrated design collaterals,” said Jason Chen, Vice President of Worldwide Sales and Marketing at TSMC. “Dialog is one of the technology leaders, bringing the best power management experiences possible to portable users through extended battery lifetime in portable devices. We are proud to be a strategic supplier to them.”

About Dialog

Dialog Semiconductor creates energy-efficient, highly integrated, mixed-signal circuits optimised for personal mobile, lighting & display and automotive applications. The company provides flexible and dynamic support, world-class innovation and the assurance of dealing with an established business partner.

With its unique focus and expertise in system power management, Dialog brings decades of experience to the rapid development of integrated circuits for power management, audio, display processing and motor control. Dialog’s processor companion chips are essential for enhancing both the performance of hand-held products and the consumers’ multimedia experience. With world-class manufacturing partners, Dialog operates a fabless business model.

Dialog Semiconductor plc is headquartered near Stuttgart with a global sales, R&D and marketing organisation. In 2009, it had approximately $218 million in revenue and was one of the fastest growing European public semiconductor companies.  It currently has approximately 340 employees. The company is listed on the Frankfurt (FWB: DLG) stock exchange.

About TSMC

TSMC is the world’s largest dedicated semiconductor foundry, providing the industry’s leading process technology and the foundry’s largest portfolio of process-proven libraries, IPs, design tools and reference flows. The Company’s managed capacity in 2009 totaled 9.96 million (8-inch equivalent) wafers, including capacity from two advanced 12-inch GIGAFABs™, four eight-inch fabs, one six-inch fab, as well as TSMC’s wholly owned subsidiaries, WaferTech and TSMC China, and its joint venture fab, SSMC. TSMC is the first foundry to provide 40nm production capabilities. Its corporate headquarters are in Hsinchu, Taiwan. For more information about TSMC please visit http://www.tsmc.com.

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connectBlue™ Announces Development Kit Collection for Wireless LAN Solutions

connectBlue, the innovative and market leading provider of wireless industrial solutions, launches ten Wireless LAN Development Kits designed to evaluate the connectBlue third generation Wireless LAN modules OWL221a and OWL222a. The easy-to-use kits offer complete system functionality with an out-of-the-box testing capability designed to accelerate the customers’ product design, development and delivery.

The connectBlue flexible Wireless LAN Development Kit collection spans over a wide variety of customer development needs. For instance, the manufacturer can choose a complete out-of-the box testing system or choose a software kit for integration into one’s own existing system for evaluation.

“Thanks to the wide assortment of Wireless LAN Development Kits, the customer can get started immediately and select a solution that fits their needs perfectly,” said Rolf Nilsson, President of connectBlue. “And as a result, the bouquet of Wireless LAN Development Kits will allow our industrial customers to design advanced products with a reduced development time and cost.”

The complete kits contain both hardware and software and are either shipped directly to the customer or via a connectBlue certified distributor. The software development kits can easily be downloaded via FTP server technology.

The connectBlue Wireless LAN modules included in the complete kits are compliant with IEEE 802.11a/b/g and single stream 802.11n, utilizes internal antenna or external antenna, 3.3 – 5.5 VDC, SPI or SDIO interface and are fully radio type approved (FCC, IC and R&TTE). Additional features include dual-band operation (2.4GHz and 5GHz), minimal host processor load, integrated controller & SRAM/ROM, advanced power save features and compatibility with the connectBlue Bluetooth and ZigBee / IEE 802.15.4 module standard.

The connectBlue Wireless LAN Development Kit collection consists of the following:

  • OWL222a (SDIO) WinCE (ARM) Evaluation kit includes a Module Adapter, connectBlue wireless LAN OEM module, Binary driver for WinCE 5.0/6.0 (ARM), driver upgrades and documentation
  • OWL222a (SDIO) WinCE (ARM) binary driver includes Binary driver for WinCE 5.0/6.0 (ARM), driver upgrades and documentation
  • OWL221a/OWL222a Support package for binary code includes email and phone technical support
  • OWL221a (SPI) and cB-OWL222a (SDIO) WinCE Evaluation system includes Keith & Koep embedded computer system, two Module Adapters, two connectBlue wireless LAN OEM modules, SD memory card with WinCE 6.0 drivers in binary format, driver upgrades, test software, extra test tools and documentation
  • OWL221a (SPI) Linux Evaluation system includes Keith & Koep embedded computer system, a Module Adapter, connectBlue wireless LAN OEM module, SD memory card with Linux 2.6 drivers in binary format, driver upgrades, test software, extra test tools and documentation
  • OWL221a (SPI) Embedded Driver Evaluation System includes a connectBlue Embedded Wireless LAN Driver and application for Windows XP in binary code (x86), USB-SPI host dongle, Module Adapter, connectBlue wireless LAN OEM module, driver upgrades and documentation
  • OWL221a (SPI) and OWL222a (SDIO) WinCE driver source code includes source code reference driver for WinCE 6.0 ported to the Keith & Koep platform, Module firmware as binary image, technical support, driver upgrades, test software, extra test tools and documentation
  • OWL221a (SPI) and OWL222a (SDIO) Linux driver source code includes source code reference driver for Linux 2.6 ported to the Keith & Koep platform, Module firmware as binary image, technical support, driver upgrades, test software, extra test tools and documentation
  • OWL221a (SPI) Embedded Driver source code includes connectBlue Embedded Wireless LAN driver in source code (standard ANSI C), examples of ports to Linux 2.6 ARM and Windows with developer studio, lower and upper level MAC firmware in binary format, technical support, driver upgrades and documentation
  • OWL221a and OWL222a Support package extension for driver source code, and driver updates includes additional email and phone technical support and driver upgrades

About connectBlue

connectBlue™ is a leading provider of wireless solutions for demanding applications in hygiene, rough environment, mobility, control, personal safety and security areas. Based on Bluetooth technology, Wireless LAN and IEEE 802.15.4, connectBlue provides ready-to-use products and modules as well as custom design solutions in both hardware and software. connectBlue has offices in Malmö (Sweden), Chicago (USA) and Pfaffenhofen/Munich (Germany). For more information, please visit www.connectblue.com

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