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| NON-ISOLATED DC/DC CONVERTERS 2.4V-5.5V Input 0.75V-3.63V/6A Output S7BA-06F2AX Series * * * * * * * Non-Isolated High Efficiency High Power Density Excellent Thermal Performance Low Cost Remote On/Off Flexible Output Voltage Sequencing * * * * * * * * Under-voltage Lockout (UVLO) Over Temperature Protection OCP/SCP Wide Input Wide Trim Range Active Low/High (option) Able to Sink & Source Current Fixed Frequency (300KHz) Description The Bel S7BA-06F2AX modules are a series of non-isolated dc-dc converters that deliver up to 6A of output current with full load efficiency of 93% at 3.3V output. These modules provide precisely regulated voltage programmable via external resistor from 0.75V to 3.63V over a wide range of input voltage (2.4V-5.5V). These modules have a sequencing feature that enables designers to implement various types of output voltage sequencing when powering multiple voltages on a board. 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 0.75V -3.63V Input Voltage 2.4V - 5.5V Max. Output Current 6A Max. Output Power 21.8W Typical Efficiency 93% Model Number Active Low S7BA-06F2AL Model Number Active High S7BA-06F2A0 Note: Add "G" to the end of the Model Number to indicate Tray Packaging. Absolute Maximum Ratings Parameter Input Voltage (continuous) Output Enable Terminal Voltage Sequencing Voltage 1 Min -0.3V -0.3V -0.3V -40C -55C Typ - Max 5.8V 5.5V Vin 85C 125C Notes Ambient Temperature Storage Temperature Notes: All specifications are typical at 25C unless otherwise stated. 1. S7BA-06F2AX series of modules include a sequencing feature that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When the sequencing feature is not used, tie the SEQ pin to Vin. 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 2.4V-5.5V Input 0.75V-3.63V/6A Output Min 2.4V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V Vo=1.2V Vo=0.75V Input Current (no load) Vo=3.3V Vo=0.75V 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 1.8V 50mA 25mA 0.6mA 120mA 35mA 2.05V 2.0V 0.04A2s 2.4V Typ Max 5.5V 4.73A 5.49A 5.11A 4.31A 3.57A 2.40A Notes Vo, set Vin-0.5V Input Specifications Parameter Input Voltage Input Current (full load) Tested with simulated source impedance of 1uH, 5Hz to 20MHz. 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 (-40C to +85C) 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 1mohm ESR 10mohm Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time Min -2%Vo,set -3%Vo,set 0.7525V 0A 9A 0uF 0uF Typ 0.4%Vo,set 0.3%Vo,set 0.4%Vo,set 0.32A2s 40mV 10mV 6mS 0% 130mV 25uS 130mV 25uS Max 2%Vo,set 3%Vo,set 3.63V 6A 18A 70mV 30mV 10mS 3% 1000uF 3000uF di/dt=2.5A/uS; Vin=5V; and with 10uF tantalum capacitor & 1uF/10V TDK ceramic capacitor at output Io=0%~50% full load; Io=50%~100% full load Vin=Vin, min to Vin, max Tref=Ta, min to Ta, max Hiccup mode Tested with 0-20MHz, with 10uF tantalum capacitor & 1uF/10V ceramic capacitor at output Notes Vin=5V, 50% full load Over all operating input voltages, resistive loads and temperature conditions VO = 0.75V 3.63V Note: All specifications are typical at nominal input, 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 2.4V-5.5V Input Parameter Efficiency Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V Vo=1.2V Vo=0.75V Switching Frequency Over Temperature Shutdown Output Voltage Trim Range MTBF Dimensions Inches (L x W x H) Millimeters (L x W x H) Weight 0.8 x 0.45 x 0.25 20.32 x 11.42 x 6.36 5g 250KHz 0.7525V 93% 91% 88% 87% 84% 78% 300KHz 135C 6,954,974 hours 350KHz 3.63V Measured at Vin=5V, full load 0.75V-3.63V/6A Output Min Typ Max Notes General Specifications Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25C) 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) Sequencing Voltage Sequencing Slew Rate Capability Sequencing Delay Time Tracking Accuracy Power-Up Power-Down 100mV 200mV 200mV 400mV Min -0.2V -0.2V 1.5V 0V 10mS Typ Max 0.3V Vin, max 0.3V Vin, max Vin 2V/mS Delay from Vin, min to application of voltage on SEQ pin Notes Active High: S7BA-06F2A0; Remote On/Off pin open, Unit on. Active Low: S7BA-06F2AL; Remote On/Off pin open, Unit on. Sequencing Voltage applied on SEQ pin should be higher than output voltage. 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 RTrimUp = 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 VTrimUp = 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 2.4V-5.5V Input 0.75V-3.63V/6A Output Efficiency Data 3.3V Module 100.0% 95.0% 90.0% 2.5V Module 100.0% 95.0% 90.0% Efficiency 4.5V 5V 5.5V Efficiency 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.6A 1.5A 3.0A Output Current 4.5A 6.0A 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.6A 1.5A 3.0A Output Current 4.5A 6.0A 3V 5V 5.5V Vo=3.3V 1.8V Module 100.0% 95.0% 90.0% Efficiency 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.6A 1.5A 3.0A Output Current 4.5A 6.0A Vo=2.5V 1.5V Module 100.0% 95.0% 90.0% Efficiency 3V 5V 5.5V 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.6A 1.5A 3.0A Output Current 4.5A 6.0A 3V 5V 5.5V Vo=1.8V 1.2V Module 100.0% 95.0% 90.0% Efficiency 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.6A 1.5A 3.0A Output Current 4.5A 6.0A Vo=1.5V 0.7525V Module 100.0% 95.0% 90.0% Efficiency 3V 5V 5.5V 85.0% 80.0% 75.0% 70.0% 65.0% 60.0% 0.6A 1.5A 3.0A Output Current 4.5A 6.0A 3V 5V 5.5V Vo=1.2V Vo=0.7525V 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 2.4V-5.5V Input 0.75V-3.63V/6A Output Thermal Derating Curves 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 2.4V-5.5V Input 0.75V-3.63V/6A Output Pin Connections Pin 1 2 3 4 5 6 Function Remote On/Off Vin+ SEQ Ground Trim Vout+ (c)2004 Bel Fuse Inc. Specifications subject to change without notice. 111904 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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