Power
Coverters increase efficiency across entire load curve
Two isolated DC/DC converter familes, designated the PQMC3-S and PQM3-M Series, have been announced by CUI. The converters increase total efficiency across the entire load curve and deliver improved performance at light and no loads. The coverters have been designed for battery-powered applications where power draw under these conditions are a concern.
Controller delivers 1% output accuracy & simplifies designs
Supporting POL supplies up to 35A, the XRP6141 Synchronous Step Down Controller signals an expansion of Exar's line of DC-DC power conversion products. The controller is designed to achieve excellent transient response and output accuracy using the company's proprietary emulated current mode COT control loop.
Transformers target smart metering & reduce footprint by 30%
Targeting smart metering applications, the MID-MHC series of flyback transformers has been announced by Wurth Electronics. The transformer series supports creepage and clearance distances up to 14mm, as well as multiple isolated outputs.
AC/DC adapter interface IC can reach efficiency up to 88%
Designed for Qualcomm Quick Charge 2.0 power supplies, DIalog Semiconductor announces the iW620 AC/DC adapter interface IC. The IC resides on the secondary side of the AC/DC charger power supply and works with Dialog’s iW1760 PrimAccurate primary-side digital PWM controller.
Yuasa demo front terminal battery at Data Centre World 2014
Exhibiting at the forthcoming Data Centre World 2014, ExCeL, London, 26-27 February 2014, Yuasa Battery Sales will demonstrate the SWL4250 high capacity 12V industrial valve regulated lead-acid (VRLA) battery from stand J60. Suitable for use in UPS and similar high discharge rate applications, the SWL4250 delivers up to 40% extra high-rate discharge capacity compared to standard NPL series batteries.
DC/DC converters withstand high temperatures and shock
Particularly suitable for the high temperature and high shock environments found in applications such as oil drilling and mud turbine generators, the HTH27022S and HTM27092S are isolated hybrid hermetic DC/DC converters. International Rectifier's latest power offerings operate over a temperature range from -20 to +165°C and over an input voltage range of 190-400V.
30V power MOSFET supplied in 3x3mm PowerPAIR package
Saving space and simplifying the design of highly efficient synchronous buck converters, the Vishay SiZ340DT combines a high-side and low-side MOSFET in a compact 3x3mm PowerPAIR package. Compared to previous generation devices in this package size, the 30V asymmetric dual TrenchFET power MOSFET offers 57% lower on-resistance, 5% higher efficiency, and up to 25% higher power density.
Step-down slave controller generates up to 300A
Designed for applications including power distribution, redundant (n+1) supplies, industrial systems, DSP and ASIC power, the LTC3874 is a dual phase synchronous step-down slave controller from Linear Technology. When paired with a companion master controller, it is capable of generating currents up to 300A by extending the phase count in multiphase applications.
Bus converter modules first to utilise ChiP platform
The first module in the BCM series of ChiP bus converter modules has been released by Vicor. Utilizing Vicor's exisiting Converter housed in Package (ChiP) power component platform, the device supplies 1.2kW at 48V, with 98% peak efficiency and 115W/cm3 power density. Claiming 4x the density of competing solutions, the device is designed to provide efficient, high voltage DC distribution infrastructure in datacenter, telecom, and industrial appli...
LDOs operate down to 1.045V VIN with no external bias
Claiming to be the world's lowest voltage single supply LDOs, Exar's XRP6274 and XRP6275 regulators support 2A and 3A loads from a single low voltage supply with a maximum dropout voltage of 140mV. The regulators operate voltage rails of 1.1V to 2.5V, providing a single supply solution for convenient point-of-load voltage regulation.