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| NON-ISOLATED DC/DC CONVERTERS 5.4 V - 13.2 V Input / 1.0 V - 5.0 V Output / 20 A SRDB-20EXXH Series * * * * Non-Isolated OCP/SCP/OVP Low Profile Package Remote On/Off (Active High) RoHS Compliant * * * Wide Input Remote Sense Under-Voltage Lockout (UVLO) Description The Bel SRDB-20EXXH is part of the non-isolated dc/dc converter Power Module series. The modules use a DIP package for ease of layout and space savings. The output is closely regulated and the efficiency of 5 V output module is typically 94% at full load. Part Selection Output Voltage 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V 1.0 V Input Voltage 8.0 V - 13.2 V 5.8 V - 13.2 V 5.4 V - 13.2 V 5.4 V - 13.2 V 5.4 V - 13.2 V 5.4 V - 13.2 V 5.4 V - 13.2 V Max. Output Current 20 A 20 A 20 A 20 A 20 A 20 A 20 A Max. Output Power 100 W 66 W 50 W 36 W 30 W 24 W 20 W Typical Efficiency 94% 92% 91% 88% 87% 85% 84% Model Number SRDB-20E50H SRDB-20E33H SRDB-20E25H SRDB-20E18H SRDB-20E15H SRDB-20E12H SRDB-20E10H Note: Add "R" suffix at the end of the model number to indicate "Reel Packaging", and "G" for "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 -40 C Typ Max 16 V 16 V 85 C 125 C Notes Input Specifications Parameter Input Voltage Vo=5.0 V Vo=3.3 V Vo=1.0-2.5 V Input Current (full load) VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=1.0 V Min 8V 5.8 V 5.4 V Typ Max 13.2 V 13.2 V 13.2 V 15.1 A 14.1 A 13.3 A 10.4 A 8.4 A 6.9 A 5.9 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 5.4 V - 13.2 V Input / 1.0 V - 5.0 V Output / 20 A Input Specifications (continued) Parameter Input Current (no load) VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=1.0 V Input Reflected Ripple Current (pk-pk) Input Reflected Ripple Current (rms) I t Inrush Current Transient Turn-on Voltage Threshold Turn-off Voltage Threshold 2 Min 4.35 V 3.65 V Typ 200 mA 150 mA 135 mA 120 mA 100 mA 85 mA 80 mA 130 mA 40 mA 0.1 A s 4.48 V 3.98 V 2 Max 200 mA 70 mA 0.2 A s 4.60 V 4.30 V 2 Notes With simulated impedance of 500 nH, 5 Hz to 20 MHz; use two 270 uF/16 V capacitors with ESR=0.018ohm max, at 100 kHz Note: All specifications are typical at Vin=8 V, full load at 25 C unless otherwise stated. Output Specifications Parameter Output Voltage Set Point VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=1.0 V Line Regulation VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=1.0 V Load Regulation VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=1.0 V Regulation Over Temperature (-40 C to +85 C) VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=1.0 V Min 4.900 V 3.234 V 2.450 V 1.764 V 1.470 V 1.176 V 0.980 V Typ 5.0 V 3.3 V 2.5 V 1.8 V 1.5 V 1.2 V 1.0 V 2 mV 1 mV 1 mV 1 mV 1 mV 1 mV 1 mV 3 mV 2 mV 2 mV 2 mV 1 mV 1 mV 1 mV 15 mV 10 mV 9 mV 8 mV 7 mV 5 mV 5 mV Max 5.100 V 3.366 V 2.550 V 1.836 V 1.530 V 1.224 V 1.020 V 4 mV 3 mV 3 mV 3 mV 3 mV 3 mV 3 mV 7 mV 4 mV 4 mV 4 mV 3 mV 3 mV 3 mV 30 mV 20 mV 18 mV 16 mV 14 mV 10 mV 10 mV Notes Test conditions: Vin=8 V; Iout=half load - 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 5.4 V - 13.2 V Input / 1.0 V - 5.0 V Output / 20 A Output Specifications (continued) Parameter Output Current Current Limit Threshold Short Circuit Surge Transient Ripple and Noise (rms) Ripple and Noise (rms) Ripple and Noise (pk-pk) Ripple and Noise (pk-pk) Turn on Time Overshoot at Turn on Output Capacitance Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO=1.0 V VO=1.2 V VO=1.5 V VO=1.8 V3.3 V VO=5 V 120 mV 50 uS 120 mV 50 uS 100 mV 50 uS 100 mV 50 uS 100 mV 40 uS 100 mV 40 uS 100 mV 40 uS 100 mV 50 uS 90 mV 40uS 90 mV 40 uS 200 mV 100 uS 200 mV 100 uS 150 mV 100 uS 150 mV 100 uS 150 mV 80 uS 150 mV 80 uS 150 mV 80 uS 150 mV 100 uS 130 mV 80 uS 130 mV 80 uS Test conditions: di/dt = 0.5 A/uS; Vin=8 V; with external 680 uF tantalum capacitor. 680 uF 1 1 1 1 Min 0A 24 A - Typ 0.075 A s 20 mV 10 mV 60 mV 30 mV 20 mS 0% 2 Max 20 A 40 A 0.15 A s 40 mV 20 mV 100 mV 60 mV 40 mS 3% 8000 uF 2 Notes With 1 uF ceramic capacitor at the output With 680 uF tantalum capacitor at the output With 1 uF ceramic capacitor at the output With 680 uF tantalum capacitor at the output Notes: All specifications are typical at full load at 25 C u nless otherwise stated. 1. Test conditions of the output ripple and noise: two 270 uF/16 V capacitors with ESR=0.018 ohm max at the input; Vin=8 V, Io=20 A; 0-20 MHz BW. 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 5.4 V - 13.2 V Input / 1.0 V - 5.0 V Output / 20 A General Specifications Parameter Efficiency VO=5.0 V VO=3.3 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=1.0 V 91% 89% 88% 85% 84% 82% 81% 480 kHz 108.5% 90%VO 94% 92% 91% 88% 87% 85% 84% 600 kHz 115% 3,154,461 hours Inches (L x W x H) Millimeters (L x W x H) Weight 1.22 x 0.827 x 0.345 30.99 x 21.0 x 8.76 11 g 720 kHz 120% 110%VO 10% Calculated Per Bell Core SR-332 (IO = 16 A, Vin=8 V, Vo=3.3 V; Ta = 25 C) Min Typ Max Notes Measured at Vin=8 V at full load. Switching Frequency Over Voltage Protection (Latch) Output Trim Range Remote Sense Compensation MTBF Dimensions Can be reset by cycling the input supply voltage or remote on/off. - Note: All specifications are typical at 25 C unless otherwise stated. Control Specifications Parameter Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Min 0V 2.5 V Typ Max 1V 13.2 V Notes Remote on/off pin open, unit 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. A Rtrim _ down = ( - B) K Vnom - Vadj Rtrim_ up = ( C - D) Vadj - Vnom Vout Rtrimdown Module Trim GND Vout Module Trim Rtrimup GND Vnom 5.0V 3.3V 2.5V 1.8V 1.5V 1.2V 1.0V A 30.955 3.961 1.834 1.927 1.353 0.099 0.102 B 15.805 3.407 3.397 6.916 5.851 0.446 0.684 C 5.884 1.266 0.861 1.533 1.533 0.196 0.401 D 8.450 1.825 2.320 5.000 3.935 0.201 0.183 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 5.4 V - 13.2 V Input / 1.0 V - 5.0 V Output / 20 A Efficiency Data Efficiency Curve Efficiency Curve 100.0% 96.0% Efficiency 92.0% 88.0% 84.0% 80.0% 76.0% 72.0% 2 4 6 8 10 12 14 16 18 20 Output Current (A) Efficiency 100.0% 96.0% 92.0% 88.0% 84.0% 80.0% 76.0% 72.0% 68.0% 2 4 6 8 10 12 14 16 18 20 Output Current (A) 8.0 V 10.8 V 13.2 V 5.8 V 8.0 V 13.2 V Vo=5.5 V Efficiency Curve Vo=3.3 V Efficiency Curve 98.0% 94.0% 90.0% Efficiency 86.0% 82.0% 78.0% 74.0% 70.0% 2 4 6 8 10 12 14 16 18 20 Output Current (A) 92.0% 5.4 V 8.0 V 13.2 V 88.0% Efficiency 84.0% 80.0% 76.0% 72.0% 68.0% 2 4 6 8 10 12 14 16 18 20 5.4 V 8.0 V 13.2 V Output Current (A) Vo=2.5 V Efficiency Curve Vo=1.8 V Efficiency Curve 94.0% 92.0% 90.0% 86.0% Efficiency 82.0% 78.0% 74.0% 70.0% 66.0% 2 4 6 8 10 12 14 16 18 20 5.4 V 8.0 V 13.2 V 88.0% 84.0% Efficiency 80.0% 76.0% 72.0% 68.0% 64.0% 2 4 6 8 10 12 14 16 18 20 Output Current (A) 5.4 V 8.0 V 13.2 V Output Current (A) Vo=1.5V Efficiency Curve Vo=1.2 V 92.0% 88.0% 84.0% Efficiency 80.0% 76.0% 72.0% 68.0% 64.0% 60.0% 2 4 6 8 10 12 14 16 18 20 Output Current (A) 5.4 V 8.0 V 13.2 V Vo=1.0 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 5.4 V - 13.2 V Input / 1.0 V - 5.0 V Output / 20 A Thermal Derating Curves SRDB-20E10H (Vin=8 V) SRDB-20E12H (Vin=8 V) SRDB-20E15H (Vin=8 V) SRDB-20E18H (Vin=8 V) SRDB-20E25H (Vin=8 V) SRDB-20E33H (Vin=8 V) SRDB-20E50H (Vin=8 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 5.4 V - 13.2 V Input / 1.0 V - 5.0 V Output / 20 A Mechanical Outline Pin Connections Pin 1 2 3 4 5 6 7 8 9 10 11 12 Function +Vo +Vo Ground Ground Ground +Vin +Vin Ground Ground Remote On/Off Trim Remote Sense (+) Note: Though there are 5 GND pins (3,4,5,8,9), it is highly recommended that all of them should be used in the system application, because of the current and the thermal conduction. 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. 111705 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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