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| NON-ISOLATED DC/DC CONVERTERS 2.4 V - 5.5 V Input 0.75 V - 3.63 V/16A Output VRBC-16F1Ax Series * * * * * * Non-Isolated High Efficiency High Power Density OCP/SCP Fixed Frequency (300 kHz) Converter can sink and source current RoHS Compliant * * * * * * * Under-voltage Lockout (UVLO) Over Temperature Protection Remote Sense Wide Input Wide Trim Range Remote On/Off Active Low/High (option) Description The Bel VRBC-16F1Ax modules are a series of non-isolated dc/dc converters that can deliver up to 16 A of output current with full load efficiency of 94% at 3.3 V output. These modules provide precisely regulated voltage programmable via external resistor from 0.75 V to 3.63 V over a wide range of input voltage (2.4 V 5.5 V). Their open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote ON/OFF, programmable output voltage and over current protection. Part Selection Output Voltage 0.75 V-3.63 V 1 Input Voltage 2.4 V-5.5 V Max. Output Current 16 A Max. Output Power 58.1 W Typical Efficiency 94% Model Number Active Low VRBC-16F1AL Model Number Active High VRBC-16F1A0 Model Number Active Low VRBC-16F1AW 2 Notes: 1. These modules use a buck topology, so the output voltages must be 0.8 V less than the input voltage. 2. "W" indicates special coating. 3. Add "G" to the end of the Model Number to indicate Tray Packaging. Absolute Maximum Ratings Parameter Input Voltage (continuous) Output Enable Terminal Voltage Ambient Temperature Storage Temperature Min -0.3 V -0.3 V -40 C -55 C Typ Max 5.8 V 5.8 V 85 C 125 C Notes Notes: All specifications are typical at 25 C unless otherwise stated. Input Specifications Parameter Input Voltage Input Current (full load) Vo=3.3 V Vo=1.8 V Vo=0.75 V Input Current (no load) Remote Off Input Current 11.23 A 6.47 A 3.08 A 80 mA 10 mA 12.89 A 13.55 A 6.67 A 22 mA Min 2.4 V Typ Max 5.5 V Notes Vo, set Vin-0.8 V 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 2.4 V - 5.5 V Input 0.75 V - 3.63 V/16A Output Input Specifications (continued) Parameter Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold 2 Min - Typ 100 mA 40 mA 0.15 A s 2.2 V 2.0 V 2 Max 0.3 A s 2 Notes Tested with two 100 uF / 10 V tantalum input capacitors (P/N: TPSC107K010R0075 AVX) & simulated source impedance of 1 uH, 5 Hz to 20 MHz. Output Specifications Parameter Output Voltage Set Point Output Voltage Set Point Load Regulation Line Regulation Regulation Over Temperature (-40 C to +85 C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (pk-pk) Ripple and Noise (rms) Turn on Time Overshoot at Turn on Output Capacitance ESR 1 mohm ESR 10 mohm Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO=0.75 V 3.3 V 150 mV 100 uS 150 mV 100 uS di/dt=2.5 A/uS; Vin=5 V; and with two 150 uF / 10 V tantalum capacitors & 1 uF / 10 V ceramic capacitor at the output VO=0.75 V 3.3 V 300 mV 50 uS 300 mV 50 uS di/dt=2.5 A/uS; Vin=5 V; and with 10 uF / 16 V tantalum capacitor & 1 uF / 10 V ceramic capacitor at the output Min -2% Vo,set -3% Vo,set 0A 19 A 0 uF 0 uF Typ 0.4% Vo,set 0.3% Vo,set 0.5% Vo,set 1.6 A s 25 mV 8 mV 4 mS 0% Vo,set 2 Max 2% Vo,set 3% Vo,set 16 A 35 A 2A s 50 mV 15 mV 8 mS 3% Vo,set 1000 uF 5000 uF 2 Notes Vin=5 V, lo=lomax full load Over all operating input voltages, resistive loads and temperature conditions Io=Io, min to Io, max Vin=Vin, min to Vin, max Tref=Ta, min to Ta, max Tested with 0-20 MHz, 10 uF / 16 V tantalum capacitor & 1 uF / 10 V TDK ceramic capacitor at the output Note: All specifications are typical at nominal input (Vin = 5 V), full load at 25 C unless otherwise stated. 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 2.4 V - 5.5 V Input 0.75 V - 3.63 V/16A Output General Specifications Parameter Efficiency Vo=3.3 V Vo=1.8 V Vo=0.75 V Switching Frequency Over Temperature Shutdown Output Trim Range (Wide Trim) Remote Sense Compensation MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 2.0 x 0.5 x 0.363 50.80 x 12.7 x 9.23 8.3 g 91% 86% 75% 250 KHz 0.7525 V 94% 89% 78% 300 KHz 125C 5,500,000 hours 350 KHz 3.63 V 5% Total adjustment of trim, setpoint and remote sense combined should not exceed 3.63 V. Vo=0.7525 V when trim pin open Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 C) Measured at Vin=5 V, full load Min Typ Max Notes Note: All specifications are typical at 25 C unless otherwise stated. Control Specifications Parameter Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off) Min -0.3 V 1.5 V -0.3 V 1.5 V Typ Max 0.3 V 5.8 V 0.3 V 5.8 V Notes VRBC-16F1A0; Remote On/Off pin open, Unit on. VRBC-16F1AL & VRBC-16F1AW; Remote On/Off pin open, Unit on. Output Trim Equations Equation for calculating the trim resistor (in k) given the desired adjusted voltage (Vadj) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. Vout Rtrim = 21.07 - 5.11 Vadj - 0.7525 Module Trim GND Rtrim Equation for calculating the trim voltage (in V) given the desired adjusted voltage (Vadj) is shown below. The Trim Up voltage should be connected between the Trim pin and Ground. Vout Vtrim = 0.7 - 0.1698 x (Vadj - 0.7525) Module Trim Vtrim GND 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 2.4 V - 5.5 V Input 0.75 V - 3.63 V/16A Output Efficiency Data 98.0% 96.0% 94.0% 92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 1.6 4.5V 5.0V 5.5V 4.0 8.0 12.0 16.0 Vo=3.3 V 100.0% 95.0% 90.0% 85.0% 80.0% 75.0% 2.4V 5.0V 5.5V 4.0 8.0 12.0 16.0 70.0% 1.6 Vo=1.8 V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 1.6 4.0 8.0 12.0 16.0 2.4V 5.0V 5.5V Vo=0.75 V 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 2.4 V - 5.5 V Input 0.75 V - 3.63 V/16A Output Thermal Derating Curves Vo=3.3 V Vo=1.8 V Vo=0.7525 V 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 2.4 V - 5.5 V Input 0.75 V - 3.63 V/16A Output Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 7 8 9 10 11 Function Vout Vout Vo,sense Vout Ground Ground Vin Vin N/A Trim Remote On/Off RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. (c)2006 Bel Fuse Inc. Specifications subject to change without notice. 011906 CORPORATE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com FAR EAST 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 EUROPE 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 |
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