Product category: Power Supply ICs and Controllers
News Release from: Maxim Integrated Products | Subject: MAX1937 and MAX1939
Edited by the Electronicstalk Editorial Team on 09 December 2002
Convertors take power to AMD processors
The MAX1937 and MAX1939 are dual-phase PWM step-down DC/DC controllers optimised for multiple generations of AMD's Athlon and Hammer processors, respectively.
The MAX1937 and MAX1939 are dual-phase PWM step-down DC/DC controllers optimised for multiple generations of AMD's Athlon and Hammer processors, respectively These high-performance controllers use Maxim's proprietary Quick-PWM architecture, providing excellent transient response (within 300ns) and significantly reducing the number and cost of output capacitors
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
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Additionally, their 0.75% output accuracy and fast active-voltage positioning reduce output capacitor size and cost.
The MAX1937/MAX1939 offer up to 30A output-per-phase (60A total) and feature on-the-fly VID change and wide input operating voltage.
These features enable the lowest cost design of CPU core supplies in desktop, mini-desktop, notebook and server computers.
The MAX1937 and MAX1939 use 6.5V gate drivers, permitting fewer and less-expensive mosfets compared to 5V gate drivers in competing integrated-driver multiphase solutions.
The Maxim controllers also provide remote output voltage sensing and allow for lossless current sensing, short-circuit shutdown and overvoltage protection.
The MAX1937EEI and MAX1939EEI come in a space-saving 28-pin QSOP package.
Both controllers are specified for the extended industrial temperature range (-40 to +85C).
Evaluation boards are available in VRM and VRD form factors to speed designs.
Prices start at $2.25 (1000-up, FOB USA).
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