Product category:
DC/DC Convertors
News Release from: Ericsson Power Modules | Subject: PKJ4216N
Edited by the Electronicstalk Editorial
Team on 26 May 2005
Half-brick convertors aim for wireless
duties
A new DC/DC convertor offers high performance and reduced cost in RF power amplifier systems and other distributed power applications.
Designed to provide high quality onboard power solutions in RF power amplifier systems and other distributed power applications, Ericsson Power Modules' PKJ-N DC/DC convertor offers high performance and reduced cost The future proofed convertor is DfE and RoHS compliant and therefore avoids requalification costs when soon to be introduced legislation comes about
This article was originally published on Electronicstalk on 9 Dec 2002 at 8.00am (UK)
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The PMA family of surface mountable DC/DC regulators offers high-current outputs from 1.2 to 5V.
Upgrade for lead-free convertors
Ericsson Power Modules is upgrading its PKD series of lead-free DC/DC convertors to lead-free assembly processes.
The convertor's electrical design is specifically adapted to fulfil RF load requirements.
Driving the demand for this type of device is the high volume market need for RF power amplifiers for 2 and 3G radio basestations.
In these applications the PKJ4216N excels where efficiency, reliability, step response, environmental concerns and cost are of great concern.
Further reading
Quarter bricks have minimum environmental impact
Combining competitive pricing with excellent performance and reliability, Ericsson Power Modules' PKM-E quarter bricks are designed to offer minimum environmental impact to meet future legislation.
Point of load regulators lower headroom
As a point of load (POL) regulator in distributed power architectures, the PMC4000 regulator claims to offer designers clear advantages where both board space and component height are limited.
The family presently consists of two products: 30.2V/8.3A/250W and 28.2V/11A/310W.
At 91.5% at half load and 91% at full load, the convertors are highly efficient and thus offer a longer system lifetime and reduced cost of energy consumption, reducing the total cost of ownership.
Ericsson PM's metal-to-metal technology means significantly improved thermal management and performance at reduced cost.
The convertor uses an industry standard half-brick design with widely used pinout configuration for simple integration into existing amplifier designs, and to provide secure sourcing.
The fully featured convertors include output overvoltage, input undervoltage, overtemperature and output short circuit protection, together with soft-start, remote sense, remote control and output voltage adjust functions.
Keeping radiated EMI to a minimum, the PKJ4316N includes a ground plane in the PCB area under the DC/DC convertor.
This approach returns switching noise to ground as directly as possible, with improvements to both emissions and susceptibility.
With 1500V DC input to output isolation, the convertor meets isolation requirements equivalent to basic insulation according to IEC/EN/UL60950, and offering high reliability, the PKJ-N boasts a 3Mh predicted MTBF.
Offering excellent performance and quality at a competitive price, the convertors are designed according to mobile network RFPA requirements.
Ericsson PM's philosophy and manufacturing processes embrace conservative design rules, design reviews and product qualifications, plus the high competence of an engaged work force.
Infant mortality or early failures in the products are screened out and they are subjected to ATE-based final tests.
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