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| NON-ISOLATED DC/DC CONVERTERS 4.5V-14V Input 0.75V-5.0V/3A Output S7BA-03E1AX Series * * * * * Non-Isolated Fixed Frequency High Efficiency High Power Density Under-voltage Lockout (UVLO) * * * * * OCP/SCP Remote On/Off Wide Trim Range Wide Input Range Active Low/Active High (Option) Description The Bel S7BA-03E1AX modules are a series of non-isolated DC/DC converters that deliver up to 3A of output current with full load efficiency of 93% at 5.0V output. These modules provide precisely regulated voltage programmable via external resistor from 0.75V to 5.0V over a wide range of input voltage. 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 0.75V - 5.0V Input Voltage 4.5V - 14V Max. Output Current 3A Max. Output Power 15W Typical Efficiency at 5.0V 93% Model Number Active High S7BA-03A1A0 Model Number Active Low S7BA-03A1AL Note: Add "G" suffix at 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 -0.3V -0.3V -40C -55C Typ Max 15V 15V 85C 125C Notes Note: All specifications are typical at 25C unless otherwise stated. Input Specifications Parameter Input Voltage Vo,set3.3V Vo,set=5V Input Current (full load) Vo=5.0V Vo=3.3V Vo=0.75V Input Current (no load) Vo=5.0V Vo=3.3V Vo=0.75V Remote Off Input Current 65mA 50mA 15mA 3mA 80mA 60mA 20mA 6mA 1.35A 1.00A 0.25A 3.70A 2.50A 0.65A 4.5V 7.0V 12V 12V 14V 14V 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 4.5V-14V Input 0.75V-5.0V/3A Output Min Typ 150mA 100mA 35mA 30mA 20mA 8mA 0.01A2s 5.5V 4.3V 5.5V 4.0V Max 200mA 150mA 45mA 40mA 35mA 15mA 0.02A2s 6.5V 4.5V 6.0V 4.3V Notes Tested with simulated source impedance of 1uH, 5Hz to 20MHz and two 100uF/25V external input Tantalum capacitors. Input Specifications (continued) Parameter Input Reflected Ripple Current (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V Input Reflected Ripple Current (RMS) Vo=5.0V Vo=3.3V Vo=0.75V I2t Inrush Current Transient Turn-on Voltage Threshold Vo set=5V Vo set3.3V Turn-off Voltage Threshold Vo set=5V Vo set3.3V Output Specifications Parameter Output Voltage Set Point Output Voltage Set Point Load Regulation Line Regulation Regulation Over Temperature (-40C to +85C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise1 (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V Ripple and Noise1 (RMS) Vo=5.0V Vo=3.3V Vo=0.75V Ripple and Noise2 (pk-pk) Vo=5.0V Vo=3.3V Vo=0.75V Ripple and Noise2 (RMS) Vo=5.0V Vo=3.3V Vo=0.75V Turn on Time Overshoot at Turn on Output Capacitance Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time Min -2%Vo,set -3.5%Vo,set 0.4%Vo,set 0.4%Vo,set 0A 5A 0uF Typ 0.2%Vo,set 0.3%Vo,set 0.5%Vo,set 2 0.1A s 100mV 80mV 55mV 30mV 20mV 15mV 60mV 40mV 20mV 15mV 12mV 5mV 8mS 0% 150mV 25uS 150mV 25uS Max 2%Vo,set 2.5%Vo,set 0.4%Vo,set 0.4%Vo,set 3A 9.5A 0.2A2s 120mV 100mV 80mV 40mV 30mV 20mV 80mV 50mV 30mV 25mV 20mV 10mV 12mS 3% 1200uF 200mV 40uS 200mV 40uS Test conditions: 0-20MHz BW, with external 10uF/10V Tantalum capacitor and 1uF/10V ceramic capacitor at the output. Notes Vin=12V, lo=lomax Over all operating input voltage, resistive load, and temperature conditions lo=lomin to lomax Vin=Vinmin to Vinmax Test conditions: 0-20MHz BW, with external 10uF/10V Tantalum capacitor 1uF/10V ceramic capacitor and two 22uF/10V ceramic capacitors at the output. All Test conditions: di/dt = 2.5A/uS, Vin=12V, and with external 10uF/10V Tantalum capacitor and 1uF/10V ceramic capacitor at the output. Note: All specifications are typical at nominal input (Vin=12V), full load at 25C 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 4.5V-14V Input 0.75V-5.0V/3A Output General Specifications Parameter Efficiency Vo=5.0V Vo=3.3V Vo=0.75V Switching Frequency Output Voltage Trim Range (Wide Trim) MTBF Dimensions (Surface Mount) Inches (L x W x H) Millimeters (L x W x H) Weight 90% 88% 77% 200KHz 0.7525V 93% 91% 80% 230KHz 6,350,000 hours 0.8 x 0.45 x 0.251 20.32 x 11.42 x 6.38 2.5g 250KHz 5V Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25C) Measured at Vin=12V, full load Min Typ Max Notes - - Note: All specifications are typical at 25C 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 -0.3V 2.5V -0.3V 2.5V Typ Max 0.4V 14V 0.4V 14V Remote On/Off pin open, Unit on. Notes 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 = 10.507 -1 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 - 0.0667 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 4.5V-14V Input 0.75V-5.0V/3A Output Efficiency Data MODULE 5.0V 100.0% EFFICIENCY 90.0% 80.0% 70.0% 60.0% 0.30A 7.0V 12.0V 14.0V 0.75A 1.50A 2.25A OUTPUT CURRENT 3.00A MODULE 3.3V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.30A 0.75A 1.50A 2.25A OUTPUT CURRENT EFFICIENCY 4.5V 12.0V 14.0V 3.00A MODULE 0.75V 90.0% EFFICIENCY 80.0% 70.0% 4.5V 60.0% 50.0% 0.30A 1.75A 1.50A 2.25A OUTPUT CURRENT 12.0V 14.0V 3.00A 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 4.5V-14V Input 0.75V-5.0V/3A Output Thermal Derating Curves Vin=12V, Vo=5.0V Vin=12V, Vo=3.3V Vin=12V, Vo=0.75V 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 4.5V-14V Input 0.75V-5.0V/3A Output Pin Connections Pin 1 2 3 4 5 6 Function Remote On/Off Vin N/A Ground Trim Vout RECOMMENDED PAD LAYOUT PAD SIZE: MIN: 0.12" *0.095" (3.05mm*2.41mm) MAX: 0.135"*0.11" (3.43mm*2.79mm) (c)2005 Bel Fuse Inc. Specifications subject to change without notice. 020605 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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