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| NON-ISOLATED DC/DC CONVERTERS 3.0 V-3.6 V Input 5.0 V/3 A Output X7AH-03C500 * * * * Non-Isolated High Efficiency Fixed Frequency (530 kHz) Low Profile Package * * Allows Burst Mode Operation at Low Load Currents Trim Function (Option) Description The Bel X7AH-03C500 is a part of the low cost non-isolated dc/dc 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 is typically 90% at full load. Part Selection Output Voltage 5.0 V Input Voltage 3.0 V - 3.6 V Max. Output Current 3A Max. Output Power 15 W Typical Efficiency 90% Part Number Surface Mount S7AH-03C500 Part Number Vertical Mount V7AH-03C500 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) Ambient Temperature Storage Temperature Min 2.8 V 0 C -40 C Typ Max 4.0 V 70 C 125 C Notes Input Specifications Parameter Input Voltage Input Current Input Reflected Ripple Current (rms) Input Reflected Ripple Current (pk-pk) I t Inrush Current Transient Turn-on Voltage Threshold 2 Min 3.0 V - Typ 30 mA 100 mA 0.02 A s 2.8 V 2 Max 3.6 V 6.3 A 60 mA 150 mA 0.05 A s 2.9 V 2 Notes Note: The input reflected ripple current is measured with simulated source impedance of 500 nH, 5 Hz to 20 MHz; Use one 270 uF/16 V capacitor with ESR = 0.018 ohm max. at 100KHz at 25C. 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 3.0 V-3.6 V Input 5.0 V/3 A Output Output Specifications Parameter Output Voltage Set Point Load Regulation Line Regulation Regulation Over Temperature (0 C to 70 C) Output Current Ripple and Noise (RMS) Ripple and Noise (pk-pk) 1 1 Min 4.875 V 0A 2 Typ 5.0 V 25 mV 20 mV 20 mV 15 mV 100 mV 70 mV 30 mS 0% 100 mV 50 uS 100 mV 50 uS Max 5.125 V 50 mV 40 mV 30 mV 3A 25 mV 100 mV 50 mS 5% 1500 uF 150 mV 120 uS 150 mV 120 uS Io = 0 A Io = 3 A Notes Burst Mode Fixed Frequency Rise Time Overshoot at Turn on Output Capacitance Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO=5 V 0 uF - di/dt = 0.5 A/uS; Vin = 3.3 V; Ta = 25 C without external capacitor Notes: All specifications are typical at nominal input, full load at 25 C unless otherwise stated. 1. Test condition of the output ripple and noise: 0-20 MHz BW. 2. Recommend a 220 uF capacitor at output if the module operates at burst mode (light load). General Specifications Parameter Efficiency VO=5.0 V 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 87% 460 kHz 90% VO 90% 530 kHz 8,100,000 hours 0.78 x 0.7 x 0.32 19.81 x 17.78 x 8.13 0.7 x 0.308 x 0.65 17.78 x 7.82 x 16.51 5.2 g 630 kHz 110% VO Calculated Per Bell Core TR-332 (Vin=3.3 V; Vo=5 V; IO = 2.4 A; Ta = 25 C) Min Typ Max Notes 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 3.0 V-3.6 V Input 5.0 V/3 A Output 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. Vout Rtrim - down = ( 12.033 - 7.8) Vo - Vadj Rtrim-down Module Trim GND Vout Rtrim - up 3.808 =( - 4.64) Vadj - Vo Module Trim Rtrim-up GND Note: Output voltage Vo=5.0128 V when Rtrim is open. Efficiency Data Vo=5.0V efficiency curve 90.0% Efficiency 85.0% 80.0% 75.0% 0.300 0.750 1.500 2.250 Iout (A) 3.000 3.0 V 3.3 V 3.6 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 3.0 V-3.6 V Input 5.0 V/3 A Output Thermal Derating Curve X7AH-03C500 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 3.0 V-3.6 V Input 5.0 V/3 A Output S7AH-03C500 bel Pin Connections Pin 1 2 3 4 5 6 7 Function N/A Vin Ground Vout Trim N/A N/A V7AH-03C500 bel bel Pin Connections Pin 1 2 3 4 5 Function N/A Vin Ground Vout Trim 2005 Bel Fuse Inc. Specifications subject to change without notice. 040805 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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