VRK81B080CU Replaced by VRK81B100CS Programmable, 80A Single Output DC/DC Converter SELECTION SELEC CTION GUIDEE OBSOLETE PRODUCT Input Voltage Order Code Code ge Output Voltag Voltage (NOM M.) V (NOM.) V Contact Factory for Replacement Model VRK81B080CU VRK81B B080CU 12 0.800-1.55 Output Current A Efficiency % (TYP.) 80 85 INPUT CHARACTE CHARACTERISTICS ERISTICS Parameter Conditions1 Input voltage operating range FEATURES Meets AMD K8 requirements DAC Programmable output voltage Power good output Differential remote sense Remote enable Supervisory functions Latch off overcurrent Short circuit protection Tri-state output when disabled Dynamic VID capability Under voltage lockout Maximum input current No-load input current Disabled input current Enable - positive logic MAX. Units 12.0 6.9 6.0 0.9 11 13.2 7.3 6.6 1.1 V 100 10 0.8 -0.3 200 20 TYP. Parameter Conditions1 MIN. Voltage set point Line regulation Load regulation Voltage total regulation DC 5-Bit DAC controlled 0.800 -5 Ripple & noise 2 SMBus temperature monitor Current operating range Efficiency Turn-on time VRK81B080CU is designed to meet the fast load transients required by AMD 64-bit processors and is fully compliant with the latest AMD64™ processor power specifications. Packaged in a compact design, VRK81B080CU has a height only 1.16” (1.2” total mating height), and is ideal for 1U server applications. High efficiency of 85% at full load for reduced power dissipation to simplify system thermal management. TYP. 10.2 6.5 5.4 0.7 13 400 50 5 0.4 A mA V OUTPUT CHARACTERISTICS 1U Form factor (1.200” total mating height) DESCRIPTION Turn-on threshold Turn-off threshold Hysteresis voltage Typical: 80A, 1.4VID, VIN = 12V Max: 80A, 1.55VID, VIN = 12V Enable state, no load Disabled state On state range Off state range MIN. Recommended bulk output capacitance 0 0.6 VID-50mV 20MHz bandwidth, using recommended output capacitors IO = 80A, VID = 1.4V VIN present: enable to 90% VOUT 560μF, 4V alum poly 10μF, 1206 X7R ceramic MAX. Units 1.55 5.0 V mV mΩ V VID+50mV 8.4 0 83 mVp-p 80 50 A % mS EA EA MAX. Units 115 ºC 85 8 25 GENERAL CHARACTERISTICS Parameter Conditions1 Semiconductor junction temperature Package rated to 150ºC Material flammability MTBF Switching frequency UL 94V-0 Calculated (RAC PRISM) Per phase MIN. TYP. x106 Hrs KHz 1.303 300 TEMPERATURE CHARACTERISTICS Parameter Conditions1 MIN. Storage temperature range Non-condensing -40 70 Operating temperature range See derating graph 0 60 TYP. MAX. Units ºC PROTECTION CHARACTERISTICS Parameter Conditions1 Output overcurrent shutdown Latching Overvoltage Indication, CBOUT VOUT MIN. TYP. 85 MAX. Units 120 A 2.1 V 1. VIN = 12VDC, TA = 25ºC, Airflow = 400LFM unless otherwise noted. 2. Output ripple voltage is specified when measured with recommended capacitance at the output of the converter. www.murata-ps.com Technical enquiries - email: [email protected], tel: +1 508 339 3000 ODC_VRK81B080CU.1 Page 1 of 4 VRK81B080CU Programmable, 80A Single Output DC/DC Converter THERMAL DERATING GRAPH .BY-PBE" -'. -'. "NCJFOU5FNQFSBUVSFEFHSFFT$FMTJVT VID CODES VID4 VID3 VID2 VID1 VID0 VOUT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1.550 1.525 1.500 1.475 1.450 1.425 1.400 1.375 1.350 1.325 1.300 1.275 1.250 1.225 1.200 1.175 1.150 1.125 1.100 1.075 1.050 1.025 1.000 0.975 0.950 0.925 0.900 0.875 0.850 0.825 0.800 Shutdown www.murata-ps.com Technical enquiries - email: [email protected], tel: +1 508 339 3000 ODC_VRK81B080CU.1 Page 2 of 4 VRK81B080CU Programmable, 80A Single Output DC/DC Converter PART NUMBER CODING 73,#$6$ 'BNJMZ 7373. 1CGSFF $3P)4 7FSTJPO 'PSNGBDUPS 66 .PVOUJOHUZQF $$BSEFEHF 1FBLPVUQVUDVSSFOU " ".%,TVQQPSU ,, *OQVUWPMUBHF #7*/ PACKAGE SPECIFICATIONS PIN ASSIGNMENT Pin Signal Pin Signal 1 2 3 4 5 6 7 8 9 101 111 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 GND GND GND VID4 VID2 VID0 COREFB_H PWRGD ENABLE SmDA SMCL SGND VDD VDD VDD GND GND GND VDD VDD VDD VDD VDD VDD GND GND GND 54 53 52 51 50 49 48 47 461 451 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 +12VIN +12VIN +12VIN VID3 VID1 NC CORERB_L CBOUT ADD 0 ADD 1 VRMPRES_L +5V ALWAYS VDD VDD VDD GND GND GND VDD VDD VDD VDD VDD VDD GND GND GND 1. Optional features. Substitute “NC” if option is not ordered. www.murata-ps.com Technical enquiries - email: [email protected], tel: +1 508 339 3000 ODC_VRK81B080CU.1 Page 3 of 4 VRK81B080CU Programmable, 80A Single Output DC/DC Converter PACKAGE SPECIFICATIONS (continued) MECHANICAL DIMENSIONS ."9 ."9 Recommended Interface Connector Options Typco/Elcon 283-0172-01303 (Solder Tail, Long) 283-0172-02303 (Solder Tail, Short) 284-0202-03003 (Surface Mount) *407*&8 '033&'0/-: All dimensions in inches ±0.03 (mm ±0.25mm). Weight: 2.08oz (59g) Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: [email protected] ISO 9001 and 14001 REGISTERED 01/19/09 Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2008 Murata Power Solutions, Inc. www.murata-ps.com USA: Mansfield (MA), Tel: (508) 339-3000, email: [email protected] Canada: Toronto, Tel: (866) 740-1232, email: [email protected] UK: Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] Singapore: Parkway Centre, Tel: +65 6348 9096, email: [email protected] Technical enquiries - email: [email protected], tel: +1 508 339 3000 ODC_VRK81B080CU.1 Page 4 of 4