NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 13.8 Vdc Input VRAE-03E1A1 0.59 Vdc - 5.1 Vdc / 3 A Output RoHS Compliant Rev.B Non-Isolated Under-Voltage Lockout High Efficiency Wide Trim Fixed Frequency OCP/SCP Low Cost Remote On/Off Wide Input Description The Bel VRAE-03E1A1 is part of the non-isolated dc/dc converter Power Module series. The modules use a SIP package. These converters are available in a range of output voltages from 0.59 Vdc to 5.1 Vdc over a wide range of input voltage (VIN = 4.5 Vdc - 13.8 Vdc).The efficiency is typically 91% at 3.3 Vout (Vin=12 Vdc) at full load. Part Selection Output Voltage 0.59 V - 5.1 V Input Voltage 4.5 V - 13.8 V Max. Output Current 3A Max. Output Power 15 W Typical Efficiency 91% Model Number VRAE-03E1A1 Notes: 1. All part numbers above indicate RoHS 6. Change the second letter "R" to "7" for RoHS 5 part numbers. 2. Add “G” suffix at the end of the model numbers listed above to indicate “Tray Packaging”. Absolute Maximum Ratings Parameter Input Supply Voltage Ambient Temperature Min -0.3 V 0 C Typ - Storage Temperature Max 15 V 70 C -55 C - 125 C Notes Note: All specifications are typical at 25 C unless otherwise stated. Input Specifications Parameter Operating Input Voltage Vo,set≤3.63 V Vo,set﹥3.63 V Input Current (full load) Min Typ Max 4.5 V 7.0 V - 13.8 V 13.8 V - - TBD Input Current (no load) - 40 mA 100 mA Remote Off Input Current - 10 mA 25 mA Input Reflected Ripple Current (pk-pk) - 30 mA 50 mA Input Reflected Ripple Current (rms) - 10 mA 20 mA I t Inrush Current Transient - - 1As Turn on Voltage Threshold 4.15 V 4.3 V 4.45 V Turn off Voltage Threshold 3.7 V 4.1 V 4.3 V 2 Notes An input line fuse must always be used. With simulated source impedance of 1000 nH, 5 Hz to 20 MHz. Use a 1000 uF/25 V AL-Cap with ESR=0.03 ohm max and 2*100 Uf/25V Tan-Cap with ESR=0.013 ohm max at 100 kHz@25°C. 2 A 30.1K resistor is connected from Enable to Vin. 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 4.5 Vdc - 13.8 Vdc Input 0.59 Vdc - 5.1 Vdc / 3 A Output Output Specifications Parameter Min Typ Max -2%Vo,set - 2%Vo,set Load Regulation - ±0.2%Vo,set ±0.5%Vo,set Line Regulation - ±0.2%Vo,set ±0.5%Vo,set Temperature Regulation - 0.3%Vo,set - 0A - 3A 3.6 A 5A 7A Output Ripple and Noise (pk-pk) - 60 mV 100 mV Output Ripple and Noise (rms) - 20 mV 40 mV Short Circuit Surge Transient - - 2A s Turn on Time - 3 mS 5 mS Overshoot at Turn on - - 1% 0 uF - 1000 uF - 120 mV 200 mV - 20 uS 50 uS - 120 mV 200 mV - 20 uS 50 uS Output Voltage Set Point Output Current Output DC Current Limit Output Capacitance 2 Notes Vin= 12 V, lout=full load 0-20 MHz BW, with a 10 uF tantalum capacitor and 1 uF ceramic capacitor at the output. Vo≤20 mV, Hiccup Mode Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load VO =All Settling Time di/dt=0.25 A/uS; Vin=12 V; with a 10 uF tantalum capacitor and a 1 uF ceramic capacitor at the output. Note: All specifications are typical at normal input, full load at Ta= 25°C unless otherwise stated. General Specifications Parameter Min Typ Max 91% 89% 87% 84% 83% 80% 73% 93% 91% 89% 86% 85% 82% 75% - - 500 kHz - 0.591 V - 5.1 V Notes 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-0.9 V Switching Frequency Output Voltage Trim Range (Wide Trim) MTBF Vin=12 V Calculated Per Bell Core SR-332 (IO = 80% load; Vin=12 V; Vo=5 V; 0 LFM; Ta = 25 C) 7,579,849 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) Weight 0.65 x 0.41 x 0.32 16.51 x 10.41 x 8.13 - 2g - 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 4.5 Vdc - 13.8 Vdc Input 0.59 Vdc - 5.1 Vdc / 3 A Output Control Specifications Parameter Min Typ Max Signal Low (Unit Off) -0.3 V - 0.4 V Signal High (Unit On) 2.0 V - 5.5 V Notes Remote On/Off Remote On/Off Pin is open, the unit is off. Output Trim Equations Equation for calculating the trim resistor given the desired output voltage (Vo) is shown below. The Rtrim resistor should be connected between the trim pin and GND pin. Vout Rtrim 1.182 k Vo 0.591 Module Trim Rtrimup GND 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 4.5 Vdc - 13.8 Vdc Input 0.59 Vdc - 5.1 Vdc / 3 A Output Efficiency Data Efficiency vs. Vo=0.591 V Output Current at Room Temperature 0.9 EFFICIENCY (%) 0.8 0.7 0.6 0.5 4.5V 0.4 12.0V 13.8V 0.3 0.3 0.75 1.5 2.25 3 OUTPUT CURRENT (Amp) Efficiency vs. Vo=3.3 V Output Current at Room Temperature 1 EFFICIENCY (%) 0.95 0.9 0.85 0.8 0.75 0.7 4.5V 12.0V 0.65 13.8V 0.6 0.3 0.75 1.5 2.25 3 OUTPUT CURRENT (Amp) Efficiency vs. Vo=5.0 V Output Current at Room Temperature 1 EFFICIENCY (%) 0.95 0.9 0.85 0.8 0.75 7V 12.0V 0.7 13.8V 0.65 0.3 0.75 1.5 2.25 3 OUTPUT CURRENT (Amp) 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 4.5 Vdc - 13.8 Vdc Input 0.59 Vdc - 5.1 Vdc / 3 A Output Thermal Derating Curves Vin=12 V, Vout=5 V Vin=12 V, Vout=3.3 V Vin=12 V, Vout=2.5 V Vin=12 V, Vout=1.2 V Vin=12 V, Vout=0.59 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 4.5 Vdc - 13.8 Vdc Input 0.59 Vdc - 5.1 Vdc / 3 A Output Ripple and Noise Waveform 12 V input, 0.591 V output 12 V input, 3.3 V output 12 V input, 5.0 V output Note: Ripple and noise at full load, 0-20MHz BW, with a 10 uF tantalum cap and a 1 uF ceramic cap 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 4.5 Vdc - 13.8 Vdc Input 0.59 Vdc - 5.1 Vdc / 3 A Output Transient Response Waveforms 100% to 50% load step at 12 V input, 0.591 V output 50% to 100% load step at 12 V input, 0.591 V output 100% to 50% load step at 12 V input, 3.3 V output 50% to 100% load step at 12 V input, 3.3 V output 100% to 50% load step at 12 V input, 5.0 V output 50% to 100% load step at 12 V input, 5.0 V output Note: Transient response at di/dt=0.25 A/uS, with a 1uF ceramic cap and a 10 uF tantalum cap at the output, and 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 4.5 Vdc - 13.8 Vdc Input 0.59 Vdc - 5.1 Vdc / 3 A Output Mechanical Outline Pin Connections Pin Function 1 ENABLE 2 Vin 3 GND 4 Vout 5 Trim RoHS Compliance Complies with the European Directive 2002/95/EC, calling for the elimination of lead and other hazardous substances from electronic products. 2009 Bel Fuse Inc. Specifications subject to change without notice. 041509 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