v Features ● ● ● ● ● ● ● Efficiency up to 94%, no need for heatsinks! Pin-out compatible with LM78XX Linear Regs. Low profile (L*W*H=11.5*7.5*10.2mm) Wide input range (4.75V ~ 18V) Short circuit protection, thermal shutdown Non-standard outputs available as specials Low ripple and noise INNOLINE DC/DC-Converter with 3 year Warranty Description 1.0 AMP SIP3 Single Output The R-78xx-1.0 series switching regulators are ideally suited to replace 1 Amp 78xx linear regulators and are pin compatible. Efficiencies of up to 97% 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. Selection Guide Part Number SIP3 R-781.8-1.0 R-782.5-1.0 R-783.3-1.0 R-785.0-1.0 Input Range (V) 4.75 – 18 4.75 – 18 4.75 – 18 6.5 – 18 Output Voltage (V) 1.8 2.5 3.3 5.0 Output Current (A) 1.0 1.0 1.0 1.0 Efficiency Min. Vin Max. Vin (%) (%) 82 76 87 81 90 84 94 89 Specifications ( typical at 25°C, 10% minimum load, unless otherwise specified ) } I-12 REV: 0/2015 RoHS 2011/65/EU 6/6 EN-55022 Certified EN-55024 Certified IEC/EN-60950-1 Certified R-78-1.0 Derating-Graph (Ambient Temperature) 120 100 Output Power (%) Characteristics Conditions Min. Typ. Max. Input Voltage Range All Series 4.75V 18V Output Voltage Range All Series 1.5V 5.5V Output Current All Series 0mA* 1000mA Short Circuit Input Current (Vin =12V) All Series 100mA Internal Power Dissipation 0.4W Short Circuit Protection Continuous, automatic recovery Output Voltage Accuracy (At 100% Load) All Series ±2% ±3% Line Regulation (100% Load, Vin max.) All Series 0.2% 0.4% Load Regulation (10 to 100% full load) All Series 0.4% 0.6% Dynamic Load Stability 100% <-> 50% load ±85mV ±100mV Ripple & Noise (20Mhz BW) All Series 20mVp-p 30mVp-p Temperature Coefficient -40°C ~ +85°C ambient 0.015%/°C Max capacitance Load with normal start-up time, no external components 470µF with <1 second start up time + diode protection circuit 6800µF Switching Frequency 280kHz 350kHz 430kHz Quiescent Current Vin = min. to max. at 0% load 5mA 7mA Operating Temperature Range -40°C to +85°C Operating Case Temperature (with derating) +100°C Storage Temperature Range -55°C to +125°C Case Thermal Impedance 70°C/W Case Material Non-Conductive Black Plastic Potting Material Epoxy (UL94V-0) Conducted Emissions (with filter) EN55022 Class B Radiated Emissions (with filter) EN55022 Class B ESD EN61000-4-2 Class A Radiated Immunity EN61000-4-3 Class A Fast Transient EN61000-4-4 Class A Conducted Immunity EN61000-4-6 Class A Magnetic Field Immunity EN61000-4-8 Class A Certifications IEC/EN General Safety Report: SPCLVD 1407030-1 IEC/EN-60950-1, 2nd Edition EMC Report: 5A111502E EN 55022, EN55024, EN61000 Package Weight 1.9g Packing Quantity 42 pcs per Tube MTBF (+25°C) using MIL-HDBK 217F 13338 x 10³ hours. Detailed Information see (+71°C) Application Notes chapter "MTBF" using MIL-HDBK 217F 3880 x 10³ hours. 80 60 40 30 20 0 -40 Safe Operating Area 0 25 50 Operating Temperature (°C) 60 85 75 100 Refer to Application Notes www.recom-power.com R-78xx-1.0 Series INNOLINE DC/DC-Converter Characteristics Ripple Efficiency 100 50 Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V 75 Vo=5V 25 Vo=3.3V Vo=2.5V Vo=1.8V Ripple (mV) Efficiency (%) 50 25 5 15 10 18 5 Vin ( V ) Ripple Vs Vin ( Full Load ) 100 50 Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V 75 Vo=5V 25 25 0.2 0.4 0.6 0.8 1.0 0.2 1.2 0.4 0.6 0.8 1.0 R-78-1.0 Vo=3.3V Vo=2.5V Vo=1.8V Ripple (mV) 50 Efficiency (%) 18 Vin ( V ) Efficiency Vs Vin (Full Load) 1.2 Output Current ( A ) Output Current ( A ) Ripple Vs Load ( Vin=Max ) Efficiency Vs Load ( Vin=Max ) 100 50 Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V 75 50 25 Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Ripple (mV) Efficiency (%) 15 10 25 0.2 0.4 0.6 0.8 1.0 1.2 0.2 Output Current ( A ) 0.4 0.6 0.8 1.0 1.2 Output Current ( A ) Efficiency Vs Load ( Vin=Min ) Ripple Vs Load ( Vin=Min ) *Note: Operation under no load will not damage these devices, however they may not meet all specifications. A minimum load of 10mA is recommended www.recom-power.com REV: 0/2015 I-13 R-78xx-1.0 Series INNOLINE DC/DC-Converter Optional Protection Circuit 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 Optional Protection 2: +Vin +Vout R-78xx-xx Vout= +Vout 0.3V R-78xx-xx 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 -Vin -Vout -Vout Application Examples High efficiency, isolated, dual regulated outputs REC3-0515DRW/H4 +15VDC R-785.0-1.0 +Vin Com C1 -15VDC C2 - Medical Grade Isolated Dual Outputs -Vin C1: Optional , C2 : Required (further decoupling filtering may be necessary between the two converters) - Wide input range 6.5V to 18V - High Efficiency, Suitable for 12V Battery Powered Devices Isolated (up to 6KV), wide Input range regulated output DC/DC Converter ( 1:1 ) R-78-1.0 +Vin R-78xx-1.0 +Vout C1 -Vin C2 - High isolation voltage - Improved loading / line regulation - Wide Input Voltage Range - Point-of-Load Architecture -Vout C1 , C2 : optional Package Style and Pinning (mm) SIP3 PIN Package 7.55 10.2 RECOM R-785.0-1.0 0.51 typ. **** Pb Front 1 2 3 0.7 ±0.1 4.10 Recommended Footprint Details 1.00 ø+0.15/0 11.50 0.25 Bottom View 3.21 5.08 RECOM R-785.0-1.0 **** Pb 2.54 2.0 Top View 2.54 Pin Connections Pin # 1 2 3 xx.x ±0.5mm xx.xx ±0.25mm +Vin GND +Vout 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-14 REV: 0/2015 www.recom-power.com