Power

Power-One has announced that it has joined DOSA (Distributed Open Standards Alliance). DOSA was established in February 2004 to develop standards for board-level DC-DC converters to ensure compatibility and facilitate second sourcing for customers.

Linear Technology has introduced the LT3740, a high output power step-down synchronous controller that operates from very low input voltages without needing an auxiliary 5V gate drive supply. In addition to a DC/DC step-down controller, the LT3740 integrates a DC/DC step-up converter for generating its own MOSFET gate drive voltage. This function permits the use of inexpensive off-the-shelf 5V gate-drive N-channel MOSFETs, offering up to 3% highe...

SL Power Electronics Corp has announced extensions to its Ault family of external switch-mode power supplies designed to meet the requirements set forth by the Environmental Protection Agency’s ENERGY STAR Program. The product family now extends from 6 to 70W with outputs from 5 to 48VDC. Designed to meet the needs of the medical systems industry as well as applications in communications, industrial, computer/computer peripherals and test a...

Texas Instruments has introduced a flexible, synchronous buck controller that simplifies power management design of LCD TVs and IP set-top boxes that use digital signal processors (DSPs) and FPGAs. TI's new TPS40195 high-performance controller provides several features to enhance the power performance of a 4.5-V to 20-V system. For instance, the device uses the input voltage available for power conversion as its bias supply, eliminating the need ...

Texas Instruments has introduced a device based on a high-frequency synchronous-boost topology with constant current sink to drive single, high-brightness white light emitting diodes (LEDs). The tiny 2 mm x 1.5 mm x 0.625mm device uses an inductive fixed-frequency pulse-width modulation (PWM) control scheme using small external components, minimizing input ripple current for applications, such as a white LED flash for camera phones, smart phones ...

A new series of ultra-compact AC/DC power supplies is announced by leading power specialist company Powersolve. The JB300/320 series is available as single or dual output units capable of providing up to 320W. Power factor correction to EN610000-3-2 class A is standard across the range and all models meet all relevant international safety approval standards.

Power-One has introduced its DC input SFD550-12BG DPA/IBA front end. This 12Vout product utilizes the same packaging and backplane connectors as Power-One’s SFP450 and SFP650 front ends, providing customers with DC-input solutions that do not require any redesign of their existing AC-input racks or backplane connectors.

Semtech has announced the SC196 and SC196A, two new 1.5A DC-DC step-down (buck) regulators. Both devices feature high efficiency due to low quiescent current and power save modes to target the lower voltage levels needed for next-generation portable device designs. The SC196 uses external feedback to allow the output voltage to be set anywhere between 1.0V and the input voltage for ultimate design flexibility. The SC196A uses two programming pins...

The new A3995 from Allegro MicroSystems Europe is a DMOS full-bridge motor driver IC designed to control two DC motors at currents of up to 2.4 A and drive voltages of up to 36 V.The new device operates over a logic supply voltage range from 3 to 5.5 V, and incorporates two independent fixed off-time PWM (pulse-width modulation) current regulators that operate in either fast or slow decay mode. The use of fixed off-time PWM current control reduce...

SynQor Inc., a power solutions company for DC/DC and AC/DC products within the Telecom, Medical and Industrial marketplaces, announced today that it has signed a non-exclusive distribution contract with Trium Power of Dourdan France.