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| NON-ISOLATED DC/DC CONVERTERS 2.5V Input 0.9V-1.65V/10A Output X7AH-10J Series * * * * Non-Isolated Low profile package (7.82mm) Fixed frequency (300KHz) Under-voltage lockout (UVLO) * * * * Remote On/Off Short circuit protection Over current protection Trim Function Description The Bel X7AH-10Jxx0 is part of the low cost non-isolated DC/DC power converter series. The modules use a SMD or SIP package for ease of layout and space savings. The output is closely regulated and the efficiency of 1.5V output is typically 88% at full load. Typical features include remote on/off, input under voltage lockout, over current protection and short circuit protection. Part Selection Output Voltage 1.5V 1.2V 1.0V Input Voltage 2.5V 2.5V 2.5V Max. Output Current 10A 10A 10A Max. Output Power 15W 12W 10W Typical Efficiency 88% 83% 80% Part Number Surface Mount S7AH-10J150 S7AH-10J120 S7AH-10J100 Part Number Vertical Mount V7AH-10J150 V7AH-10J120 V7AH-10J100 Note: Add "0" suffix at the end of the model number to indicate "Tube Packaging", and "R" for "Reel Packaging", and "G" for "Tray Packaging". Absolute Maximum Ratings Parameter Input Voltage (continuous) Output Enable Terminal Voltage Ambient Temperature Storage Temperature Min -0.3V -0.3V -40C -40C Typ Max 6V 7V 85C 105C Notes Input Specifications Parameter Input Voltage Input Current (no load) Input Current (full load) Vo=1.5V Vo=1.2V Vo=1.0V 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 2V 1.8V 6.8A 5.6A 4.9A 4mA 80mA 25mA 0.04A2s 2.1V 2V 8mA 150mA 50mA 0.10A2s 2.15V 2.15V Tested with simulated source impedance of 500nH, 5Hz to 20MHz; with a 270uF/16V with ESR=0.018 ohm max, at 100KHz at 25C Min 2.25V Typ 2.5V 75mA Max 2.75V 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 2.5V Input 0.9V-1.65V/10A Output Output Specifications Parameter Output Voltage Set Point Vo=1.5V Vo=1.2V Vo=1.0V Line Regulation Vo=1.5V Vo=1.2V Vo=1.0V Load Regulation Vo=1.5V Vo=1.2V Vo=1.0V Regulation Over Temperature (-40C to +85C) Vo=1.5V Vo=1.2V Vo=1.0V Output Current Current Limit Threshold Short Circuit Surge Transient Vo=1.5V Vo=1.2V Vo=1.0V Ripple and Noise (RMS) Ripple and Noise (pk-pk) Turn on Time Overshoot at Turn on Output Capacitance Transient Response 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load 50% ~ 100% Max Load 100% ~ 50% Max Load Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time Overshoot Settling Time VO=1.0V VO=1.2V VO=1.5V 90mV 30uS 90mV 30uS 80mV 30uS 80mV 30uS 80mV 30uS 80mV 30uS 125mV 60uS 125mV 60uS 120mV 60uS 120mV 60uS 120mV 60uS 120mV 60uS Test conditions: di/dt = 0.5A/uS; Vin = 2.5V; with a 220uF tantalum capacitor at the output. 220uF 5mV 5mV 5mV 10mV 10mV 10mV 2mV 2mV 2mV 5mV 5mV 5mV Min 1.470V 1.176V 0.980V Typ 1.5V 1.2V 1.0V Max 1.530V 1.224V 1.020V Notes Test conditions: Vin=2.5V, Io=full load 0A 13A 13mV 10mV 9mV 2 0.5A s 0.5A2s 2 0.5A s 25mV 20mV 20mV 10A 25A 1.5A2s 1.5A2s 2 1.5A s 25mV 100mV 2mS 3% 4000uF Test conditions: 0-20MHz BW, with a 1uF ceramic capacitor at the output. 15mV 50mV 1mS 0% - 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 2.5V Input 0.9V-1.65V/10A Output General Specifications Parameter Efficiency VO=1.5V VO=1.2V VO=1.0V Switching Frequency Output Trim Range MTBF Dimensions (surface mount) Inches (L x W x H) Millimeters (L x W x H) Dimensions (vertical) Inches (L x W x H) Millimeters (L x W x H) Weight 85% 83% 79% 250KHz 90%Vo 88% 86% 82% 300KHz 4,447,157 hours 0.78 x 0.70 x 0.32 19.81 x 17.78 x 8.13 0.70 x 0.308 x 0.65 17.78 x 7.82 x 16.51 4.7g 350KHz 110%Vo Min Typ Max Notes Measured at Vin=2.5V, full load and Ta=25C. Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25C) - - Control Specifications Parameter Min 0V 2V Typ Max 0.5V 5.5V Notes Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Remote on/off pin open, the module is on. Output Trim Equations Equations for calculating the trim resistor (in k) given the desired adjusted voltage (Vadj) and the nominal output voltage of the converter (Vnom) are shown below. The Trim Down resistor should be connected between the Trim pin and Vout. The Trim Up resistor should be connected between the Trim pin and Ground. Only one of the resistors should be used for any given application. RTrimDown = Vnom 1.5V 1.2V 1.0V A -B Vnom - Vadj A 49.788 31.241 11.029 B 287.900 223.900 92.800 RTrimUp = Vadj C -D - Vnom D 226.000 162.000 56.200 C 43.330 43.330 25.550 Vout Module Trim GND Rtrimdown Module Vout Trim GND Rtrimup 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 2.5V Input 0.9V-1.65V/10A Output Efficiency Data 94.0% 92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 78.0% 76.0% 74.0% 72.0% 70.0% 1 2 3 4 5 6 7 8 9 10 Output Current Vin=2.25V Vin=2.50V Vin=2.75V 92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 78.0% 76.0% 74.0% 72.0% 70.0% 1 2 3 4 5 6 7 8 9 10 Output Current Efficiency Efficiency Vin=2.25V Vin=2.50V Vin=2.75V X7AH-10J150 90.0% 88.0% 86.0% 84.0% Efficiency 82.0% 80.0% 78.0% 76.0% 74.0% 72.0% 70.0% 1 2 3 4 5 6 7 8 9 10 Output Current Vin=2.25V Vin=2.50V Vin=2.75V X7AH-10J120 X7AH-10J100 Thermal Derating Curve Note: Derating curve is for 1.2V output and tested at nominal input voltage. 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 2.5V Input 0.9V-1.65V/10A Output bel Pin Connections Pin 1 2 3 4 5 6 7 Function Remote On/Off (option) Vin Ground Vout Trim (option) N/A N/A bel Pin Connections Pin Function Remote On/Off (option) Vin Ground Vout Trim (option) bel 1 2 3 4 5 (c)2004 Bel Fuse Inc. Specifications subject to change without notice. 120204 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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