NON-ISOLATED DC/DC CONVERTERS 3 - 15V Input / Programmable Output / 30A VRM 8.5 Compatible G7NA-30D180 • High efficiency means less power dissipation • Remote on/off • Ultrawide input range (3V - 15V) • Very wide trim range (-100%, +200%) • 2-Wire Remote sense • 5 bit VID digital voltage programming. • Single wire current sharing Description The G7NA-30D Series is a non-isolated step down DC/DC converters providing up to 30A of output current and designed to be compatible to the Intel VRM8.5 specification. Standard features include current share, remote on/off, over current protection, remote sense and a power good signal. Optional features include adjustable undervoltage lockout, output current monitor and output trim. This product also makes use of adaptive positioning to improve transient response performance. These products may be used almost anywhere lowvoltage silicon is being employed and a nominal 12V, 5V or 3.3V source is available. Typical applications include file servers, routers, and other computing and communications equipment. Input Specifications Parameter Input Voltage Range Input Current (disabled) Input Current (full load) Reflected Ripple Current Min 3 VDC Typ Max 15 VDC Notes 17mA 22A 200mA rms With 100uF, 25mOhm capacitor and 200nH of input inductance. Output Specifications Parameter Voltage Adjustability Output Current Set Point Accuracy Min -100% 0A 1.85V Adaptive Positioning (Droop Impedance) Typ 1.87 Notes no load, excluding Adaptive positioning 3.214 mOhm Ripple and Noise 20mV Turn on Time Transient Response 6mS Deviation Settling Time pk-pk, 0 to 20MHz Bandwidth Full load with external 1800uF oscon capacitor on output. 10mS di/dt = 5A/uS Load step =50% of max load. 85mV 35uS Remote Sense Compensation Output Capacitance Max +200% 30A 1.89 ±0.3VDC 1800uF 20,000uF For applications requiring higher or lower output capacitance please consult factory. Bel Fuse Inc. 206 Van Vorst Street, Jersey City, NJ 07302 • Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com NON-ISOLATED DC/DC CONVERTERS 3 – 15V Input / Programmable Output / 30A VRM 8.5 General Specifications Pin Connections Parameter Switching Frequency Dimensions Specification 540kHz typical (fixed) inches mm 2.75 x 1.5 x 0.48 69.8 x 38.1 x 27.9 TBD 0°C to 70°C -40°C to 100°C Weight Operating Temperature Non-Operating Temperature Protection Features Over current Undervoltage Remote On/Off Efficiency (full load) 1.8V output 115% to 200% max Io UVLO Vin < 9.5V Active High 82% Voltage Identification (VID) Code VID25mV VID3 VID2 VID1 VID0 Vo (VDC) 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 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 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 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 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 1.05 1.075 1.1 1.125 1.15 1.175 1.2 1.225 1.25 1.275 1.3 1.325 1.35 1.375 1.4 1.425 1.45 1.475 1.5 1.525 1.55 1.575 1.6 1.625 1.65 1.675 1.7 1.725 1.75 1.775 1.8 1.825 Row A Row B Pin Function Pin Function 1 Vin 50 Vin 2 Vin 49 Vin 3 Vin 48 Vin 4 Vin 47 Vin 5 Reserved 46 Reserved 6 Reserved 45 Reserved 7 Trim 44 No contact 8 VID 0 43 VID 1 9 VID 2 42 VID 3 10 VID 25mV 41 PWRGD 11 OUTEN 40 Ishare 12 Vtt_pwrgd 39 Vtt 13 -Vsense 38 RTN 14 +Vsense 37 RTN 15 Vout 36 Vout 16 RTN 35 RTN 17 Vout 34 Vout 18 RTN 33 RTN 19 Vout 32 Vout 20 RTN 31 RTN 21 Vout 30 Vout 22 RTN 29 RTN 23 Vout 28 Vout 24 RTN 27 RTN 25 Vout 26 Vout Notes: 1. Mechanical key between pins 17 & 18 and 33 & 34 2. If Vtt circuitry is not used, tie Vtt (pin 39) to a voltage of 1.5V or greater. 3. Use mating connector Tyco AMP 1454322 or equivalent 2003 Bel Fuse Inc. Specifications subject to change without notice. 081903 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com Bel Fuse Ltd. 8F/ 8 Luk Hop Street San Po Kong Kowloon, Hong Kong Tel 852-2328-5515 Fax 852-2352-3706 www.belfuse.com Bel Fuse Europe Ltd. Preston Technology Management Centre Marsh Lane, Suite G7, Preston Lancashire, PR1 8UD, U.K. Tel 44-1772-556601 Fax 44-1772-888366 www.belfuse.com