National Semiconductor has released a new synchronous voltage-mode buck controller that drives a variety of high-current point-of-load applications in printers, telecom, networking and embedded computing applications.
A wide input voltage range of 3 V to 20 V allows the LM27402 to interface with all intermediate bus voltages, including 3,3 V, 5,0 V and 12 V rails. Integrated inductor DC resistance current sense eliminates the need for resistive power train elements to detect output current. This increases overall power conversion efficiency and allows accurate continuous current limit sensing. The current sense threshold level is programmable to accommodate a wide range of load current levels using the smallest inductor possible.
Output voltage is adjustable down to 0,6 V with a 1% voltage reference providing output voltage set-point accuracy over the full -40°C to 125°C operating temperature range. An integrated bias supply sub-regulator eliminates the external bias voltage supply to simplify PC board layout. Integrated, high-current MOSFET gate drivers with adaptive dead-time control enable efficient power conversion with load currents as high as 30 A. It also supports programmable soft-start, tracking and pre-biased startup.
ABB’s Mission to Zero drives South Africa’s energy transition ABB Electrification Products
Power Electronics / Power Management
ABB Electrification is charting a bold path towards a net-zero future with its Mission to Zero programme, a blueprint that combines energy efficiency, electrification, and digital innovation to accelerate the transition to clean energy.
Read more...Energy harvesting using a battery-less IoT system NuVision Electronics
Editor's Choice Power Electronics / Power Management
Energy Harvesting plays an essential role in the foundation of ambient IoT, a new generation of ultra-low power connected devices that operate by drawing energy from their environment instead of relying on traditional batteries.
Read more...Driving power, defining performance Future Electronics
Power Electronics / Power Management
Vishay’s portfolio of inductors, current sense resistors, and MOSFETs provides a comprehensive solution for intelligent power management.
Read more...Battery simulator module simplifies BMS testing Test Dynamics
Power Electronics / Power Management
The PXI/PXIe solution from Pickering Interfaces offers a scalable, modular design for faster development cycles, lower total cost of ownership, and improved safety.
Read more...DC PSU: The cornerstone for efficient solar-storage systems Vepac Electronics
Power Electronics / Power Management
PV energy storage systems are evolving and DC power supplies, with their technical characteristics that are naturally compatible with new energy, have become a key carrier for improving system energy efficiency.
Read more...Converter power modules for 48 V networks Altron Arrow
Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.
Read more...Memory for asset tracking Altron Arrow
DSP, Micros & Memory
The Page EEPROM, ST’s latest memory, has been designed for efficient datalogging and fast firmware upload/download in battery-operated devices.
Read more...Microchip and AVIVA Links collaboration Altron Arrow
News
Microchip and AVIVA Links have achieved groundbreaking ASA-ML interoperability, accelerating the shift to open standards for automotive connectivity.
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