NON-ISOLATED DC/DC CONVERTERS 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/15 A Output VRPB-15C Series • • • • • • • RoHS Compliant • • • • • • Non-Isolated High Efficiency High Power Density Fixed Frequency (300 kHz) Low Cost Remote On/Off Industry Standard Footprint Rev.A Over Temperature Protection Under-voltage Lockout (UVLO) OCP/SCP Industrial Temperature Range Remote Sense Active Low/High (Option) Description The Bel VRPB-15Cxxx is part of the low cost non-isolated dc/dc converter series. The modules use a SIP package for ease of layout and space savings. The output is closely regulated and the efficiency is typically 93% at 2.5 Vdc output at full load. Typical features include remote on/off, under-voltage lockout, over-current protection and short circuit protection. Part Selection Output Voltage 2.5 Vdc 1.8 Vdc 1.5 Vdc 1.2 Vdc 0.9 Vdc Input Voltage 3.3 Vdc 3.3 Vdc 3.3 Vdc 3.3 Vdc 3.3 Vdc Max. Output Current 15 A 15 A 15 A 15 A 15 A Max. Output Power 37.5 W 27.0 W 22.5 W 18.0 W 13.5 W Typical Efficiency 93% 90% 89% 86% 83% Model Number Active Low VRPB-15C25L VRPB-15C18L VRPB-15C15L VRPB-15C12L VRPB-15C09L Model Number Active High VRPB-15C25S VRPB-15C18S VRPB-15C15S VRPB-15C12S VRPB-15C09S Notes: 1. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. 2. 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 -0.3 V -0.3 V -40 °C -55 °C Typ - Max 4V 6V 85 °C 125 °C Notes Notes Input Specifications Parameter Input Voltage Input Current (full load) Min 3V Typ 3.3 V Max 3.6 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V - - 15 A 11.5 A 9.5 A 8A 6A Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V - 120 mA 140 mA 160 mA 170 mA 180 mA 200 mA 200 mA 200 mA 200 mA 200 mA Input Current (no 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 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/15 A Output Input Specifications (continued) Parameter Remote Off Input Current Min Typ Max Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V Input Reflected Ripple Current (pk-pk) Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V Input Reflected Ripple Current (rms) Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V 2 I t Inrush Current Transient Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V Turn-on Voltage Threshold - 12 mA 12 mA 17 mA 15 mA 15 mA 20 mA 20 mA 20 mA 20 mA 20 mA - 80 mA 110 mA 130 mA 100 mA 85 mA 120 mA 160 mA 180 mA 150 mA 135 mA - 25 mA 30 mA 40 mA 30 mA 25 mA 40 mA 50 mA 60 mA 50 mA 40 mA - 0.02 A s 2 0.015 A s 2 0.01 A s 2 0.008 A s 2 0.008 A s 2.8 V 0.04 A s 2 0.03 A s 2 0.02 A s 2 0.016 A s 2 0.016 A s - Turn-off Voltage Threshold - 2.5 V - 2 Notes Tested with simulated source impedance of 500nH and two 270uF/16V (P/N: 16SP270M SANYO) Oscon Capacitors at the input 2 Output Specifications Parameter Output Voltage Set Point Min Typ Max VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V 2.450 V 1.764 V 1.470 V 1.176 V 0.882 V 2.5 V 1.8 V 1.5 V 1.2 V 0.9 V 2.550 V 1.836 V 1.530 V 1.224 V 0.918 V VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V - 6 mV 5 mV 4 mV 3 mV 3 mV 12.5 mV 9.0 mV 7.5 mV 6.0 mV 6.0 mV VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V - 4 mV 3 mV 3 mV 2 mV 2 mV 7.5 mV 5.5 mV 4.5 mV 4.0 mV 4.0 mV VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V - 30 mV 20 mV 15 mV 15 mV 10 mV 50 mV 40 mV 30 mV 25 mV 20 mV Notes Test condition: Vin=3.3 V, lout=full load Load Regulation Line Regulation Regulation Over Temperature (-40°C to +85 °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 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/15 A Output Output Specifications (continued) Parameter Output Current Current Limit Threshold Short Circuit Surge Transient Min 0A Typ - Max 15 A 18 A - 35 A - 2 0.2 A s 0.4 A2s Turn on Time - 6 mS 10 mS Overshoot at Turn on - 0% 3% Output Capacitance - - 6800 uF Output Ripple and Noise (pk-pk) VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V - 20 mV 25 mV 30 mV 25 mV 20 mV 50 mV 50 mV 60 mV 50 mV 50 mV - 5 mV 7 mV 8 mV 6 mV 5 mV 10 mV 10 mV 12 mV 10 mV 10 mV - 110 mV 150 mV Output Ripple and Noise (rms) VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V Notes Test conditions: 0-20 MHz BW; 0.1 uF ceramic capacitor and 10 uF aluminum capacitor at the output Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load VO=2.5 V Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load VO=1.8 V Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load VO=1.5 V Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load VO=1.2 V Settling Time 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time VO=0.9 V - 40 uS 80 uS - 110 mV 150 mV - 40 uS 80 uS - 100 mV 130 mV - 40 uS 80 uS - 100 mV 130 mV - 40 uS 80 uS - 100 mV 130 mV - 40 uS 80 uS - 100 mV 130 mV - 40 uS 80 uS 90 mV 120 mV - 40 uS 80 uS - 90 mV 120 mV - 40 uS 80 uS - 90 mV 120 mV - 40 uS 80 uS - 90 mV 120 mV - 40 uS 80 uS Test conditions: di/dt = 0.5 A/uS; Vin = 3.3 V; and with two 220 uF Tantalum capacitor at the output Note: All specifications are typical 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 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/15 A Output General Specifications Parameter Min Typ Max Notes 91% 88% 87% 84% 80% 250 kHz 93% 90% 89% 86% 83% 300 kHz 340 kHz 90% VO 90% VO - 105% VO 110% VO - - 5% VO 10% VO Efficiency VO=2.5 V VO=1.8 V VO=1.5 V VO=1.2 V VO=0.9 V Switching Frequency Output Voltage Trim Range Vo=2.5 V Vo=0.9 V-1.8 V Remote Sense Compensation VO=2.5 V VO=0.9 V-1.8 V MTBF Measured at Vin=3.3 V, full load. The total output adjust range will not be higher than 105% Vo for 2.5 V module, and 110% Vo for other modules. Calculated Per Bell Core SR-332 (Vin=3.3 V, IO = 12 A; Ta = 25 °C) 4,163,010 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight - 2.0 x 0.55 x 0.387 50.8 x 13.97 x 9.84 9.2 g - Note: All specifications are typical at 25 °C unless otherwise stated. Control Specifications Parameter Min Typ Max -0.3 V 2.5 V -0.3 V 2.5 V - 0.8 V 5.5 V 0.8 V 5.5 V Notes Remote On/Off Signal Low (Unit Off) Signal High (Unit On) Signal Low (Unit On) Signal High (Unit Off) VRPB-15CxxS VRPB-15CxxL 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. Vout Rtrim _ down = A(Vadj − 0.8) Vnom − Vadj Sense Module −B Rtrim_down trim GND Vout Rtrim _ up Vnom 2.5 V 1.8 V 1.5 V 1.2 V 0.9 V Sense C = −D Vadj − Vnom A 2.370 2.370 2.370 2.490 1.050 Module trim Rtrim_up GND B 4.990 4.990 4.990 2.370 0.010 C 1.896 1.896 1.896 1.992 0.840 D 4.990 4.990 4.990 2.370 0.010 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 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/15 A Output Efficiency Data Model 1.8V Model 2.5V 97.0% 95.0% 93.0% 91.0% 93.0% Efficiency Efficiency 95.0% 91.0% 89.0% 87.0% 85.0% 89.0% 83.0% 87.0% 81.0% 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 1.0 2.0 3.0 4.0 5.0 6.0 Output Current 3.0V 3.3V 3.6V 9.0 10.0 11.0 12.0 13.0 14.0 15.0 3.0V 3.3V 3.6V Model 1.2V Efficiency 92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 78.0% 76.0% 74.0% 92.0% 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 78.0% 76.0% 74.0% 72.0% 70.0% t 1.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 2.0 3.0 4.0 5.0 6.0 Output Current 3.3V 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 Output Current 3.6V 3.0V 3.3V 3.6V Model 0.9V Efficiency Efficiency 8.0 Output Current Model 1.5V 3.0V 7.0 90.0% 88.0% 86.0% 84.0% 82.0% 80.0% 78.0% 76.0% 74.0% 72.0% 70.0% 68.0% 66.0% 64.0% 62.0% 60.0% 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 Output Current 3.0V 3.3V 3.6V 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 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/15 A Output Thermal Derating Curve VRPB-15Cxxx Transient Response Waveforms Vout=2.5 V 100% to 50% Load Transients Vout=2.5 V 50% to 100% Load Transients Vout=1.8 V 100% to 50% Load Transients Vout=1.8 V 50% to 100% Load Transients 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 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/15 A Output Transient Response Waveforms (continued) Vout=1.5 V 100% to 50% Load Transients Vout=1.5 V 50% to 100% Load Transients Vout=1.2 V 100% to 50% Load Transients Vout=1.2 V 50% to 100% Load Transients Vout=0.9 V 100% to 50% Load Transients Vout=0.9 V 50% to 100% Load Transients Note: Transient response at di/dt=0.5 A/us, Vin=3.3 Vdc, Ta=25 °C, with two 220 uF tantalum caps at output. 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 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/15 A Output Ripple and Noise Waveforms Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.9 V Note: Ripple and noise max load 3.3 V input, 0-20 MHz BW, with 0.1 uF ceramic capacitor and 10 uF aluminum capacitor at the output, Ta=25 deg 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 3.3 Vdc Input 0.9 Vdc - 2.5 Vdc/15 A Output Mechanical Outline Pin Connections Pin Function 1 Vo+ 2 Vo+ 3 Opt. Remote Sense (+) 4 Vo+ 5 Ground 6 Ground 7 Vin+ 8 Vin+ 9 Not used 10 Trim 11 Remote On/Off RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. ©2007 Bel Fuse Inc. Specifications subject to change without notice. 011907 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