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ISL54217 - USB 2.0 High-Speed x 2Channels/Stereo Audio Dual SP3T (Dual 3 to 1 Multiplexer) - The Intersil ISL54217 is a single supply dual SP3T analog switch that operates from a single supply in the range of 2.7V to 4.6V. It was designed to multiplex between audio stereo signals and two different USB 2.0 high speed differential data signals. The audio channels allow signal swings below ground, allowing the multiplexing of voice and data signals through a common headphone connector in Personal Media Players and other portable battery powered devices. 

Cree Announces Sample Release of New, Highly-Efficient 120-watt GaN HEMT Microwave Transistor - DURHAM, N.C., DECEMBER 17, 2008 — Cree, Inc. (Nasdaq: CREE), announces the sample release of a highly efficient 120-watt GaN HEMT microwave transistor for general-purpose military and industrial applications such as electronic warfare, tactical communications, radar, instrumentation and direct video broadcast applications. This transistor provides outstanding RF power performance over wide instantaneous bandwidths compared to other technologies such as GaAs MESFET or Si LDMOSFET.

Vishay Releases Industry’s First White PowerSMD LEDs to Utilize InGaN/TAG on Sapphire Technology in CLCC-2Flat Ceramic Package With Ultra-Low 0.75-mm Profile - VLMW84.. devices combine low thermal resistance down to 25 K/W and high optical power from 5600 mcd to 14000 mcd for high-volume applications.

MAX16834 - Highly Efficient, Flexible HB LED Driver Supports Green Lighting Designs - The MAX16834 is a current-mode, HB LED driver for boost, buck-boost, SEPIC, and high-side buck topologies. This device reduces the size, complexity, and cost of LED driver solutions, simplifying the implementation of green lighting technology.

Amplifiers and Linear TPA2100P1 19-Vpp Mono Class-D Audio Amplifier for Piezo/Ceramic Speakers (TPA2100) - The TPA2100P1 (sometimes referred to as TPA2100) is a mono, Class-D audio power amplifier with integrated DC-DC converter designed for piezo and ceramic speakers. The TPA2100P1 (TPA2100) is capable of driving a ceramic / piezo speaker with 19 VPP (6.7 VRMS) from a 2.5 V power supply at less than 1% THD+N.The DC-DC converter...

Power Management BQ24104 Synchronous Switchmode, Li-Ion & Li-Pol Charge Mngmt IC (bqSwitcher) - The bqSWITCHER series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge...

Power Management BQ27541 Single Cell Li-Ion Battery Fuel Gauge for Battery Pack Integration - The Texas Instruments bq27541 Li-Ion battery fuel gauge is a microcontroller peripheral that provides fuel gauging for single-cell Li-Ion battery packs. The device requires little system microcontroller firmware development for accurate battery fuel gauging. The bq27541 resides within the battery pack or on the system's...

Power Management TPS54232 2A, 28V, 1MHz Step Down SWIFT (tm) DC/DC Converter with Eco-Mode (tm) - The TPS54232 is a 28-V, non-synchronous buck converter that integrates a low Rds(on) high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode feature is automatically activated. Furthermore, the 1 µA shutdown supply current allows the device to be used in battery powered applications....

Power Management TPS650250 Power Management IC for Li-Ion Powered Systems - The TPS650250 is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS650250 provides three highly efficient, step-down converters targeted at providing the core voltage, peripheral, I/O and memory rails in a processor based system. All three...

Power Management TPS71401 10V, Single Output LDO, 80mA, Adj.(1.2 to 8.88V),Low Quiescent Current - The TPS714xx low-dropout (LDO) voltage regulators offer the benefits of wide input voltage range, low-dropout voltage, low-power operation, and miniaturized packaging. These devices, which operate over an input range of 2.5V to 10V, are stable with any capacitor ≥ 0.47µF. The 2.5V to 10V input voltage range, combined...

Power Management TPS71433 10V Single Output LDO, 80mA, Fixed(3.3V), Low Quiescent Current - The TPS714xx low-dropout (LDO) voltage regulators offer the benefits of wide input voltage range, low-dropout voltage, low-power operation, and miniaturized packaging. These devices, which operate over an input range of 2.5V to 10V, are stable with any capacitor ≥ 0.47µF. The 2.5V to 10V input voltage range, combined...

GCT’s GDM7205K is the first and only monolithic single-chip solution that is WiMAX Forum Certified - GCT’s GDM7205K is the first and only monolithic single-chip solution that is WiMAX Forum Certified™ San Jose CA, September 3, 2008 - GCT Semiconductor, a leading supplier of Mobile WiMAX solutions to the global market, today announced that the industry's first Mobile WiMAX 2.

Fujitsu Develops CMOS Logic-Based High-Voltage Transistor for Power Amplifiers - Fujitsu Laboratories Limited and Fujitsu Microelectronics Limited today announced the development of a CMOS logic process-based high-voltage transistor featuring high breakdown voltage, suitable for power amplifiers used in wireless devices. As a world's first, Fujitsu developed a 45 nanometer (45nm)-generation CMOS-based transistor capable of handling 10V power output, thus enabling the transistor to handle high-output requirements necessary for power amplifiers used in WiMAX and other high-frequency applications. The new technology makes it possible for power amplifiers to be formed on the same die as CMOS-logic control circuitry to achieve single-chip integration, thereby making high-performance, low-cost power amplifiers feasible.

Micrel Tunes In With New Fully Integrated, Wide-Input Range Boost Regulators - Micrel Tunes In With New Fully Integrated, Wide-Input Range Boost Regulators San Jose, Calif., Dec. 16, 2008 — Micrel Inc.

NEC Electronics Extends Support for Automotive Audio and Navigation Control Systems with New 32-Bit Microcontrollers Boasting Industry's Highest Built-In Flash Memory Capacity - New V850E/Sx3-H Microcontrollers Offer 1.5 Megabytes of Flash Memory, Improved CPU Performance and Integrated Noise-Reduction Circuitry KAWASAKI, Japan, DUESSELDORF, Germany, SANTA CLARA, Calif.

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Vishay Siliconix Releases New 20-V and 30-VP-Channel Power MOSFETs With Industry’s Lowest On-Resistance

Vishay Siliconix Releases New 20-V and 30-VP-Channel Power MOSFETs With Industry’s Lowest On-Resistance

The devices will be used as the adaptor switch and for load switching applications in notebook computers and industrial/general systems. Adaptor switches (switching between the adaptor/wall power and the battery power) are always on and drawing current. The lower on-resistance of the Si7135DP and Si7633DP translates into lower power consumption, saving power and prolonging battery life between charges. [Read more...]
 

LT3506: 1.1MHz, 25V Dual Step-Down DC/DC Converter Delivers 1.6A per Channel from a 5mm x 4mm DFN Package -

07.10.2006 18:30 - Source: Linear Technology
MILPITAS, CA – October 5, 2006 – Linear Technology Corporation announces the LT3506 and LT3506A, dual current mode PWM step-down DC/DC converters with two 2A power switches packaged in a 16-lead 5mm x 4mm DFN package. Each channel is capable of delivering up to 1.6A of output current. Their wide input range of 3.6V to 25V makes them ideal for regulating power from a wide variety of sources, including four cell batteries, 5V and 12V rails, unregulated wall transformers, lead acid batteries and distributed power supplies. The LT3506 switches at 575kHz while the LT3506A switches at 1.1MHz enabling the use of tiny, low cost inductors and ceramic capacitors, while delivering low, predictable output ripple.

The LT3506 and LT3506A’s low VCESAT (210mV @1A) internal switches offer efficiencies of up 88%, minimizing thermal constraints and maximizing battery run-time. Low voltage outputs are easily attended due to an internal reference of 0.80V. Each channel has independent shutdown and soft-start pins as well as independent power good indicators to ease power sequencing. The channels switch 180 degrees out of phase with respect to the other, reducing input ripple and minimizing capacitance needs. Internal cycle-by-cycle current limit provides protection against shorted outputs while soft-start eliminates input current surge during start up. The low current (<30uA typ) shutdown provides easy power management in battery-powered systems.

The LT3506EDHD and LT3506AEDHD are both available from stock in a thermally enhanced 5mm x 4mm DFN-16 package. Pricing starts at $2.95 each for 1,000-piece quantities.

Summary of Features: LT3506/A

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