Features ● ● ● ● ● ● ● ● ● Efficiency up to 97%,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 ~ 34V) Short circuit protection, Thermal shutdown Non standard outputs available as specials between 1.5V ~15V Low ripple and noise “L” version with 90° pins See Innoline Application Notes for use as an inverter (alternative to LM79xx Linear) INNOLINE DC/DC-Converter 1.0 AMP SIP3 Single Output Description The R-78Bxx-1.0 Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators and are pin compatible. The efficiency 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. 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 (1) (V) Output Voltage (V) Output Current (A) R-78B1.5-1.0 4.75 – 26 1.5 1.0 77 71 R-78B1.8-1.0 4.75 – 26 1.8 1.0 80 74 R-78B2.5-1.0 4.75 – 32 2.5 1.0 85 78 R-78B3.3-1.0 4.75 – 32 3.3 1.0 89 83 R-78B5.0-1.0 6.5 – 32 5.0 1.0 93 88 R-78B6.5-1.0 9.0 – 32 6.5 1.0 94 90 R-78B9.0-1.0 12 – 32 9.0 1.0 95 93 R-78B12-1.0 16 – 32 12 1.0 96 95 R-78B15-1.0 20 – 32 15 1.0 97 96 RoHS Efficiency Min. Vin Max. Vin (%) (%) 2002/95/EC 6/6 EN-55022 Certified EN-55024 Certified EN-60601-1-2 Certified EN-60950-1 Certified R-78B-1.0 Derating-Graph * add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.0L (Ambient Temperature) Typical Application Circuit +Vin 120 100 +Vout Output Power (%) R-78Bxx-1.0 C1 22µF (Vin>30V) -Vin -Vout 80 60 40 20 0 Safe Operating Area -40 0 25 50 Operating Temperature (°C) 85 75 100 71 To protect the converter during power-up, use C1=22µF if Vin>30V www.recom-international.com REV:0/2010 I-27 R-78Bxx-1.0 (L) Series INNOLINE DC/DC-Converter Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%) Characteristics Input Voltage Range Conditions 1.5V, 1.8V 2.5V to 15.5V Min. 4.75V 4.75V Typ. 25 32 Max. 26V abs. max. 34V abs. max. Output Voltage Range (for customized parts) All Series 1.5V 15.5V Output Current (see Note 1) All Series 0mA* 1000mA Output Current Limit All Series Short Circuit Input Current (Vin = 24V) All Series 2000mA 60mA Internal Power Dissipation 0.65W Short Circuit Protection Output Voltage Accuracy (At 100% Load) Line Voltage Regulation (Vin = min. to max. at full load) Continuous, automatic recovery Ripple & Noise (without Output Capacitor) (10% to 100% full load) All Series 1.5V to 6.5V 9V to 15.5V 1.5V to 6.5V 9V to 15.5V 100% <-> 50% load Transient Recovery Time 1.5V to 6.5V 9V to 15.5V Temperature Coefficient -40°C ~ +85°C ambient Load Regulation (10% to 100% full load) Dynamic Load Stability (with Output Capacitor=100µF) ±2% 0.2% 0.1% 0.4% 0.25% ±100mV 1.0ms 15mVp-p 25mVp-p ±3% 0.4% 0.2% 0.6% 0.4% ±150mV 1.5ms 20mVp-p 35mVp-p 0.015%/°C Max capacitance Load 220µF Switching Frequency 280kHz Quiescent Current Vin = min. to max. at 0% load Input Reflected Ripple Current All Series 380kHz 5mA 150mA Operating Temperature Range R-78B-1.0 330kHz 7mA 200mAp-p -40°C +85°C -55°C +125°C Operating Case Temperature +100°C Storage Temperature Range Case Thermal Impendance Thermal Shutdown 60°C / W Internal IC junction +160°C Relative Humidity 95% RH Thermal Shutdown Internal IC junction Case Material Epoxy with Non-Conductive Plastic Case (UL94V-0) Package Weight 4g Packing Quantity Conducted Emissions Radiated Emissions ESD EN55022 EN55022 EN61000-4-2 Safety Certification EN-60950-1 MTBF (+25°C) . (+71°C) +160°C } Detailed Information see Application Notes chapter "MTBF" 42 pcs per Tube Class B Class B Class A using MIL-HDBK 217F 6584 x 10³ hours using MIL-HDBK 217F 1139 x 10³ 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: 0/2010 www.recom-electronic.com R-78Bxx-1.0 (L) Series INNOLINE DC/DC-Converter Characteristics Ripple Efficiency 100 75 Vo=1.8V Vo=1.5V Vo=15V Vo=12V Vo=9V Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V 50 Vo=15V Vo=9V,12V Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.5V,1.8V 25 Ripple (mV) Efficiency (%) 50 25 34 20 10 10 Vin ( V ) Efficiency Vs Vin (Full Load) Ripple Vs Vin ( Full Load ) Vo=15V Vo=12V Vo=9V Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 100 75 50 Vo=15V Vo=9V, 12V Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.5V, 1.8V 25 Ripple (mV) Efficiency (%) 50 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=Max ) Ripple Vs Load ( Vin=Max ) 75 50 R-78B-1.0 Vo=15V Vo=12V Vo=9V, 6,5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 100 50 25 Vo=9V,12V,15V Vo=6.5V Vo=2.5V,3.3V,5V Vo=1.5V,1.8V Ripple (mV) Efficiency (%) 34 20 Vin ( V ) 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 ) 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 The diode can either be fitted across the device if the source is low impedance or fitted in series with the output (recommended). R-78xx-xx +Vin Vout= +Vout 0.3V R-78xx-xx Schottky Diode -Vin www.recom-international.com +Vout -Vout REV:0/2010 -Vin -Vout I-29 R-78Bxx-1.0 (L) Series INNOLINE DC/DC-Converter Application Examples High efficiency multiple output R-78B5.0-1.0 +Vin [email protected] RD-0512D +12V@84mA C1 C2 0V Com -12V@84mA -Vin C1: optional, C2: required (further decoupling filtering may be necessary - Wide input range 6.5V to 34V between the two converters) - +/-12V outputs for analogue circuits, e.g. instrumentation amplifier - +5V output for digital circuits 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-1.0 - 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) 3rd angle projection SIP3 PIN Package 8.50 8.50 17.5 RECOM R-78B5.0-1.0 **** Pb RECOM R-78B5.0-1.0 **** 0.51 typ. 1.50 max 0.7 typ. 4.10 Pb 4.10 L - Version Recommended Footprint Details 1.00 ø+0.15/0 11.50 Bottom View 0.25 3.21 I-30 2.54 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: 0/2010 www.recom-electronic.com