NON-ISOLATED DC/DC CONVERTERS 2.5V Input 0.9V-1.65V/10A Output x7AH-10J Series • Non-Isolated • Remote On/Off • Low profile package (7.82mm) • Short circuit protection • Fixed frequency (300KHz) • Over current protection • Under-voltage lockout (UVLO) • 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 -40°C -40°C Typ - Max 6V 7V 85°C 105°C Notes Input Specifications Parameter Input Voltage Input Current (no load) Min 2.25V - Typ 2.5V 75mA Max 2.75V - - 6.8A 5.6A 4.9A - Remote Off Input Current - 4mA 8mA Input Reflected Ripple Current (pk-pk) - 80mA 150mA Input Reflected Ripple Current (RMS) - 25mA 50mA 2V 1.8V 0.04A2s 2.1V 2V 0.10A2s 2.15V 2.15V Notes Input Current (full load) Vo=1.5V Vo=1.2V Vo=1.0V I2t Inrush Current Transient Turn on Voltage Threshold Turn off Voltage Threshold Tested with simulated source impedance of 500nH, 5Hz to 20MHz; with a 270uF/16V with ESR=0.018 ohm max, at 100KHz at 25°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 2.5V Input 0.9V-1.65V/10A Output Output Specifications Parameter Output Voltage Set Point Min Typ Max Vo=1.5V Vo=1.2V Vo=1.0V 1.470V 1.176V 0.980V 1.5V 1.2V 1.0V 1.530V 1.224V 1.020V Vo=1.5V Vo=1.2V Vo=1.0V - 2mV 2mV 2mV 5mV 5mV 5mV Vo=1.5V Vo=1.2V Vo=1.0V - 5mV 5mV 5mV 10mV 10mV 10mV Vo=1.5V Vo=1.2V Vo=1.0V - 13mV 10mV 9mV 25mV 20mV 20mV Output Current 0A - 10A Current Limit Threshold 13A - 25A - 2 0.5A s 0.5A2s 2 0.5A s 1.5A2s 1.5A2s 2 1.5A s Ripple and Noise (RMS) - 15mV 25mV Ripple and Noise (pk-pk) - 50mV 100mV Turn on Time - 1mS 2mS Overshoot at Turn on - 0% 3% 220uF - 4000uF - 90mV 125mV - 30uS 60uS - 90mV 125mV - 30uS 60uS Notes Test conditions: Vin=2.5V, Io=full load Line Regulation Load Regulation Regulation Over Temperature (-40°C to +85°C) Short Circuit Surge Transient Vo=1.5V Vo=1.2V Vo=1.0V Output Capacitance Test conditions: 0-20MHz BW, with a 1uF ceramic capacitor at the output. Transient Response Overshoot 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load Overshoot - 80mV 120mV Settling Time - 30uS 60uS - 80mV 120mV - 30uS 60uS Overshoot Overshoot VO=1.5V VO=1.2V 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load Overshoot - 80mV 120mV Settling Time - 30uS 60uS - 80mV 120mV - 30uS 60uS 100% ~ 50% Max Load Overshoot Settling Time VO=1.0V Test conditions: di/dt = 0.5A/uS; Vin = 2.5V; with a 220uF tantalum 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 2.5V Input 0.9V-1.65V/10A Output General Specifications Parameter Min Typ Max Notes 85% 83% 79% 250KHz 90%Vo 88% 86% 82% 300KHz - 350KHz 110%Vo Efficiency VO=1.5V VO=1.2V VO=1.0V Switching Frequency Output Trim Range MTBF Measured at Vin=2.5V, full load and Ta=25°C. Calculated Per Bell Core TR-332 (IO = Nominal; Ta = 25°C) 4,447,157 hours Dimensions (surface mount) Inches (L × W × H) Millimeters (L × W × H) Dimensions (vertical) Inches (L × W × H) Millimeters (L × W × H) Weight 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 - Control Specifications Parameter Min Typ Max Signal Low (Unit Off) 0V - 0.5V Signal High (Unit On) 2V - 5.5V Notes Remote On/Off Remote on/off pin open, the module is on. Output Trim Equations Equations for calculating the trim resistor (in kΩ) 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 = A −B Vnom − Vadj Vnom 1.5V 1.2V 1.0V A 49.788 31.241 11.029 RTrimUp = B 287.900 223.900 92.800 Vadj C 43.330 43.330 25.550 Vout Module Trim GND C −D − Vnom D 226.000 162.000 56.200 Vout Rtrimdown Module 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 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% Efficiency Efficiency Efficiency Data 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% Vin=2.25V Vin=2.50V Vin=2.75V 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 Output Current Output Current X7AH-10J150 X7AH-10J120 90.0% 88.0% 86.0% Efficiency 84.0% 82.0% Vin=2.25V 80.0% Vin=2.50V 78.0% Vin=2.75V 76.0% 74.0% 72.0% 70.0% 1 2 3 4 5 6 7 8 9 10 Output Current 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 Function 1 Remote On/Off (option) 2 Vin 3 Ground 4 Vout 5 Trim (option) 6 N/A 7 N/A Pin Connections bel bel Pin Function 1 Remote On/Off (option) 2 Vin 3 Ground 4 Vout 5 Trim (option) ©2004 Bel Fuse Inc. Specifications subject to change without notice. 120204 CORPORATE FAR EAST EUROPE Bel Fuse Inc. 206 Van Vorst Street Jersey City, NJ 07302 Tel 201-432-0463 Fax 201-432-9542 www.belfuse.com 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 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