Power Supplies

Programmable power chip can be factory-set for volume

Exar has introduced quad-output step-down power management IC (PMIC) that comes in a programmable flash version for development and a factory-programmed version for production.

Called XRP7720, is has synchronous rectification for efficient 0.6-5.5V outputs, and has two input voltage modes: 4.75-5.5V…

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Altera offers 40A FPGA power device

Altera has announced the availability of a 40A driver chip for point-of-load power converter designs for powering FPGAs.

The monolithic device integrates a 40A driver with synchronous mosfet and is designed specifically for powering Altera’s Stratix V, Arria 10, and Stratix 10 FPGAs and SoCs.

It is…

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Programmable PMIC is factory-set for production

Exar has introduced quad-output step-down power management IC (PMIC) that comes in a programmable flash version for development and a factory-programmed version for production.

Called XRP7720, is has synchronous rectification for efficient 0.6-5.5V outputs, and has two input voltage modes: 4.75-5.5V…

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Electric bike power pack design has MCU-less cell monitor

A lithium pedal electric cycle battery power pack design from mixed-signal chip firm ams is notable because it incorporates cell monitoring and balancing without the need for a microcontroller.

The 48V battery pack design consists of up to 14 lithium-ion cells monitored by two AS8506 cell-monitoring ICs…

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CamSemi targets USB smartphone chargers with PSS controllers

CamSemi has added two new ‘fast start’ Primary Side Sensing (PSS) controllers which moves it into higher power systems.

The C2173 and C2174 controllers can be used in MoU-compliant, USB smartphone chargers, recently endorsed by the European Union, and other universal input applications typically rated at 8W and 10W…

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Keithley returns to good old GPIB

Keithley Instruments has given its latest programmable DC power supplies GPIB interfaces.

The Model 2230G-30-1 power supply provides two output channels, typically used for powering analog circuits, with each channel capable of outputting up to 30V/1.5A/45W, plus a 6V/5A/30W output channel, typically used…

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Ericsson power converter needs fewer capacitors

Ericsson’s latest addition to its BMR461 range of digital point-of-load (POL) DC-DC power modules add lower (6A) and higher (18A) output current ratings to the range. The new modules are footprint compatible with the existing 12A BMR4613001 product.

The modules have a 12 x12mm footprint and…

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Power converter has SEPIC-fed buck design for lower loss

CUI has introduced an isolated intermediate bus power converter in a quarter brick package and deliver a power density of 27.2 W/cm3 (445 W/in3) as well as efficiencies in excess of 96%.

The module’s design integrates a buck converter into a SEPIC converter to form a…

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