Power

Power electronics is a key element in the world of electronic design and engineering and electronic engineers need to have a thorough understanding of this area if they’re going to create successful products.

In this section, New Electronics keeps designers up to date with the latest developments in the power electronics market – everything from DC/DC converters to IGBTs to battery technology. In fact, New Electronics covers any power product that can go on a PCB.

Converter offers 93% efficiency

Linear Technology has released the LT8602, a 42V quad channel, current mode, monolithic buck switching regulator with a programmable power-on reset. The LT8602's synchronous rectification topology is said to deliver up to 93% efficiency and can be configured for micropower Burst Mode operation or pulse-skipping operation at light load.

Automotive qualified single output LDO

Micrel has released a high-performance low-dropout CMOS regulator (LDO) featuring a dropout of 100mV at 300mA. The MAQ5300 comes in a 6-pin, 2 x 2mm DFN package and is suited for space-constrained and high-reliability functions in automotive and industrial applications.

Ineltek UK announces first Super Junction MOSFETs from Magnachip

Ineltek UK has launched the first in a range of 650V Super Junction (SJ) MOSFETs from Magnachip. MMUB60R199PC is suited to high efficiency power switching requirements due to the intrinsically low RDS(ON) characteristics of the SJ technology and the switching frequencies enabled by its gate charge.

MOSFETs deliver highest energy efficiency in space constrained applications

Infineon has launched a family of StrongIRFET MOSFETs for DC powered circuits including battery powered circuits, brushed and brushless DC (BDLC) motor drives. The MOSFETs are said to bring the industry's highest energy efficiency to end-applications such as power and gardening tools, light electric vehicles, drones and e-bikes that demand a high level of energy efficiency but are restricted in available space.

T591 Series feature 50V offerings

KEMET has announced extensions to its automotive grade polymer electrolytic capacitors. The T591 High Performance Automotive Grade Polymer Electrolytic Series is said to deliver stability and endurance under harsh humidity and temperature conditions. The new extensions include options up to 50V for both 12 and 24V power rails.

Industry's lowest power 3.3V PCIe clock generators

Mouser has announced it is shipping IDT's 9FGL PCIe Clock Generators. The 9FGL range of clock generators are members of IDT's 3.3V low-power PCIe series and are said to support Common Clock with or without spread spectrum and Separate Reference no-Spread PCIe clocking architectures.

High efficiency DC/DC converter

Micrel has released the MIC24046-H, a high efficiency, pin-configurable 5A synchronous buck converter that targets end equipment such as network switches/routers, servers, storage, base stations, FPGA and DSP power as well as factory automation and security cameras.

1W DC/DC converter is 34% smaller

Murata has announced the MTC1 series of 1W regulated single output DC/DC converters. Murata claims the MTC1 Series occupies 34% less PCB area that competing parts and can operate up to 105°C.

DC gate driver reduces board space by 40%

Texas Instruments has introduced an integrated gate driver that offers adjustable gate drive settings with the flexibility to drive a range of external FETs, supporting multiple motors, speeds or varying loads. The DRV8701 enables designers to scale their platforms using a single gate driver across various brushed DC motor models in equipment such as white goods, household appliances, robotics, home automation, power tools, and industrial pumps and valves.

Quick charge and discharge supercapacitors

Jamicon has introduced the DA series of supercapacitors, available in the UK from specialist components distributor Components Bureau. Bridging the gap between capacitors and batteries, these electric double layer capacitors (EDLCs) are suitable for quick charge and discharge applications.

AC/DC supply provides 95% efficiency

XP Power has announced the EPL225 series of efficient, open frame AC/DC power supplies suited for industrial, IT and medical applications. The series comprises seven single-output models that offer a range of standard output voltages from 12 to 48V DC with an output power of 225W.

IC for electronic throttle control

Toshiba has launched the TB9051FTG; a motor driver IC for DC brushed motors. While primarily targeted at vehicle engine applications, such as electronic throttle and valve control, it is also suitable for control of on-board systems operating at up to 5A, such as control of wing mirrors and locks for car boots.

Low power, high-speed IC-photocoupler

Toshiba has launched a photocoupler that is claimed to combine communication at 15Mbit/s with low power consumption. The TLP2761 has been designed for use in applications such as inverters, servo amplifiers, photovoltaic inverters, FA networks and I/O interfaces.

Fast charging and system back up

Linear's LTC3110 is a 2A bidirectional buck-boost DC/DC regulator with capacitor charger and balancer. Its 0.1V to 5.5V capacitor/battery voltage and 1.8 to 5.25V system backup voltage ranges suit it to a variety of backup applications using supercapacitors or batteries, including servers, RAID systems and RF systems.

Resettable e-fuse for consumer applications

Diodes Inc has introduced the NIS5135, a self-protected resettable electronic fuse designed to enhance system reliability against shutdown and catastrophic failures. The fuse is suited to plug and play consumer applications, such as hard disk and solid state drives, printers, and set-top boxes.

MOSFETs enhance buck converter power density

Diodes has introduced the DMC1028UFDB complementary MOSFET pair. Aimed at increasing the power density of DC/DC converters, the MOSFET pair integrates an N-channel and a P-channel MOSFET in a DFN2020 package. The design is customised for point-of-load converters that step down from 3.3V to 1V for core voltage supply to ASICs.

Industry's smallest 20A power module

Exar has introduced the XR79120, a 20A single output, synchronous step-down power module in a 12 x 14 x 4mm package. The XR79120 is claimed to offer greater than 93% peak efficiency and leverages constant on-time (COT) control architecture across a 4.5 to 22 VIN range. This allows single supply operation from industry standard 5, 12 and 19.6V rails.

Converters offer wide input range in a compact package

XP Power has launched the ITQ series of 6W DC/DC converters. Packaged in a compact SIP 8-pin format, with a footprint of 21.9 x 11.1 x 9.2mm, the ITQ series takes up less board space giving designers more room to add features or the ability to reduce end product size.

High efficiency in hard switching applications

Infineon has extended its medium voltage MOSFET portfolio with Optimise 300 V, which is said to enable energy efficient solutions in applications such as telecom systems, uninterruptible power supplies (UPS), motor control, industrial power supplies and DC/AC inverters.

Buck converter raises portable efficiency

Diodes claims that its AP3403 step-down DC/DC converter achieves typical efficiencies greater than 95%, helping to extend the battery life of low voltage portable products. The synchronous PWM device drives a load of up to 600mA, with efficiency maintained through a configuration of external resistor, capacitor and inductor components.

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