● 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 with 3 year Warranty 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 (V) Output Voltage (V) Output Current (A) Efficiency Min. Vin Max. Vin (%) (%) 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 2011/65/EU 6/6 EN-55022 Certified EN-55024 Certified EN-60601-1-2 Certified IEC/EN-60950-1 Certified R-78B-1.0 * add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.0L Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%) 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 Short Circuit Input Current (Vin = 24V) All Series 120 100 0.65W Short Circuit Protection Continuous, automatic recovery Output Voltage Accuracy (At 100% Load) All Series Line Voltage Regulation (Vin = min. to max. at full load) 1.5V to 6.5V 9V to 15.5V Load Regulation (10% to 100% full load) 1.5V to 6.5V 9V to 15.5V Dynamic Load Stability (with Output Capacitor=100µF) 100% <-> 50% load Transient Recovery Time Ripple & Noise (without Output Capacitor) 1.5V to 6.5V (10% to 100% full load) 9V to 15.5V ±2% 0.2% 0.1% 0.4% 0.25% ±100mV 1.0ms 15mVp-p 25mVp-p -40°C ~ +85°C ambient ±3% 0.4% 0.2% 0.6% 0.4% ±150mV 1.5ms 20mVp-p 35mVp-p 80 60 40 20 0 Safe Operating Area -40 0 25 50 Operating Temperature (°C) 85 75 100 71 0.015%/°C continued on next page www.recom-power.com (Ambient Temperature) 60mA Internal Power Dissipation Temperature Coefficient Derating-Graph Output Power (%) Characteristics Input Voltage Range REV: 0/2015 Refer to Application Notes I-21 R-78Bxx-1.0 (L) Series INNOLINE DC/DC-Converter Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%) Characteristics Max capacitance Load Conditions with normal start-up time, no external components with <1 second start up time + diode protection circuit Switching Frequency Quiescent Current Vin = min. to max. at 0% load Input Reflected Ripple Current All Series Min. Typ. Max. 470µF 6800µF 280kHz 330kHz 380kHz 5mA 7mA 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 Conducted Emissions Radiated Emissions ESD IEC/EN General Safety EN55022 EN55022 EN61000-4-2 Report: SPCLVD 1407030-1 MTBF (+25°C) using MIL-HDBK 217F 6584 x 10³ hours using MIL-HDBK 217F 1139 x 10³ hours . (+71°C) } Detailed Information see Application Notes chapter "MTBF" 42 pcs per Tube Class B Class B 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 R-78B-1.0 +Vin +Vout R-78Bxx-1.0 C1 22µF (Vin>30V) -Vin -Vout To protect the converter during power-up, use C1=22µF if Vin>30V 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 Ripple (mV) Efficiency (%) 25 10 20 10 34 20 34 Vin ( V ) Vin ( V ) Ripple Vs Vin ( Full Load ) Efficiency Vs Vin (Full Load) I-22 Vo=15V Vo=9V,12V Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.5V,1.8V 25 50 REV: 0/2015 www.recom-power.com R-78Bxx-1.0 (L) Series INNOLINE DC/DC-Converter Characteristics Ripple Efficiency 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 ) 0.6 0.8 1.0 1.2 Output Current ( A ) Efficiency Vs Load ( Vin=Max ) Ripple Vs Load ( Vin=Max ) Vo=15V Vo=12V Vo=9V, 6,5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 100 75 50 25 25 0.2 0.4 0.6 0.8 1.0 0.2 1.2 0.4 0.6 0.8 1.0 1.2 Output Current ( A ) Output Current ( A ) Ripple Vs Load ( Vin=Min ) Efficiency 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. The diode can either be fitted across the device if the source is low impedance or fitted in series with the output (recommended). www.recom-power.com +Vin R-78xx-xx +Vout +Vin Vout= +Vout 0.3V R-78xx-xx Schottky Diode -Vin -Vout REV: 0/2015 -Vin -Vout I-23 R-78B-1.0 Vo=9V,12V,15V Vo=6.5V Vo=2.5V,3.3V,5V Vo=1.5V,1.8V Ripple (mV) 50 Efficiency (%) 0.4 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) SIP3 PIN Package 8.50 8.50 17.5 RECOM R-78B5.0-1.0 **** Pb Front View 0.51 typ. 1.50 max 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 Top View RECOM R-78B5.0-1.0 **** Pb 4.10 0.7 ±1.0 4.10 Front 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-24 REV: 0/2015 www.recom-power.com