● Features ● ● ● ● ● ● ● INNOLINE 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 DC/DC-Converter with year Warranty 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 this versatile converter series. Selection Guide Part Number* SIP3 Input Range (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 RoHS 2011/65/EU 6/6 EN-55022 Certified EN-55024 Certified IEC/EN-60950-1 Certified * add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.5L R-78B-1.5 Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10 %) Characteristics Conditions Min. Typ. Input Voltage Range All Series, see Selection Guide 4.75V 18.0V Output Voltage Range (for customized parts) All Series 1.5V 6.5V Output Current All Series 0mA* 1500mA Short Circuit Input Current (Vin = 12V) All Series Internal Power Dissipation Output Voltage Accuracy (At 100% Load) 100mA Derating-Graph 0.65W (Ambient Temperature) Continuous, automatic recovery All Series ±2% ±3% Line Voltage Regulation (Vin = min. to max. at full load) All Series 0.3% 0.5% Load Regulation (10% to 100% full load) 0.6% 0.8% All Series Dynamic Load Stability (with Output Capacitor=100µF) 100% <-> 50% load Transient Recovery Time ±80mV 1.0ms ±120mV 1.5ms Ripple & Noise (10% to 100% full load) All Series 15mV Temperature Coefficient -40°C ~ +85°C ambient Max capacitance Load with normal start-up time, no external components 30mVp-p 0.015%/°C 1000µF 120 100 Output Power (%) Short Circuit Protection Max. 80 60 40 20 0 Safe Operating Area -40 0 25 50 Operating Temperature (°C) 85 75 100 71 with <1 second start up time + diode protection circuit 6800µF Switching Frequency 300kHz 340kHz 380kHz continued on next page Refer to Application Notes www.recom-power.com REV: 0/2015 I-25 R-78Bxx-1.5 (L) Series INNOLINE DC/DC-Converter Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10 %) Characteristics Conditions Min. Quiescent Current Vin = min. to max. at 0% load Input Reflected Ripple Current All Series Typ. Max. 7mA 9mA 150mA Operating Temperature Range 200mAp-p -40°C +85°C Operating Case Temperature +100°C Storage Temperature Range -55°C +125°C Case Thermal Impedance 60°C / W Relative Humidity 95% RH Case Material Epoxy with Non-Conductive Plastic Case (UL94V-0) Package Weight 4g Packing Quantity 42 pcs per Tube Conducted Emissions EN55022 Class B Radiated Emissions EN55022 Class B ESD IEC/EN General Safety EN61000-4-2 Report: SPCLVD 1407030-1 MTBF (+25°C) using MIL-HDBK 217F 3250 x 10³ hours using MIL-HDBK 217F 1059 x 10³ hours (+71°C) } Detailed Information see Application Notes chapter "MTBF" Class A IEC/EN-60950-1, 2nd Edition *Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 10mA is recommended Typical Application Circuit +Vin +Vout R-78B-1.5 R-78Bxx-1.5 -Vin -Vout 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 25 5 10 15 5 18 10 15 18 Vin ( V ) Vin ( V ) Ripple Vs Vin (Full Load) Efficiency Vs Vin (Full Load) I-26 Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 25 REV: 0/2015 www.recom-power.com R-78Bxx-1.5 (L) Series INNOLINE DC/DC-Converter Characteristics Ripple Efficiency Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 100 75 50 Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 25 Ripple (mV) Efficiency (%) 50 25 0.5 1.0 1.5 0.5 Output Current ( A ) 1.5 Output Current ( A ) Efficiency Vs Load ( Vin=Max ) Ripple Vs Load ( Vin=Max ) 100 50 Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 75 50 25 Vo=6.5V Vo=5V Vo=2.5,V, 3.3V Vo=1.5V, 1.8V Ripple (mV) 25 0.5 1.0 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-power.com Vout= +Vout 0.3V R-78xx-xx -Vout REV: 0/2015 -Vin -Vout I-27 R-78B-1.5 Efficiency (%) 1.0 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 22µF 0V Isolated Common -15V@66mA -Vin - 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 +5V Rtn Isolated, wide Input range, Distributed Power Architecture (Point of Load) RP10-4812SEW [email protected] +Vin R-78B5.0-1.0 C1 -Vin +5V@1A 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-78B3.3-1.0 +3.3V@1A C3 0V Package Style and Pinning (mm) SIP3 PIN Package 17.5 RECOM R-78B5.0-1.5 **** Pb 8.50 8.50 Front View 0.51 typ. Front View Pb 4.10 1.50 max 0.7 ±1.0 4.10 L - Version Recommended Footprint Details 1.00 ø+0.15/0 11.50 2.54 Bottom View 0.25 3.21 5.08 2.0 RECOM R-78B5.0-1.5 **** Top View 1 2 3 Pin Connections Pin # 1 +Vin 2 GND 3 +Vout xx.x ±0.5mm xx.xx ±0.25mm 2.54 The product information and specifications are subject to change without prior notice. RECOM products are not authorized for use in safety-critical applications (such as life support) without RECOM’s explicit written consent. A safety-critical application is defined as an application where a failure of a RECOM product may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The buyer shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications. I-28 REV: 0/2015 www.recom-power.com