ZSPM4023 product family ICs are constant-frequency, synchronous DC/DC buck regulators featuring an adaptive on-time control architecture. The ZSPM4023 operates over a supply range of 4.5V to 28V at a constant 600kHz switching frequency in continuous-conduction mode. The ZSPM4023 internal linear regulator provides a regulated 5V for the internal control circuitry that regulates the input signal […]
Power Management
Battery pack monitor extends operating life of Li-ion batteries
OEMs are moving away from NiCd and lead-acid batteries to embrace the more environmentally friendly Li-ion battery chemistries. Li-ion batteries are smaller, weigh less, and deliver longer battery life, but require monitoring and protection for safe use. Intersil’s ISL94203 3-to-8 cell battery pack monitor functions as a stand-alone battery management system for rechargeable Li-ion battery packs. […]
Power MOSFETs for light and compact switching power conversion devices
STMicroelectronics has extended its MDmesh™ M2 series of N-channel power MOSFETs with the introduction of a new family of devices that offer high power efficiencies in power supplies for servers, laptops, telecom, and consumer applications, especially under light-load conditions. With these new devices, designers can create switching power conversion devices that are lighter and more compact, while […]
Power supply noise rejection – Technical Brief
Many of the problems facing PCB designers today are related to power supply noise. There are guidelines that can be used to solve simple issues, but, for more complex issues it is essential to understand and consider all the parameters which will help in providing an optimal and clean solution. This technical brief describes the […]
Battery Types and Operation
I came across an interesting new product recently which made me realize that I take batteries for granted without actually thinking much about how they work. I know they work and the specifications enable me to select them and design them into a product but how do they work? The product that caused my intrigue […]
GlobTek’s level VI compliant medical and ITE power supply / charger
GT-43086-WWVV-X.X-Q Model is an addition to GlobTek’s Level VI compliant GT-43086 family and represents GlobTek’s 6 Watt wall plug-in series of AC/DC adapters (power supplies & chargers) with International Interchangeable blades. GlobTek’s changeable input blade system with individual field replaceable input plugs, including: North America / Japan NEMA 1-15P, Australian, UK BS 1363, European CEE […]
Double Data Rate (DDR) termination regulators with built-in power MOSFETs
ON Semiconductor has introduced a series of new high performance devices to support double data rate (DDR) memory, the NCP51200, NCP51400, NCP51510, and NCP51199 feature. All the regulators feature a built in Power MOSFETS and are targeted at a wide variety of applications in the computing, data networking, industrial and handheld consumer markets for specific applications […]
Dialog Semiconductor extends power management leadership in China
DA9210 sub-PMIC powers MediaTek MT6795 processor in HTC One M9+ and E9+ Android based smartphones Dialog Semiconductor plc (FWB:DLG), a provider of highly integrated power management, AC/DC power conversion, solid state lighting (SSL) and Bluetooth® Smart wireless technology, announced that its DA9210 IC (sub-PMIC) will deliver precision power management to the MediaTek processor in HTC’s […]
Coin Cell dimensional tolerance and battery holders
Competing brands of batteries can have substantially different dimensional specs. Where this dimensional tolerance has an impact is in the battery holder. A coin cell holder must be designed so it can handle normal height variances while at the same time, not accept batteries of a different type. Obviously, the battery holder can’t have a […]
Better barriers make lithium batteries hard to beat
An advanced barrier between the electrodes in lithium-ion batteries could help head off fires and overheating that occasionally arises in laptops or industrial applications. The barrier uses nanofibers extracted from Kevlar. The barrier helps minimize the growth of metal tendrils on battery electrodes that can otherwise lead to electrical shorts. In normal battery operation, there […]
