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| NON-ISOLATED DC/DC CONVERTERS 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output SRBA-06A1Ax Series * * * * * Non-Isolated High Efficiency High Power Density Fixed Frequency Remote On/Off RoHS Compliant * * * * * Under-Voltage Lockout (UVLO) OCP/SCP Wide Input Range Wide Output Trim Range Active Low/High Description The Bel SRBA-06A1Ax modules are a series of non-isolated dc/dc converters that deliver up to 6 A of output current with full load efficiency of 92% at 5.0 V output. These modules pro Vide precisely regulated Voltage programmable via external resistor from 0.75 V to 5.0 V over a wide range of input voltage (8.3 V-14 V). 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 - 5.0 V Input Voltage 8.3 V - 14 V Max. Output Current 6A Max. Output Power 30.0 W Typical Efficiency 92% Model Number Active Low SRBA-06A1AL Model Number Active High SRBA-06A1A0 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 -0.3 V -0.3 V -40 C -55 C Typ Max 15 V 15 V 85 C 125 C Notes Notes: All specifications are typical at 25 C unless other Wise stated. Input Specifications Parameter Input Voltage Input Current (full load) Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.2 V Vo=0.75 V Input Current (no load) Vo=5.0 V Vo=0.75 V Remote Off Input Current Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) I2t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold 1 mA 120 mA 40 mA 0.002 A2s 8.1 V 7.5 V 100 mA 20 mA 2 mA 0.02 A2s 8.2 V 8.0 V Tested with two 100 uF/25 V tantalum input capacitors & simulated source impedance of 1 uH, 5 Hz to 20 MHz. Min 8.3 V Typ 12 V 2.75 A 1.85 A 1.45 A 1.05 A 0.75 A 0.55 A Max 14 V 4.0 A 2.8 A 2.2 A 1.6 A 1.1 A 0.8 A 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 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Output Specifications Parameter Output Voltage Set Point Output Voltage Set Point Adjustment Range Selected by External Resistor or Voltage Load Regulation Line Regulation Regulation Over Temperature (-40 C to +8 C) Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (pk-pk) Vo=0.75 V-3.63 V Ripple and Noise (rms) Vo=0.75 V-3.63 V Ripple and Noise (pk-pk) Vo=5.0 V Ripple and Noise (rms) Vo=5.0 V Turn on Time Overshoot at Turn on Output Capacitance ESR 1 mohm ESR 10 mohm Transient Response 50% ~ 100% Max Load Settling Time VO = 0.75 V -5 V 100% ~ 50% Max Load Settling Time Min -2% Vo,set -2.5% Vo,set 0.7525 V 0A 7.2A 0 uF 0 uF Typ 0.4% Vo,set 0.3% Vo,set 0.5% Vo,set 2 0.25A s 50 mV 15 mV 75 mV 30 mV 8 mS 0% 200 m V 50 uS 200 m V 50 uS Max 2% Vo,set 3.5% Vo,set 5.0 V 6A 18A 75 mV 30 mV 100 mV 40 mV 10 mS 3% 1000 uF 3300 uF di/dt=2.5 A/uS; Vin=12 V; and With 10 uF/10 V tantalum capacitor & 1 uF/10 V ceramic capacitor at the output. Tested with 0-20MHz, with 10 uF/10 V tantalum capacitor & 1 uF/10 V TDK ceramic capacitor at the output. Io=Io, min to Io, max Vin= Vin, min to Vin, max Tref=Ta, min to Ta, max Notes Vin=12 V, full load Over all operating input voltages, resistive loads and temperature conditions Note: All specifications are typical at nominal input, full load at 25 C unless other wise stated. General Specifications Parameter Efficiency Vo=5.0 V Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.2 V Vo=0.75 V Switching Frequency Over Temperature Shutdown Output Trim Range (Wide trim) MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 0.8 x 0.45 x 0.251 20.32 x 11.42 x 6.38 3g 90% 87% 85% 83% 79% 71% 250 kHz 0.7525 V 92% 89% 88% 86% 82% 74% 300 kHz 135 C 3,079,469 hours 350 kHz 5V Measured at Vin=12 V, full load Min Typ Max Notes Calculated Per Bell Core SR-332 (IO = Nominal; Ta = 25 C) Note: All specifications are typical at 25 C unless other wise 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 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Control Specifications Parameter Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off) -0.3 V 2.5 V -0.3 V 2.5 V 0.4 V 14 V 0.4 V 14 V SRBA-06A1A0; Remote On/Off pin open, Unit on. SRBA-06A1AL; Remote On/Off pin open, Unit on. Min Typ Max 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 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Efficiency Data MODULE 3.3V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT MODULE 5.0V 100.0% EFFICIENCY 90.0% 85.0% 80.0% 75.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT 8.3 12.0 14.0 EFFICIENCY 95.0% 8.3V 12.0V 14.0V MODULE 2.5V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT MODULE 1.8V 95.0% 90.0% 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT EFFICIENCY EFFICIENCY 8.3V 12.0V 14.0V 8.3V 12.0V 14.0V MODULE 1.2V 90.0% EFFICIENCY 80.0% 70.0% 60.0% 50.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT MODULE 0.75V 90.0% EFFICIENCY 8.3V 12.0V 14.0V 80.0% 70.0% 60.0% 50.0% 1A 2A 3A 4A 5A 6A OUTPUT CURRENT 8.3V 12.0V 14.0V 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 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output Thermal Derating Curves Vin=12 V, Vo=0.75 V Vin=12 V, Vo=2.5 V Vin=12 V, Vo=5.0 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 8.3 V-14 V Input 0.75 V-5.0 V/6 A Output RECOMMENDED PAD LAYOUT Pin Connections Pin 1 2 3 4 5 6 Function Remote On/Off Vin+ No Pin Ground Trim Vout+ PAD SIZE: MIN: 0.12"* 0.095" (3.05mm * 2.41mm) MAX: 0.135"* 0.11" (3.43mm * 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. These parts are not however compatible with the higher temperatures associated with lead free solder processes and must be soldered using a reflow profile with a peak temperature of no more than 240C (c)2005 Bel Fuse Inc. Specifications subject to change without notice. 090105 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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