R-78B1.5-1.0

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 Positive to Negative Converter Application Note for use as a voltage inverter (alternative to LM79xx Linear) INNOLINE DC/DC-Converter R-78Bxx1.0(L) Series 1.0 AMP SIP3 Single Output Selection Guide Part Number SIP3 R-78B1.5-1.0 R-78B1.8-1.0 R-78B2.5-1.0 R-78B3.3-1.0 R-78B5.0-1.0 R-78B6.5-1.0 R-78B9.0-1.0 R-78B12-1.0 R-78B15-1.0 Input Range (1) (V) 4.75 – 26 4.75 – 26 4.75 – 34 4.75 – 34 6.5 – 34 9.0 – 34 12 – 34 16 – 34 20 – 34 Output Voltage (V) 1.5 1.8 2.5 3.3 5.0 6.5 9.0 12 15 Output Current (A) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Efficiency Min. Vin Max. Vin (%) (%) 77 80 85 89 93 94 95 96 97 71 74 78 83 88 90 93 95 96 * add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.0L Note 1: 1.5V, 1.8V Output can be unstable with Vin>26VDC Description The R-78Bxx-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. Derating-Graph (Ambient Temperature) 120 100 80 60 40 20 0 Output Power (%) Safe Operating Area -40 0 25 50 Operating Temperature (°C) 85 75 100 71 www.recom-international.com 13-February-2007 1 INNOLINE DC/DC-Converter R-78Bxx-1.0 (L) Series Conditions 1.5V, 1.8V 2.5V to 15.5V All Series All Series All Series All Series 10 Min. 4.75 4.75 1.5 0 Typ. Max. 26.0V 34.0V 15.5V 1000mA 2000mA 30mA 0.65W Continuous, automatic recovery 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 -40°C ~ +85°C ambient 280 Vin = min. to max. at 0% load All Series -40°C -55°C Internal IC junction using MIL-HDBK 217F using MIL-HDBK 217F +160°C 95% RH 6584 x 10³ hours 1139 x 10³ hours 330 5 150 ±2 0.2 0.1 0.4 0.25 ±100mV 1.0 15mVp-p 25mVp-p ±3% 0.4% 0.2% 0.6% 0.4% ±150mV 1.5ms 20mVp-p 35mVp-p 0.015%/°C 220µF 380kHz 7mA 200mAp-p +85°C +100°C +125°C 60°C / W Specifications (refer to the standard application circuit, Ta: 25°C, minimum load = 10%) Characteristics Input Voltage Range Output Voltage Range (for customized parts) Output Current (see Note 2) Output Current Limit Short Circuit Input Current Internal Power Dissipation Short Circuit Protection 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=100µF) Ripple & Noise (without Output Capacitor) (10% to 100% full load) Temperature Coefficient Max capacitance Load Switching Frequency Quiescent Current Input Reflected Ripple Current Operating Temperature Range Operating Case Temperature Storage Temperature Range Case Thermal Impendance Thermal Shutdown Relative Humidity MTBF (+25°C) . (+71°C) } Detailed Information see Application Notes chapter "MTBF" Note 2: Converter requires a minimum load of 6mA to start up properly. Once started, the load can be reduced to 0%. Standard Application Circuit +Vin C1 22µF (Vin>30V) R-78Bxx-1.0 C2 +Vout Add a blocking diode to Vout if current can flow backwards into the output, as this can damage the converter.. 100µF (Option) -Vin To protect the converter during power-up, use C1=22µF if Vin>30V 2 13-February-2007 -Vout www.recom-international.com INNOLINE Characteristics DC/DC-Converter R-78Bxx-1.0 (L) Series Ripple Vo=15V Vo=12V Vo=9V Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V 50 Efficiency 100 75 50 Vo=1.8V Vo=1.5V 25 Efficiency (%) 25 10 Vin ( V ) 20 34 Ripple (mV) Vo=15V Vo=9V,12V Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.5V,1.8V 10 Vin ( V ) 20 34 Efficiency Vs Vin (Full Load) Ripple Vs Vin ( Full Load ) 100 75 50 Vo=15V Vo=12V Vo=9V Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V 50 25 Efficiency (%) 25 Ripple (mV) Vo=15V Vo=9V, 12V Vo=6.5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.5V, 1.8V 0.2 0.4 0.6 0.8 1.0 1.2 0.2 0.4 0.6 0.8 1.0 1.2 Output Current ( A ) Output Current ( A ) Efficiency Vs Load ( Vin=Max ) Ripple Vs Load ( Vin=Max ) 100 75 50 Vo=15V Vo=12V Vo=9V, 6,5V Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Vo=1.5V Ripple (mV) 50 25 Vo=9V,12V,15V Vo=6.5V Vo=2.5V,3.3V,5V Vo=1.5V,1.8V 0.2 0.4 0.6 0.8 1.0 1.2 Efficiency (%) 25 0.2 0.4 0.6 0.8 1.0 1.2 Output Current ( A ) Output Current ( A ) Efficiency Vs Load ( Vin=Min ) Ripple Vs Load ( Vin=Min ) www.recom-international.com 13-February-2007 3 INNOLINE Application Examples DC/DC-Converter R-78Bxx-1.0 (L) Series R-78B5.0-1.0 RD-0512D +12V@84mA +5V@0.4A High efficiency multiple output +Vin C1 -Vin C2 0V Com -12V@84mA 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) REC10-4812SRWZ/H +Vin +12V@0.1A R-78B5.0-1.0 C1 +5V@1A -Vin - 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 C2,C3 : optional R-78B3.3-1.0 +3.3V@1A C3 0V Package Style and Pinning (mm) SIP3 PIN Package 8.50 RECOM R-78B5.0-1.0 **** Pb 3rd angle projection 8.50 RECOM R-78B5.0-1.0 **** 17.5 0.51 typ. 4.10 1.50 max Pb 4.10 0.7 typ. 123 L - Version Recommended Footprint Details 11.50 1.00 ø+0.15/–0 2.54 Pin Connections Pin # 1 +Vin 2 GND 3 +Vout xx.x ±0.5mm xx.xx ±0.25mm 0.25 3.21 Bottom View 5.08 2.0 Top View 2.54 4 13-February-2007 www.recom-international.com