New-Tech Europe | March 2017 | Digital Edition

new products

startup, thermal shutdown, over current protection, internal soft-start, enable pin and power GOOD output. Availability The DC-DC regulator IR3883 is available in high quantities, samples can be ordered. An online design tool (Power Desk) and a reference design IRDC3883 are available. More information is available at www. infineon.com/analog- ipol.

class performance.

Integrated MOSFET voltage regulator for high-density applications reduces component count Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) introduces the IR3883, an easy-to-use, fully integrated and highly efficient DC-DC regulator. It aims at high density Point of Load applications where high efficiency, high reliability and good thermal behavior are required. The device is perfectly suitable for NetCom, Telecom, Servers and Storage solutions.The voltage regulator employs an enhanced stability engine that makes it stable with ceramic capacitors without compensation for an easy design. Other solutions require extra components for stability and for ripple injection. Thus, the IR3883 can save up to five components and facilitates the layout for very small PCB size of less than 100 mm². The IR3883 provides up to 3 A continuous current from 4.5 V to 14 V in a small 3 mm x 3 mm PQFN package. It can enter diode emulation mode during light-loads to save power. Moreover, it can enter a low quiescent current mode making it ideal for standby power supplies to fulfill energy savings regulations. DCM can be disabled for applications requiring very low ripple or to avoid interference/beat frequency. The precise output voltage allows accurate output voltage from 0.5 V to 5 V. A thermally compensated internal current limit with three selectable levels overcomes the need to oversize the inductor and saves a resistor. This gives a more overall robustness because digital OCSET eliminates false trips from external noise and simplifies layout. The footprint is optimized for easy layout as well. For example, PVIN/PGND and SW/BOOT are adjacent for perfect bypass capacitors placement and less noise and easier design. The IR3883 also features all protection functions required for enterprise: pre-bias

Rail-to-Rail Op Amps Feature Precision & Power Efficiency Linear Technology introduces the LTC6258/59/60 and LTC6261/62/63, single/dual/quad op amps, extending its line of power efficient, low noise, precision operational amplifiers. These devices are part of a family of power efficient op amps ranging from 1.3MHz GBW product at 20µA supply current to 720MHz GBW product at 3.3mA supply current. The latest family members operate on 1.8V to 5.25V supply, feature rail-to-rail inputs and outputs, and include versions with shutdown mode, further reducing power consumption during periods of inactivity. Input offset voltage is just 400μV max. The devices are fully specified over the industrial (I) (–40°C to 85°C) and extended (H) (–40°C to 125°C) temperature ranges. With supply current of only 20μA per amplifier, the LTC6258/59/60 achieve 1.3MHz gain bandwidth product and 240V/ms slew rate. They include input EMI filters which provide 45dB rejection at 1GHz. They are stable for any gain and with any capacitive load. The LTC6261/62/63 achieve 30MHz GBW product and 7V/ μs slew rate, drawing just 240μA per amplifier. Wideband voltage noise is just 13nV/√Hz. They are stable for any gain and for capacitive loads up to 1nF. Power Efficient Precision Op Amp Family Extends from 20µA, 1.3MHz to 3.3mA, 720MHz The single LTC6258 and LTC6261 are available in a space

72 l New-Tech Magazine Europe