66 leek crescent, 4607 s.e. international way richmond hill, ontario l4b 1h1 www.celestica.com/power milwaukie, or 97222 1-866-740-1232 1-971-206-2800 vrm 8.5_073-20813-50_rev3.doc release date: 2-4-02 page 1 of 2
programmable, single output, 1.05v ? 1.825v@28a voltage regulator module 5 or 12 volt input * vrm 8.5 compliant 1.05v ? 1.825v output @ 28 amps multi-phase buck topology specifications conditions min. typ. max. units input power input voltage io=0 to 28 amps 4.75 5.0 5.25 v 11.4 12.0 12.6 v input v cc 11.4 12 12.6 v output output voltage (vo) 5-bit dac controlled 1.05 -- 1.825 v output current (io) 0 -- 28 a efficiency io=28 amps 80 -- -- % protection over-current limit io=28 amps -- -- 150 % temperature operating io=28 amps 0 -- 50 c storage -40 -- 70 c physical information dimensions: 2.4?l x 1.25?h x 0.60?w reliability mtbf prediction per ?rac prism? at 55c 3,454,947 hours features: dac programmable output voltage adaptive positioning power good output differential remote sense output enable supervisory functions output over-current 5v or 12v power input vertical mount soldered pins p/n: 073-20813-50
66 leek crescent, 4607 s.e. international way richmond hill, ontario l4b 1h1 www.celestica.com/power milwaukie, or 97222 1-866-740-1232 1-971-206-2800 vrm 8.5_073-20813-50_rev3.doc release date: 2-4-02 page 2 of 2 programmable, single output, 1.05v ? 1.825v@28a pin function pin function pin function pin function 1 v tt 7 vid0 13 5v or 12v power input 19 v ss 2 v tt_pwrgd 8 vid 25mv 14 5v or 12v power input 20 vcc core 5 pwrgd 9 outen 15 key (no pin) 21 v ss 4 vid3 10 -sense 16 vcc core 22 vcc core 5 vid2 11 +sense 17 v ss 23 v ss 6 vid1 12 +12v cc 18 vcc core 24 vcc core pinout information mechanical information
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