Power

PREMA has introduced a white LED driver designed for a variety of applications. The core of the new driver PR4401 consists of a step-up converter with current output, that provides an output voltage of typically 3.6V for white LEDs. The input voltage can be as low as 0.9V, thus allowing a single cell battery operation.

To celebrate the World Cup ThePowerSupplyShop.Co.Uk. is offering the CS4, 24VDC output DIN-Rail power supply for what it calls a “football crazy” price - just £19.66. The very compact CS4 Din-Rail power supply has an input range of 90-264VAC at 50-60Hz and output of 24VDC @ 1A continuous. This low output noise power supply is suitable for SELV and PELV applications, is overload and short circuit protected and has greater than 85% efficienc...

Avago Technologies has announced that its CoolPAM power amplifier modules have been incorporated in a reference design from a leading W-CDMA chipset supplier. Handsets based on the design will ship beginning this fall, giving manufacturers a time-to-market advantage in delivering the major functionality for multi-mode third-generation (3G) mobile phones, data cards, PDAs and other mobile devices.

Texas Instruments has introduced a series of 1.5-A and 3-A low-dropout linear regulators that feature a one percent voltage regulation accuracy rate over line, load and temperature. The easy-to-use LDOs meet the sequencing requirements for high-current applications such as telecom, notebooks and servers that use FPGAs and TI's digital signal processors (DSPs).

Microchip has announced a Web-based simulation tool for power-management applications. Known as the Mindi simulation tool, the new software enables designers to quickly generate detailed circuit diagrams and specify associated passive components for a variety of power-supply and battery-charger applications.

Building upon its established portfolio of WLAN power amplifiers, Fairchild Semiconductor has introduced its FMPA2151, a highly integrated dual-band WLAN power amplifier module optimized to increase performance and reduce PCB board footprint in the latest 802.11a/bg WLAN applications, including notebooks, digital cameras and portable handsets.

Power Sources Unlimited has announced the MPU100 Series of 100W AC/DC external power supplies. The compact supply measures only 7.4 x 3.52 x 1.79in and features 4000VAC input to output isolation and safety ground leakage current of 0.1mA at 240VAC. Achieved efficiencies are 83% typical and the operating temperature is 0C to 70C, with derating after 50C.

Semtech has announced its SC905 family of power management ICs for cell phones and multi-function portable devices. These ICs feature nine ultra low dropout (ULDO) regulators capable of sourcing up to 300mA from multiple inputs via an I2C serial interface, offering great design flexibility.

UNIPOWER Telecom has added the intelligent control capabilities of its recently announced DSC1000 controller to its popular Gravitas X100 DC power system, an ultra-compact, fully integrated DC standby system designed to power a variety of telecom and other systems requiring 12, 24 or 48VDC. The system consists of three high power-density, hot-swap rectifier modules, a DC power distribution section and, now, an intelligent control section.

Texas Instruments has introduced two dual-output, step-down DC/DC converters with a patented one-pin serial interface technology that allows simple digital voltage scaling. The 95-percent efficient, 2.25-Mhz devices help extend battery life in cell phones, portable media players and other portable electronics, as well as portable industrial and medical equipment.