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| NON-ISOLATED DC/DC CONVERTERS 2.4 V - 5.5 V Input 0.75 V - 3.63 V/16 A Output SRBC-16F1Ax Series * * * * * * Non-Isolated High Efficiency High Power Density Fixed Frequency (300 kHz) Remote On/Off Converter Can Sink and Source Current RoHS Compliant * * * * * * * Under-voltage Lockout (UVLO) Over Temperature Protection OCP/SCP Wide Input Wide Trim Range Remote Sense Active High/Low (option) Description The Bel SRBC-16F1Ax modules are a series of non-isolated dc/dc converters that 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 (Vin=2.4-5.5V). The open-frame construction and small footprint enable designers to develop cost and space-efficient solutions. Standard features include remote On/Off, over current protection, short current protection, wide input, and programmable output voltage. 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 W Typical Efficiency 94% Model Number Active Low SRBC-16F1AL Model Number Active High SRBC-16F1A0 Model Number Active Low SRBC-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 Note: All specifications are typical at 25 C unless otherwise stated. Input Specifications Parameter Input Voltage Vo1.5 V Vo=1.8 - 2.5 V Vo=3.3 V Input Current (full load) Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.75 V 11.23 A 8.70 A 6.40 A 5.45 A 4.52 A 3.05 A 15.10 A 14.81 A 13.64 A 11.76 A 9.64 A 6.69 A 2.4 V 3.0 V 4.5 V 5.5 V 5.5 V 5.5 V Min Typ Max Notes 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/16 A Output Input Specifications (continued) Parameter Input Current (no load) Remote Off Input Current 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 80 mA 10 mA 100 mA 40 mA 0.15 A s 2.2 V 2.0 V 2 Max 22 mA 0.3 A s 2 Notes With simulated source impedance of 1 uH, 5 Hz to 20 MHz and two 100 uF /10 V external input Tantalum capacitors at the input. Note: All specifications are typical at 25 C unless otherwise stated. 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 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time Vo=0.75-3.3 V Vo=0.75-3.3 V 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% 300 mV 50 uS 300 mV 50 uS 150 mV 100 uS 150 mV 100 uS 2 Max 2% Vo,set 3% Vo,set 16 A 35 A 2A s 50 mV 15 mV 8 mS 3% 1000 uF 5000 uF 2 Notes Vin=5 V, lo=lo max Over all operating input voltage, resistive load, and temperature conditions lo=lo min to lo max Vin=Vin min to Vin max Tested with 0-20 MHz, with external 10 uF/16 V tantalum capacitor &1 uF /10 V TDK ceramic capacitor di/dt=2.5 A/uS; Vin=5 V; and with external 10 uF / 16 V Tantalum capacitors and 1 uF/10 V ceramic capacitor at the output di/dt=2.5 A/uS; Vin=5 V; and with external 2 x 150 uF / 10 V Tantalum capacitors and 1 uF/10 V ceramic capacitor at the output Note: All specifications are typical at nominal input, 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/16 A Output General Specifications Parameter Efficiency Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.7525 V Switching Frequency Over Temperature Shutdown Output Voltage Trim Range Remote Sense Compensation MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 1.3 x 0.53 x 0.315 33.02 x 13.46 x 8.00 6.6 g 92% 90% 88% 85% 82% 76% 250 kHz 0.7525 V 94% 92% 90% 88% 85% 79% 300 kHz 125 C 5,438,000 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 = 80% Io, max; Vo=1.8 V; Vin=5.0 V; 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 SRBC-16F1A0; Remote On/Off pin open, Unit on. SRBC-16F1AL & SRBC-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/16 A Output Efficiency Data 100.0% 95.0% 90.0% 85.0% 80.0% 1 2 3 4 5 6 7 8 9 10111213141516 4.5V 5V 5.5V 100.0% 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3.0V 3.3V 5V 5.5V Vo=3.3 V Vo=2.5 V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3V 3.3 5V 5.5V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3V 3.3V 5V 5.5V Vo=1.8 V Vo=1.5 V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 55.0% 50.0% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 85.0% 3V 3.3V 5V 5.5 75.0% 65.0% 55.0% 45.0% 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 3V 3.3V 5V 5.5V Vo=1.2 V 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/16 A Output Thermal Derating Curves Vin=5.0 V, Vo=3.3 V or 2.5 V Vin=5.0 V, Vo=1.8 V or 1.5 V Vin=5.0 V, Vo=0.7525 V or 1.2 V Vin=3.3 V, Vo=1.8 V or 1.5 V Vin=3.3 V, Vo=0.7525 V or 1.2 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/16 A Output Ripple and Noise Waveforms Vin=5.0 V, Vo=0.75 V Vin=5.0 V, Vo=1.2 V Vin=5.0 V, Vo=1.5 V Vin=5.0 V, Vo=1.8 V Vin=5.0 V, Vo=2.5 V Vin=5.0 V, Vo=3.3 V Note: Ripple and noise is tested at 0-20 MHz BW, 10 uF/16 V tantalum capacitor and 1 uF/10 V ceramic capacitor, full load, and Ta=25 deg C. 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/16 A Output Transient Response Waveforms 50% to 100% load step at Vin=5 V, Vo=0.75 V 100% to 50% load step at Vin=5 V, Vo=0.75 V 50% to 100% load step at Vin=5 V, Vo=1.2 V 100% to 50% load step at Vin=5 V, Vo=1.2 V 50% to 100% load step at Vin=5 V, Vo=1.5 V 100% to 50% load step at Vin=5 V, Vo=1.5 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/16 A Output Transient Response Waveforms (continued) 50% to 100% load step at Vin=5 V, Vo=1.8 V 100% to 50% load step at Vin=5 V, Vo=1.8 V 50% to 100% load step at Vin=5 V, Vo=2.5 V 100% to 50% load step at Vin=5 V, Vo=2.5 V 50% to 100% load step at Vin=5 V, Vo=3.3 V 100% to 50% load step at Vin=5 V, Vo=3.3 V Note: Transient response is tested at di/dt=2.5 A/uS, with two 150 uF/10 V tantalum capacitors and 1uF/10 V ceramic capacitor, Ta=25 deg C. 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/16 A Output Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 7 Function Remote On/Off Vin N/A Ground Vout Trim Remote Sense PAD SIZE: MIN: 0.14"* 0.095" (3.56mm * 2.41mm) MAX: 0.165"* 0.11" (4.19mm * 2.79mm) 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. 032006 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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