94% Efficient Power Block Targets FPGAs And Processors

May 8, 2009
Designed to meet the demanding requirements of applications with multiple power rails where cost, efficiency, and flexibility are mandatory, the ROA1283003 30-A power block from Ericsson targets FPGAs and other processors. Its Centralized Control Archite

Designed to meet the demanding requirements of applications with multiple power rails where cost, efficiency, and flexibility are mandatory, the ROA1283003 30-A power block from Ericsson targets FPGAs and other processors. Its Centralized Control Architecture (CCA) is based on a centralized power-management controller that can drive single or multiple power-block switching modules.

The ROA1283003 can be inserted into applications as a power stage controlled by a single-phase or multiple-phase pulse-width modulator (PWM). It complements the company’s range of isolated and non-isolated products that address distributed power architectures. It also simplifies power management in modern information and communication technology (ICT) applications.

The block accepts input voltages of 7 to 13.2 V and provides an output of 0.8 to 3.3 V. With a typical efficiency of 94% at full load and 3.3 VOUT, it’s designed to optimize layout and minimize power losses. In high-efficiency power switching topologies, it helps reduce overall power consumption and lowers the heat generated by power terminations. Its 4.89-hour mean-time before failure (MTBF) will ensure system reliability as well.

Combined with an external controller, the ROA1283003 provides downstream protection of critical and expensive components in high-current applications, delivering the required current under any load conditions. It’s designed for paralleling operation, allowing scalability, to deliver higher currents on demand. It features a built-in temperature sensor device and a DCR sense pin as well.

The ROA1283003 matches its predecessors’ footprint and lead-free surface-mount assembling requirements, so it can easily upgrade existing boards. Offering a 11.4-mm max profile, it comes in an antistatic tape that complies with the EIA 481 standard and in dry-pack that complies with the IPC/JEDEC standard J-STD-033. It costs $10.05 in OEM quantities.

Ericsson Power Modules

www.ericsson.com/powermodules

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