Product category: Power Supply ICs and Controllers
News Release from: NXP (formerly Philips Semiconductors) | Subject: NE57810 and the NE57811
Edited by the Electronicstalk Editorial Team on 25 September 2002
Termination regulator chips cut cost and space
Philips has developed an advanced double-datarate termination regulator semiconductor family designed to reduce the overall cost of the DDR termination system by as much as 50%.
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Philips has developed a new advanced double-datarate (DDR) termination regulator semiconductor family designed to reduce the overall cost of the DDR termination system by as much as 50% and provide a savings in board space of as much as 60% over switch-mode designs. Philips' DDR termination regulators, the NE57810 and the NE57811, are critical in a number of widely used applications such as desktop PCs, servers and workstations, set-top boxes and digital video recorders (DVRs). The introduction of these analogue chips supports Philips' commitment to providing essential multimarket semiconductors.
By combining various functions that previously required multiple devices, Philips has been able to provide its customers with a 50% system cost reduction.
In turn, the reduction in parts count results in a 60% savings in board space.
The new analogue regulator family provides well-regulated power to the memory termination resistors at half the memory supply voltage with current up to 3.5A.
The devices are compatible with today's 2.5V memory systems and are designed to support next generation 1.8V systems when they become available.
"Micron has worked closely with Philips in defining the features, functions and performance criteria of the new DDR termination regulators", said Brett Williams, Strategic Marketing Manager for Dram Products, Micron.
"We have put these devices through extensive tests with our library of test programs and they have performed flawlessly".
"Philips' established track record in standard analogue products has resulted in our ability to set a new benchmark on miniaturization and Micron's leadership in memory definition has enabled them to validate our parts", said Warren Severin, Strategic Marketing Manager of the semiconductor division of Philips.
"These DDR termination regulators will provide our customers with real benefits such as improved system cost, reduced parts count, reduced board real estate, and simplicity in board layout".
The NE57810 and NE57811 will provide the peak 3.5A current load (at 1.25V) as specified in the JEDEC DDR specifications, while overcurrent and overtemperature circuits protect the devices in the event of any system failures.
Philips' DDR termination regulators are thermally robust, using packages with very low junction-to-ambient temperature coefficients.
This means that these devices can be used in most applications with minimal attention to cooling, freeing designers from thermal design headaches.
Due to their fast response to load changes, these semiconductor devices require significantly less output capacitance than competing linear or discrete system designs and are stable with as little as 100uF load capacitance.
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