Product category:
DC/DC Convertors
News Release from: Emerson Network Power - Embedded Power | Subject: NXI100 and NXI150
Edited by the Electronicstalk Editorial
Team on 28 April 2003
POL convertors are dedicated to Intel
processors
Artesyn Technologies has two new high-current point-of-load DC/DC convertors for powering Intel's Xeon and Pentium 4 processors.
Artesyn Technologies has two new high-current point-of-load DC/DC convertors for powering Intel's Xeon and Pentium 4 processors Delivering up to 75A, and compliant with the latest VRM9.1 specifications, the converters employ multiphase techniques for advanced performance, and come in PCB-pluggable forms to assist computer OEMs in creating flexible products that may be upgraded in the field
This article was originally published on Electronicstalk on 4 Feb 2000 at 8.00am (UK)
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The NXI100 and NXI150 nonisolated, point-of-load (POL) DC/DC convertors, are capable of delivering up to 75A continuous, 81A peak at a user-programmable voltage from 1.10 to 1.85V using standard 5bit VID (voltage identification) codes.
Both operate from a nominal 12V input.
Multiphase synchronous rectification techniques, with interleaving to achieve a high effective switching frequency of 1MHz, maximises power conversion performance and ensures a fast transient response.
Further reading
Artesyn extands 24V DC/DC range to 30A
Artesyn Technologies has added a new member to its BXB family of industry standard, half-brick DC/DC converters.
New standard in efficiency from DC/DC Converters
Artesyn Technologies has introduced the EXB30 series of high-efficiency, single-output, open-frame, isolated DC/DC converters.
The converters have typical efficiencies of 85 to 87%, and accommodate load transients of up to 50A/us with full recovery in less than 50us, for example.
Multiple convertors can be paralleled for very high current applications, using an active current sharing circuit to maintain current balance under both static and dynamic load conditions.
This 'democratic' approach to current sharing obviates the need for expensive master/slave configurations.
NXI150 and NXI100 convertors have no minimum load requirement, are comprehensively protected against undervoltage and short-circuit conditions, and have an operational temperature range of 0 to +60C ambient.
An enhanced 'power good' feature improves system reliability by monitoring the output voltage and each phase of the convertor for correct operation, and differential remote sense facilities are provided for improved load regulation.
The converters additionally offer a remote on/off facility.
An open-frame, single-board construction is used to minimise cost and weight, and to simplify thermal management.
The convertors make extensive use of surface-mount components and the latest thermal packaging techniques to help maximise power density and reliability, and are designed for vertical plug-in to a standard motherboard connector - with or without a retention latch.
When mounted on a motherboard, the NXI150 occupies an area of less than 2.2in2 and extends vertically by 2.6in, the NXI100 occupies an area of less than 3.2in2 and has a height of just 1.15in.
Both convertors support the computer design trend away from 5 or 7U high computer enclosures, towards lower-profile, rackable systems with heights of 2 or 1U.
Moreover, they meet these profile targets despite offering the flexibility of a pluggable form factor.
The NXI convertors are available now, with a standard lead time of stock to 8 weeks.
In small quantities, the NXI150 is priced at US $45; the NXI100 is priced at US $49.
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