Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LT8711, a multitopology current mode PWM controller that can easily be configured as a synchronous buck, boost, SEPIC and ZETA DC/DC converter, or as a nonsynchronous buck-boost converter. This device replaces the output diode with a high-efficiency P-channel MOSFET, thereby increasing efficiency and maximum […]
Converters
Offline flyback switcher IC family carries 94% efficiency ratings
Pairing the latest sleek, sexy phone with a power adapter that screams “brick” simply doesn’t fly anymore for the consumer, nor does settling for anything but substantially noticeable charging times. But it’s one of the apparent sweet spots for Power Integrations’ latest offline CV/CC flyback switcher ICs in the InnoSwitch line. After all, what manufacturer or consumer […]
120W quarter brick DC-DC converters have four package styles for industrial applications
TDK Corporation announces the introduction of the GQA120 series of 120W industrial grade DC-DC converters. Four package types allow product performance to be optimized for the application. The series can accept a 12Vdc or 24Vdc nominal input, making it suitable for ruggedized communication equipment, automated vehicle mounted electronics, trackside rail and marine radar and navigation […]
Converters sport super-high Step-Down Ratio: 60-V-to-2.5-V at 2MHz
ROHM has recently announced the availability of a DC/DC converter with built-in MOSFET that achieves the highest step-down ratio in the industry (at 2MHz) required for 48V automotive systems such as mild hybrid vehicles. The BD9V100MUF-C integrates ultra-high-speed pulse control technology (Nano Pulse Control) created by combining proprietary circuit design and layout with original processes, enabling low voltage […]
42-V single-channel DC/DC step-down power module delivers up to 15 A continuously
Intersil, a subsidiary of Renesas Electronics Corporation, announced the first 42V single-channel DC/DC step-down power module that delivers up to 15A of continuous current. The ISL8215M operates from a single wide input voltage range that includes industry standard 12V, 18V, and 24V intermediate bus power rails. The module offers adjustable output voltages from 0.6V to […]
Researchers say sliding-mode algorithm cleans up ripple in buck converter output
A special kind of control technique is said to be effective at eliminating voltage ripple in the output of buck converters that see a wide range of inputs. The design comes from scientists at Golestan University in Iran, Concordia University in Canada, and Delft University of Technology in the Netherlands. The researchers published their study […]
DOE awards $30 million to advance new class of high-performance power converters
The U.S. Department of Energy’s (DOE) Advanced Research Projects Agency-Energy (ARPA-E) today announced $30 million in funding for 21 innovative projects as part of the Creating Innovative and Reliable Circuits Using Inventive Topologies and Semiconductors (CIRCUITS) program. CIRCUITS project teams will accelerate the development and deployment of innovative electric power converters that save energy and give the United States a critical […]
Low-quiescent-current buck converter for USB Type-C apps
Developers of multi-cell, USB Type-C products that need higher current, dual input, and I2C support now have a flexible option with the MAX77756 24V, 500mA, low quiescent current (Iq) buck converter from Maxim Integrated Products, Inc. USB Type-C products must generate an always-on 3.3V rail to detect USB insertions. Products utilizing the Power Delivery (PD) voltage range […]
Reference design covers 12-W dimmable LED downlight with color management over Bluetooth
A new reference design, DER-612, describes a constant-voltage (CV), constant-current (CC) 12-W isolated flyback power supply with power factor correction for smart lighting applications. The design includes a 3.3-V power supply to drive a Casambi CBM-001 Bluetooth wireless module, which provides dimming and color management control of the four-string LED load from 0 to 400 […]
High-power-density synchronous buck converter sports 25-nsec minimum on time
Analog Devices, Inc., which recently acquired Linear Technology Corporation, announces the LTC7150S, a 20V, 20A monolithic synchronous buck converter with differential VOUT remote sensing. The device’s unique phase lockable controlled on-time constant frequency current mode architecture eases compensation and is ideal for high step-down ratio applications that operate at high frequencies while demanding fast transient […]
