VCN75-018V_084-20881-00 www.murata-ps.com DDR2 Memory Module Model: VCN75-018V Features: • • • • • • • • • • Supports DDR2 Memory Programmable Soft Start Circuit Over-Voltage Protection Over-Current Protection Remote Sense Power Good Signal Output Enable High Efficiency “1U” Height This product is not fuse protected. User is responsible for providing system protection. Consult factory for application information. Table 1: Input Characteristics Notes & Conditions* Input Voltage Operating Range Maximum Input Current Min. Typ. Max. 10.8 12.0 13.2 1.95Vout @ 75A/10.8Vin 16.0 Units Vdc A No-Load Input Current 300 mA Disabled Input Current 50 mA Input Reflected Ripple Current 1.95Vout @ 75A/13.2Vin Required External Input Capacitor OSCON Type 200 mA p-p 270 μF Table 2: Output Characteristics Output Voltage Set Point Notes & Conditions* Typ. Units Vdc Output Line Regulation ±0.5 % Output Load Regulation ±0.5 % 20MHz Bandwidth Output Current Operating Range Efficiency 1.7 Max. 2.5 Output Voltage Ripple & Noise Programmable Min. 50 0 100% Load 12Vin, 1.8Vout mV p-p 75 85 A % Turn-On Time 10 mS Remote Sense Compensation 10 %Vo nom Output Voltage Trim Range 1.7 2.5 V Required External Output Capacitance 1K 8K μF www.murata-ps.com email: [email protected] 29 Apr 2010 MDC_VCN75-018V_084-20881-00.B01 Page 1 of 5 VCN75-018V_084-20881-00 DDR2 Memory Module Table 3: Protection Characteristics Notes & Conditions* Min. Typ. Max. Units Output Current Limit Inception Hiccup Mode 100 A Over Voltage Shutdown Latching 115 %Vnom Fusing Unit is not fused. Table 4: General Specifications Enable Notes & Conditions* Min. Typ. LOW = Disable HIGH = Enable Max. 0.8 1.7 Units Vdc Vdc Storage Temperature -40 70 °C Operating Temperature 0 50 °C Material Flammability UL 94V-0 MTBF Calculated (RAC PRISM @ 50°C) 785 x103 Hrs Switching Frequency Per Phase 200 KHz Dimensions 3.0”L x 1.05”W x 1.1”H * Note: Vin = 12Vdc, Ta = 25°C, Airflow = 300LFM unless otherwise noted. Specifications subject to change without notice www.murata-ps.com email: [email protected] 29 Apr 2010 MDC_VCN75-018V_084-20881-00.B01 Page 2 of 5 VCN75-018V_084-20881-00 DDR2 Memory Module Programming the Output VDDQ RT1 VSENSE PLUS DRR Memory VRM LOAD RT2 VLOAD VSENSE MINUS GND Table 5: Vo* (Vo) RT1 (ohm) RT2 (ohm) 1.7 499 3261 1.75 499 2670 1.8 499 2260 1.85 499 1959 1.9 499 1729 1.95 499 1547 2 499 1400 2.1 499 1176 2.2 499 1014 2.3 499 891 2.4 499 795 2.5 499 717 *Vo measured at the load side www.murata-ps.com email: [email protected] 29 Apr 2010 MDC_VCN75-018V_084-20881-00.B01 Page 3 of 5 VCN75-018V_084-20881-00 DDR2 Memory Module Mechanical Information Table 6: Connector J1 Pin Name Function Connector J2 Pin Name Function 1 Power Good 1 GND 2 Output Enable 2 Vo 3 Sense- 3 GND 4 Sense+ 4 Vo 5 12Vin 5 GND 6 12Vin 6 Vo 7 GND 7 GND 8 GND 8 Vo 9 GND 10 Vo 11 GND 12 Vo 13 GND 14 Vo www.murata-ps.com email: [email protected] 29 Apr 2010 MDC_VCN75-018V_084-20881-00.B01 Page 4 of 5 VCN75-018V_084-20881-00 Ordering Information DDR2 Memory Module VCN75-018V Family Name Output Current 75 = 75A Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED Package V = Vertical Mount Factory Set Output Voltage 018 = 1.8Vout 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. © 2010 Murata Power Solutions, Inc. www.murata-ps.com/locations email: [email protected] 29 Apr 2010 MDC_VCN75-018V_084-20881-00.B01 Page 5 of 5