NON-ISOLATED DC/DC CONVERTERS 4.5 Vdc - 14 Vdc Input SRBC-16E2Ax 0.75 Vdc - 3.63 Vdc/16 A Output RoHS Compliant Rev.A • Non-Isolated • Under-voltage Lockout (UVLO) • High Efficiency • Over Temperature Protection • High Power Density • OCP/SCP • Excellent Thermal Performance • Wide Input • Low Cost • Wide Trim • Flexible Output Voltage Sequencing (option) • Remote On/Off • Active Low/High (option) • Able to Sink & Source Current • Remote Sense • Industrial Temperature Range Description The Bel SRBC-16E2Ax is part of the non-isolated dc/dc converter series. The modules use a SMT package. These converters are available in a range of output voltages from 0.75 Vdc to 3.63 Vdc over a wide range of input voltage (Vin = 4.5 Vdc - 14 Vdc). The Bel SRBC-16E2Ax has a sequencing feature that enables designers to implement various types of output voltage sequencing when powering. The efficiency is typically 92% at 3.3 Vdc output at full load. Part Selection Output Voltage Input Voltage Max. Output Current Max. Output Power Typical Efficiency Model Number Active Low Model Number Active High 0.75 V - 3.63 V 4.5 V - 14 V 16 A 58 W 92% SRBC-16E2AL SRBC-16E2A0 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 number to indicate Tray Packaging. Absolute Maximum Ratings Min Typ Max Input Voltage (continuous) Parameter -0.3 V - 15 V Output Enable Terminal Voltage -0.3 V - 15 V 1 -0.3 V - Vin Ambient Temperature -40 °C - 85 °C Storage Temperature -55 °C - 125 °C Sequencing Voltage Notes Notes: All specifications are typical at 25 °C unless otherwise stated. 1. SRBC-16E2Ax series of modules include a sequencing feature that enables users to implement various types of output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. When not using the sequencing feature, either, tie the SEQ pin to Vin or leave it unconnected. 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Input Specifications Parameter Min Typ Max Notes 4.5 V Vo,set +1.5 V - - 14 V 14 V 15 A Input Current (no load) - 100 mA - Remote Off Input Current - 2 mA - Input Reflected Ripple Current (pk-pk) - - 400 mA Input Reflected Ripple Current (rms) - - 150 mA - 0.2 A s Turn-on Voltage Threshold - 4.2 V - Turn-off Voltage Threshold 3.7 V - 4.2 V Input Voltage Vo,set < 3.0 V Vo,set ≥ 3.0 V Input Current (full load) 2 I t Inrush Current Transient 2 Tested with one 1000 uF/25 V AL input capacitor with ESR=0.03 ohm max and 6 × 47 uF/16 V tantalum capacitors with ESR=0.013 ohm max at 100 kHz, & simulated source impedance of 1000 nH, 5 Hz to 20 MHz. 2 0.4 A s Output Specifications Parameter Min Typ Max -2% Vo,set - 2% Vo,set Vin=12 V, full load Load Regulation - 0.1% Vo,set - Io=Iomin to Iomax Line Regulation - 0.1% Vo,set - Vin=Vinmin to Vinmax Regulation Over Temperature (-40 °C to +85 °C) - 0.3% Vo,set - Tref=Tamin to Tamax 0A - 16 A - 180% Io Output Voltage Set Point Output Current Current Limit Threshold - Short Circuit Surge Transient - 1A s 3A s Ripple and Noise (pk-pk) - 30 mV 75 mV Ripple and Noise (rms) - 12 mV 30 mV Turn on Time - 12 mS 20 mS Overshoot at Turn on - - 1% Vo,set Output Capacitance - - 5000 uF 2 Notes 2 Tested with 0-20 MHz, 10 uF tantalum capacitor & 1 uF TDK ceramic capacitor at the output Transient Response 50% ~ 100% Max Load Settling Time 100% ~ 50% Max Load Settling Time All - 150 mV - - 50 uS - - 150 mV - - 50 uS - di/dt=2.5 A/uS; Vin=12 V; and with 2 × 150 uF polymer capacitors 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 4.5 Vdc - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output General Specifications Parameter Min Typ Max Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.75 V - 92% 90% 88% 87% 85% 79% - Vo=3.3 V Vo=2.5 V Vo=1.8 V Vo=1.5 V Vo=1.2 V Vo=0.75 V - 92% 90% 87% 86% 83% 78% - 200 kHz 230 kHz 260 kHz - 130 °C - 0.7525 V - 3.63 V - - 0.5 V Efficiency Efficiency Switching Frequency Over Temperature Shutdown 1 Output Trim Range (Wide Trim) Remote Sense Compensation MTBF Notes Measured at Vin=12 V, full load Measured at Vin=5 V, full load Calculated Per Bell Core SR-332 (IO =80% Iomax; Vo=3.3 V; Vin=12 V; Ta = 25 °C) 2,666,488 hours Dimensions Inches (L × W × H) Millimeters (L × W × H) 1.30 x 0.53 x 0.315 33.02 x 13.46 x 8.00 Weight - 8g - Note: All specifications are typical at 25 °C unless otherwise stated. Control Specifications Parameter Min Typ Max Signal Low (Unit Off) -0.2 V - 0.3 V Signal High (Unit On) - - Vin, max Signal Low (Unit On) -0.2 V - 0.3 V Signal High (Unit Off) 2.5 V - Vin, max 25 mS - - - - 2 V/mS - 100 mV 200 mV 200 mV 400 mV Notes Remote On/Off SRBC-16E2A0; Remote On/Off pin open, Unit on. SRBC-16E2AL; Remote On/Off pin open, Unit on. Voltage Sequencing Sequencing Delay Time Sequencing Slew Rate Capability Tracking Accuracy Delay from Vinmin to application of voltage on SEQ pin Vinmin to Vinmax; Iomin to Iomax; Vseq<Vo Power-Up Power-Down 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Output Trim Equations Equation for calculating the trim resistor (in Ω) given the desired output voltage (Vo) is shown below. The Trim Up resistor should be connected between the Trim pin and Ground. Vout Rtrimup = 10500 − 1000 Vo − 0.7525 Sense Module trim Rtrim GND Equation for calculating the trim voltage (in V) given the desired output voltage (Vo) is shown below. The Trim Up voltage should be connected between the Trim pin and Ground. Vout Vtrimup = 0.7 − 0.0667 × (Vo − 0.7525) Sense Module trim Vtrim 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Efficiency Data MODULE 2.5V 100% 90% 5.0V 12.0V 80% EFFICIENCY EFFICIENCY MODULE 3.3V 100% 90% 5.0V 12.0V 80% 70% 60% 70% 1.6 4.0 8.0 12.0 1.6 16.0 4.0 MODULE 1.8V 16.0 MODULE 1.5V 100% 90% 5.0V 80% 12.0V 70% EFFICIENCY EFFICIENCY 12.0 OUTPUT CURRENT OUTPUT CURRENT 100% 90% 5.0V 80% 12.0V 70% 60% 60% 1.6 4.0 8.0 12.0 1.6 16.0 4.0 5.0V 12.0V 8.0 12.0 OUTPUT CURRENT 16.0 EFFICIENCY 100% 90% 80% 70% 60% 50% 4.0 12.0 16.0 MODULE 0.75V MODULE 1.2V 1.6 8.0 OUTPUT CURRENT OUTPUT CURRENT EFFICIENCY 8.0 100% 90% 80% 70% 60% 50% 5.0V 12.0V 1.6 4.0 8.0 12.0 16.0 OUTPUT CURRENT 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Thermal Derating Curves Vin=5 V, Vo=0.75 V Vin=12 V, Vo=0.75 V Vin=5 V, Vo=1.8 V Vin=12 V, Vo=1.8 V Vin=5 V, Vo=3.3 V Vin=12 V, Vo=3.3 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Ripple and Noise Waveforms Vin=5 V, Vo=0.7525 V Vin=5 V, Vo=1.2 V Vin=5 V, Vo=1.5 V Vin=12 V, Vo=0.7525 V Vin=12 V, Vo=1.2 V Vin=12 V, Vo=1.5 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Ripple and Noise Waveforms (continued) Vin=5 V, Vo=1.8 V Vin=12 V, Vo=1.8 V Vin=5 V, Vo=2.5 V Vin=12 V, Vo=2.5 V Vin=5 V, Vo=3.3 V Vin=12 V, Vo=3.3 V Note: Ripple and noise at full load, with 10uF tantalum capacitor and 1uF ceramic at the output, and Ta=25℃. 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Transient Response Waveforms 50% to 100% load Transient at Vin=5 V, Vo=0.75 V 100% to 50% load Transient at Vin=5 V, Vo=0.75 V 50% to 100% load Transient at Vin=5 V, Vo=1.2 V 100% to 50% load Transient at Vin=5 V, Vo=1.2 V 50% to 100% load Transient at Vin=5 V, Vo=1.5 V 100% to 50% load Transient at Vin=5 V, Vo=1.5 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Transient Response Waveforms (continued) 50% to 100% load Transient at Vin=5 V, Vo=1.8 V 100% to 50% load Transient at Vin=5 V, Vo=1.8 V 50% to 100% load Transient at Vin=5 V, Vo=2.5 V 100% to 50% load Transient at Vin=5 V, Vo=2.5 V 50% to 100% load Transient at Vin=5 V, Vo=3.3 V 100% to 50% load Transient at Vin=5 V, Vo=3.3 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Transient Response Waveforms (continued) 50% to 100% load Transient at Vin=12 V, Vo=0.75 V 100% to 50% load Transient at Vin=12 V, Vo=0.75 V 50% to 100% load Transient at Vin=12 V, Vo=1.2 V 100% to 50% load Transient at Vin=12 V, Vo=1.2 V 50% to 100% load Transient at Vin=12 V, Vo=1.5 V 100% to 50% load Transient at Vin=12 V, Vo=1.5 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Transient Response Waveforms (continued) 50% to 100% load Transient at Vin=12 V, Vo=1.8 V 100% to 50% load Transient at Vin=12 V, Vo=1.8 V 50% to 100% load Transient at Vin=12 V, Vo=2.5 V 100% to 50% load Transient at Vin=12 V, Vo=2.5 V 50% to 100% load Transient at Vin=12 V, Vo=3.3 V 100% to 50% load Transient at Vin=12 V, Vo=3.3 V Note: Transient response with external load capacitance Cext=2x150uF (Polymer capacitors), and Ta=25℃. 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 - 14 Vdc Input 0.75 Vdc - 3.63 Vdc/16 A Output Mechanical Outline Pin Connections RECOMMENDED PAD LAYOUT Pin Function 1 Remote On/Off 2 Vin 3 SEQ 4 Ground 5 Vout 6 Trim 7 Remote Sense PAD SIZE: MIN: 0.14"* 0.095" (3.56mm * 2.41mm) MAX: 0.165"* 0.11" (4.19mm * 2.79mm) 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. 011607 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