Power
Regulator provides a power noise resilience better than 6dB
Designed to help SoC integrators secure the operations of RF blocks, the nLR-Charny low-noise linear regulator has been released by Dolphin Integration. The device, which meets stringent low noise requirements, is suitable for use with a wide range of standard cells, memories and power regulators to meet the challenges of embedded low power voltage domains.
Tiny 20A power module reaches 93% peak efficiency
Exar has introduced the XR79120, a 20A single output, synchronous step-down power module with a 12x14x4mm footprint. The XR79120 offers greater than 93% peak efficiency and leverages Exar’s Constant On-Time (COT) control architecture across a 4.5 to 22V VIN range. The XR79120 provides an easy to use, integrated power converter integrating MOSFETs, inductors, and internal input and output capacitors.
PoE PSE inclusion expedites turnkey IoT portfolio
Marvell has announced that it will incorporate Microsemi's PoE Power Sourcing Equipment (PSE) offering into its turnkey manufacture-ready reference designs, bundled with software solutions. The combined technologies from Marvell and Microsemi will enable a large range of IoT and other connected network applications including wireless access points, 4G/LTE small cells, sensors, IP cameras and lighting.
Rugged linear regulator features increased SOA
Linear has announced the LT3088, a rugged 800mA wide VIN-range linear regulator. The device has an extended Safe Operating Area (SOA) compared to existing regulators, making it suitable for high input-to-output voltage and high output current applications where older regulators limit the output. The LT3088 uses a current source reference for single resistor output voltage settings and output adjustability down to 0.
Simplify Li-Ion battery backup systems
A lithium battery backup power management system for 3.5-5V supply rails that must be kept active during a main power failure has been introduced by Linear Technology. Batteries provide considerably more energy than supercapacitors, making them superior for applications which require backup for extended periods of time.
185mm busbar system withstands 50kA for a second
Rittal has launched the Ri4Power modular busbar system with a 185mm busbar centre distance. Ri4Power is suitable for configuring compact, secure power distribution within Ri4Power switchgear systems or Rittal’s renowned TS 8 enclosure range. Offering current ratings of up to 1600A and a short time withstand rating of 50kA for one second, the Ri4Power system meets the current switchgear standard IEC 61439-1.
Complementary MOSFET pair enhance buck converter power density
Integrating an N-channel and a P-channel MOSFET, the DMC1028UFDB complementary MOSFET pair has been introduced by Diodes Incorporated. Aimed at increasing the power density of DC/DC converters, the DMC1028UFDB is customised for PoL converters that step down from 3.3 to 1V for core voltage supply to ASICs.
Trench SiC MOSFET cuts on-state resistance in half
ROHM has announced the development and mass production of a SiC MOSFET that adopts the world's first trench structure. Compared to existing planar-type SiC MOSFETs, RDS(ON) is reduced by 50% in the same chip size, making it possible to significantly decrease power loss in a variety of equipment, from industrial inverters and power supplies to power conditioners for solar power systems.
6W DC/DC converters offer 4:1 input range in SIP package
Delivering a power density of up to 2.69W/m3 (44W/in3), the ITQ series of DC/DC converters have been introduced by XP Power. Packaged in a compact SIP 8-pin format, with a footprint measuring just 21.9x11.1x9.2mm, the 6W converters take up less board space, giving designers more room to add features or the ability to reduce end product size.
SiC MOSFET module offers low switching losses
CISSOID has released CHT-PLUTO, a dual Silicon Carbide MOSFET module primarily meant for half-bridges with 30A continuous capability for both low-side and high-side, delivering up to 60A. The two independent switches can be used in parallel to deliver a total of 60A with a breakdown voltage in excess of 1200V and a low on-resistance of 23mΩ at 25°C and 50mΩ at 225°C at VGS=20V.