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POL modules suit next-gen DSP, microprocessors

Posted: 15 Aug 2007 ?? ?Print Version ?Bookmark and Share

Keywords:POL power modules? DSP? microprocessors?

PMN 5118U

Ericsson Power Modules has released its third-generation POLA products, the PMN and PMP series point-of-load (POL) modules, based on the latest generation of high dynamic-response control IC with embedded TurboTrans functionalities. The POL power modules address a wide range of applications including industry, avionics and ICT systems.

The modules are the PMN 5118U, rated at 4.5-5.5Vin, 0.7-3.6V at 30A, the PMN 8118UW, rated at 5.5-14Vin, 0.7-3.6V at 30A and the PMP 5818UW featuring a rating of 4.5-14Vin, 0.7-5.5V at 16A. The wide input range and fast transient response of these modules make them particularly suitable for the new generation of DSP and microprocessors that demand such performance levels.

Powerful devices
Owing to their TurboTrans features, the modules can also be operated with fewer output capacitors than traditional POL devices, reducing the amount of board space required by voltage regulators and resulting in a much higher power density than conventional units.

Telecom and datacom (router, servers and interfaces) are the prime areas of deployment for the PMN and PMP, but the performance of these products makes them well suited for powering FPGA, DSP and other ASICs requiring a fast transient response and high efficiency at a competitive price.

The increase in processors' switching frequencies to new levels, associated with the development of multi-core technology that brings higher board functionalities have been significant factors in creating and driving the demand for these latest POL products that combine ultra fast response time and high power density.

Moreover, the introduction of modulated dynamic bus voltage (M-DBV) adjusted in real time to optimize global efficiency requires the use of wide input-range modules that are not compromised in other areas of their performance.

Enhanced features
As third-generation POLA products, the modules are said to offer a fully interoperable second source in accordance with POLA specifications.

With higher power and current density than previous generations of POL devices, the modules reduce the need for board space and with its highly efficient topology, PMN and PMP modules also help reduce energy consumption.

With their wide input-voltage range, PMN and PMP offer a high degree of flexibility to designers when choosing voltage regulators, especially when applications are migrating to modulated dynamic bus voltage (M-DBV), where the input voltage varies widely from 6V to 12V.

The wide input range also offers simplicity to designers, meaning only one code needs to be approved, regardless of the on-board bus voltage required, simultaneously simplifying inventory management, reducing indirect costs and reducing total cost of ownership.

The modules' use of TurboTrans technology to achieve a faster response to transient load means they require fewer output capacitors than traditional products for better performance. With Ericsson Power Modules' PMN and PMP, designers will save cost and board space while gaining a reduction of up to 50 percent lower peak deviation when compared with conventional voltage regulators.

With 1.5 percent output voltage regulation, PMM and PMP offer the best option for current and future generations of ASIC, FPGA, DSP and other processors, said Ericsson.

The PMN and PMP devices offer ultrafast transient response while delivering up to 30A in a product footprint size of less than 5cm?.

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