The core of the driver PR4401 from Prema 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. Only one external component, an inductor, is require...

ON Semiconductor unveiled its GreenPoint reference design for 220W LCD-TV power supplies. This flat-screen television design delivers standby power of less than 1 W, addresses all functional blocks of the power supply and meets international regulations for low standby power dissipation. The enablin...

Linear Technology announces the LTC3552-1, an power management solution for handheld applications. The LTC3552-1 includes a standalone Li-Ion battery charger and a dual synchronous buck regulator housed in a 3mm x 5mm DFN package. The linear battery charger can deliver up to 950mA charge current fro...

International Rectifier has launched the IR1167 SmartRectifier IC to simplify and improve efficiency in secondary synchronous rectification (SR) in high power flyback and resonant half-bridge converter circuits. Typical applications include AC-DC power converters for laptops, mini-PCs, LCD and PDP t...

In outside use

Maxim introduces the MAX8728 power supply, which generates all supply rails for thin-film transistor (TFT), liquid-crystal display (LCD) panels in TVs and monitors. It includes step-down and step-up regulators, positive and negative charge pumps, and a dual-mode, logic-controlled, high-voltage switc...

Tyco Electronics Power Systems announced the availability of the JHW250 series of DC-DC converters, delivering up to 250W output power in an industry standard half-brick format for radio frequency power amplifier applications. Suitable for wireless base stations and other similar telecom equipment, ...