Power

Linear Technology has announced the LT3503, a current mode PWM step-down DC/DC converter with an internal 1.45A power switch, packaged in a tiny 6-lead 2mm x 3mm DFN package. Its wide input range of 3.6V to 20V makes the LT3503 ideal for regulating power from a wide variety of sources, including unregulated wall transformers, fixed 5V and 12V rails and lead acid batteries. Its 2.2MHz switching frequency enables the use of tiny, low cost inductors...

Allegro MicroSystems Europe has introduced four new voltage regulator integrated circuits for use in the LNB (low noise block) sections of analogue and digital satellite receivers. The A8290 and A8291 are single LNB supply control voltage regulators, while the A8286 and A8292 are dual LNB supply voltage regulators. All are designed for high efficiency, using Allegro's advanced BCD process.

Fairchild Semiconductor has introduced the Green FPS e-Series, a new family of Fairchild Power Switch products that provide high energy efficiency and system reliability in DVD player, set top box, LCD monitor and other 25W and lower power supply designs. Based on Fairchild’s proprietary valley switching technique, the Green FPS products raise power conversion efficiency by 1% and reduce EMI up to 5dB compared to conventional hard-switch conve...

Microchip has announced the MCP1603 - a 2 MHz, 500 mA switching regulator. It provides adjustable and fixed output voltages, operating efficiency of up to 90%, and is available in Thin SOT-23 (TSOT-23) and 2 mm x 3 mm DFN packages. The new device is ideal for extending battery life and reducing heat dissipation in a variety of portable, handheld electronic devices.

Texas Instruments has introduced the industry's first single-chip, interleaved, transition-mode power factor correction (PFC) control circuit that helps lower power system cost and save energy in consumer applications, such as digital TVs, personal computers and entry-level server platforms. TI will showcase the controller and other innovative power management technology at the Power Conversion and Intelligent Motion (PCIM) conference in Nurember...

Power-One has introduced the HP6 Series of 600W front ends. These AC-DC power supplies provide up to four main outputs, from 0.8 to 12VDC, plus a 5VDC standby output. This multiple-output, hot-swap capability accelerates time to market in networking applications requiring several high-current rail voltages and/or instances where sufficient board space is not available to implement distributed power and intermediate bus architectures.

AnalogicTech has introduced a P-channel current-limited MOSFET power switch for high-side load-switching applications in PC modem cards. Integrating all the circuitry required to limit current, protect the PC card connector, continuously charge the capacitor, and notify the system when it is ready for use, the AAT4620 ensures that a super capacitor - typically used to average out high pulse currents - can be quickly charged without exceeding the...

Fairchild Semiconductor has introduced the FAN2106 , the first product in a new family of TinyBuck DC-DC buck regulators that integrate an advanced analog IC, MOSFETs and a boot diode into an ultra-compact molded leadless package (MLP). Measuring only 5mm x 6mm, the FAN2106 is the industry’s smallest 6A, 24V-input integrated synchronous buck regulator on the market today. This highly integrated low-profile, small-footprint device consumes appro...

SynQor announced the PQ60280FTx26 series of Isolated Full Brick DC/DC Converters, targeting RF Power Amplifier (RFPA) applications within cellular radio infrastructure equipment. In this demanding area, efficiency and reliability are key attributes in which the SynQor module excels, with >94% efficiency at full load, and a calculated MTBF of > 2Mhrs (Telcordia).

Vicor has announced the introduction of a 110 Vdc input series of 24 models of Maxi, Mini, and Micro DC-DC converters. This new series includes eight standard output voltages (3.3, 5, 12, 15, 24, 28, 36, 48 V) in combination with three different package sizes (quarter brick, half brick, full brick) with output power ranging from 50 W up to 400 W, depending on the model.