Features Efficiency up to 95%,Non isolated, no need for heatsinks Pin-out compatible with LM78XX Linears Low profile( L*W*H=11.5*8.5*17.5mm) Wide input range.(4.75V ~ 18V) Short circuit protection, Thermal shutdown Non standard outputs available as specials between 1.5V ~ 6.5V Low ripple and noise "L" Version with 90 pins INNOLINE DC/DC-Converter 1.5 AMP SIP3 Single Output Description The R-78Bxx-1.5 Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency of up to 95% means that very little energy is wasted as heat so there is no need for any heat sinks with their additional space and mounting costs. The L-Version with 90 pins allows direct replacement for laid-flat regulators where component height is at a premium.Low ripple and noise figures and a short circuit input current of typically only 10mA round off the specifications of thisversatile converter series. Selection Guide Part Number* SIP3 Input Range (1) (V) Output Voltage (V) Output Current (A) Efficiency Min. Vin Max. Vin (%) (%) R-78B1.5-1.5 4.75 - 18 1.5 1.5 83 78 R-78B1.8-1.5 4.75 - 18 1.8 1.5 85 81 R-78B2.5-1.5 4.75 - 18 2.5 1.5 88 84 R-78B3.3-1.5 4.75 - 18 3.3 1.5 91 88 R-78B5.0-1.5 6.5 - 18 5.0 1.5 94 92 R-78B6.5-1.5 8.0 - 18 6.5 1.5 95 93 * add Suffix "L" for 90 bent pins, e.g. R-78B5.0-1.5L EN-55022 Certified EN-55024 Certified EN-60601-1-2 Certified EN-60950-1 Certified R-78B-1.5 Derating-Graph Typical Application Circuit (Ambient Temperature) +Vout R-78Bxx-1.5 120 100 Output Power (%) +Vin -Vin -Vout 80 60 40 20 0 Safe Operating Area -40 0 25 50 Operating Temperature (C) www.recom-international.com REV:1/2009 85 75 100 71 I-27 R-78Bxx-1.5 (L) Series INNOLINE DC/DC-Converter Specifications (refer to the standard application circuit, Ta: 25C, minimum load = 10 %) Characteristics Input Voltage Range Conditions All Series, see Selection Guide Min. 4.75 Typ. Max. 18.0V Output Voltage Range (for customized parts) All Series 1.5 6.5V Output Current All Series 0* 1500mA Output Current Limit All Series 5000mA Short Circuit Input Current (Vin = 12V) All Series 100mA Internal Power Dissipation 0.65W Short Circuit Protection Continuous, automatic recovery Output Voltage Accuracy (At 100% Load) Line Voltage Regulation (Vin = min. to max. at full load) Load Regulation (10% to 100% full load) Dynamic Load Stability (with Output Capacitor=100F) All Series All Series All Series 100% <-> 50% load Transient Recovery Time Ripple & Noise (10% to 100% full load) All Series Temperature Coefficient -40C ~ +85C ambient 2 0.2 0.4 80 1.0 3% 0.4% 0.6% 120mV 1.5ms 15 30mVp-p 0.015%/C Max capacitance Load 1000F Switching Frequency 300 Quiescent Current Vin = min. to max. at 0% load Input Reflected Ripple Current All Series 340 7 150 Operating Temperature Range 380kHz 9mA 200mAp-p -40C +85C Operating Case Temperature +100C Storage Temperature Range -55C +125C R-78B-1.5 Case Thermal Impendance Thermal Shutdown 60C / W Internal IC junction +160C Relative Humidity 95% RH Case Material Epoxy with Non-Conductive Plastic Case (UL94V-0) Package Weight 4g Conducted Emissions EN55022 Class B Radiated Emissions EN55022 Class B ESD EN61000-4-2 Class A Safety Certification EN-60950-1 MTBF (+25C) (+71C) } Detailed Information see Application Notes chapter "MTBF" using MIL-HDBK 217F 3250 x 10 hours using MIL-HDBK 217F 1059 x 10 hours *Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 10mA is recommended I-28 REV: 1/2009 www.recom-electronic.com R-78Bxx-1.5 (L) Series INNOLINE DC/DC-Converter Characteristics Ripple Efficiency 75 Efficiency (%) 50 50 Ripple (mV) Vo=6.5V Vo=5V Vo=3.3V Vo=1.8V Vo=2.5V Vo=1.5V 100 Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 25 25 5 10 15 18 Ripple Vs Vin (Full Load) Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 100 75 50 50 Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 25 25 Ripple (mV) Efficiency (%) 15 Vin ( V ) Efficiency Vs Vin (Full Load) 1.0 0.5 1.5 0.5 Output Current ( A ) 1.0 1.5 Output Current ( A ) Efficiency Vs Load ( Vin=Max ) Ripple Vs Load ( Vin=Max ) 50 Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 75 R-78B-1.5 100 50 25 Vo=6.5V Vo=5V Vo=2.5,V, 3.3V Vo=1.5V, 1.8V Ripple (mV) Efficiency (%) 10 5 18 Vin ( V ) 25 1.0 0.5 1.5 0.5 Output Current ( A ) 1.0 1.5 Output Current ( A ) Efficiency Vs Load ( Vin=Min ) Ripple Vs Load ( Vin=Min ) Optional Protection Circuit Optional Protection 2: Optional Protection 1: Add a blocking diode to Vout if current can flow backwards into the output, as this can damage the converter when it is powered down. +Vin R-78xx-xx +Vout +Vin The diode can either be fitted across the device if the source is low impedance or fitted in series with the output (recommended). Schottky Diode -Vin www.recom-international.com Vout= +Vout 0.3V R-78xx-xx -Vout REV:1/2009 -Vin -Vout I-29 R-78Bxx-1.5 (L) Series INNOLINE DC/DC-Converter Application Examples High efficiency multiple output R-78B5.0-1.5 +Vin +5V@1A R05P215D/P +15V@66mA 22F 0V Isolated Common -15V@66mA -Vin +5V Rtn - Wide input range suits both 12V and 7.2V battery packs - 5.2kV isolated short circuit protected outputs for analogue circuits, e.g. medical grade interface - High efficiency +5V/1A protected output for digital circuits - Further decoupling filtering may be necessary between the converters Isolated, wide Input range, Distributed Power Architecture (Point of Load) RP10-4805SE +5V@0.25A +Vin R-78B3.3-1.5 C1 -Vin +3.3V@1.5A C2 R-78B-1.5 - High isolation voltage - 1.6kV - Improved loading / line regulation - Wide Input Voltage Range - 18~75V - Point-of-Load Architecture - C1 is required. Further decoupling filtering may be necessary between the converters C2,C3 : optional R-78B1.8-1.5 +1.8V@1.5A C3 0V Package Style and Pinning (mm) 3rd angle projection SIP3 PIN Package 8.50 8.50 17.5 RECOM R-78B5.0-1.5 **** Pb RECOM R-78B5.0-1.5 **** 0.51 typ. 1.50 max 0.7 typ. 4.10 Pb 4.10 L - Version Recommended Footprint Details 1.00 o+0.15/0 11.50 0.25 3.21 I-30 2.54 Bottom View 5.08 2.0 Top View 1 2 3 Pin Connections Pin # 1 +Vin 2 GND 3 +Vout xx.x 0.5mm xx.xx 0.25mm 2.54 REV: 1/2009 www.recom-electronic.com