Efficiency up to 95%,Non isolated, INNOLINE Features Very low profile 4mm DC/DC-Converter Wide input range.(4.75V ~ 36V) Short circuit protection, Thermal shutdown Non standard outputs available as specials Low ripple and noise EMC Compliant See Innoline Application Notes for use as an inverter (alternative to LM79xx Linear) 0.5 AMP SMD Description Single Output The ROF-78xx-0.5SMD high efficiency switching regulators are ideally suited to replace SMD linear regulators. The effi- ciency of up to 95% means that very little energy is wasted as heat so full power operation over the full industrial am- bient temperature range of -40C to +85C is possible. Low ripple and noise figures and short circuit , overload and over-temperature protection round off the specifications of this versatile converter series.This ROF-78xx-0.5SMD is compliant to EN 55022 CISPR 22 Class B (Emissions) with a simple external filter, EN 61000-6-1 and EN 61000-6-2 Crit A (Radiated Susceptability), EN 61000-4-2 Crit B (Electrostatic Discharge 4kV). Selection Guide Part Input Output Output Efficiency Number Range Voltage Current Min. Vin Max. Vin RoHS SIP3 (V) (V) (A) (%) (%) 2002/95/EC 6/6 *ROF-781.8-0.5SMD 4.75 34 1.8 0.5 82 68 EN-55022 Compliant *ROF-783.3-0.5SMD 4.75 34 3.3 0.5 92 79 EN-61000-6-1 Compliant ROF-785.0-0.5SMD 6.5 36 5.0 0.5 95 86 EN-61000-6-2 Compliant * pending EN-61000-4-2 Compliant Standard Application Circuit ROF-78xx * Input capacitor required if Vin>26VDC (3.3F) or if -0.5SMD the supply is a battery or other low impedance source (4.7F~10F) Derating-Graph Capacitor should be elec- (Ambient Temperature) trolytic or MLCC with 1R resistor in series Optional Protection Circuit Add a blocking diode to Vout if current can flow backwards into the out- put, as this can damage the converter when it is powered down. The diode can either be fitted across the device if the source is low impe- dance or fitted in series with the output (recom- mended). REV: 3/2011 www.recom-electronic.com 1ROF-78xx -0.5SMD INNOLINE DC/DC-Converter ROF-78xx-0.5SMD Specifications ( typical at 25C, 10% minimum load, unless otherwise specified ) Characteristics Conditions Min. Typ. Max. Input Voltage Range 1.8V, 3.3V 4.75 12/24V 36V abs. max. 5.0V 6.5 12/24V 36V abs. max. Output Voltage Range (for customized parts) All Series 1.75 5.25V Output Current (see note) 0* 500mA Output Current Limit 1500mA Short Circuit Input Current (Typical Vin) 60mA Internal Power Dissipation All series 0.5W Short Circuit Protection Continuous, automatic recovery Output Voltage Accuracy (At 100% Load) 2 3% Line Voltage Regulation (Vin - min. to max. at full load) All series 0.2 0.4% Load Regulation (10 to 100% full load) All series 0.4 0.6% Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 6mA is recommended Dynamic Load Stability 100% <-> 50% load 75mV 100% <-> 10% load 100mV Ripple & Noise (without Output Capacitor) All series 50mVp-p Max capacitance Load (with blocking diodes and 1sec start up time) 6800F Switching Frequency 500kHz Quiescent Current Vin = min. to max. at 0% load 5 7mA ON/OFF Remote Control Pin Drive Current ON: Open or 1.55V<Vr<5V OFF: GND or 0<Vr<0.9V Ir=1.3A Start-up Time All series 3.2 5.0msec. Operating Temperature Range -40C +90C Storage Temperature Range -55C +125C Thermal Shutdown Internal IC junction +182C Conducted Emissions EN55022 Class B with Filter Radiated Emissions EN55022 Class B with Filter Radiated Susceptibility EN61000-6-1 Class A EN61000-6-2 Class A ESD EN61000-4-2 Class B Package Weight 0.9g Packing Quantity 50pcs per Tray *tape and reel packaging available upon request Tray Dimension 281.2mm X 157.60mm MTBF (+25C) using MIL-HDBK 217F 19048 x 10 hours *Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 6mA is recommended Class B Conducted/ Radiated Emissions Filter Suggestion www.recom-international.com REV: 3/2011 2 Detailed Information see Application Notes chapterMTB