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| Features Efficiency up to 94%, non-isolated, no need for heatsinks! Pin-out compatible with LM78XX Linears Very low profile (L*W*H=11.5*7.5*10.2mm) Wide input range (4.75V ~ 18V) Short circuit protection, thermal shutdown UL94V-0 Package Material INNOLINE DC/DC-Converter Non standard outputs available as specials between 1.5V ~5.5V Low ripple and noise R-78xx-1.0 Series 1.0 AMP SIP3 Single Output 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 87 90 94 76 81 84 89 Description The R-78xx-1.0 series high efficiency switching regulators are ideally suited to replace 1 Amp 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. Low ripple and noise figures and a short circuit input current of typically only 10mA round off the specifications of this versatile converter series. Specifications ( typical at 25C, 10% minimum load, unless otherwise specified ) Characteristics Input Voltage Range Output Voltage Range Output Current Output Current Limit Short Circuit Input Current Internal Power Dissipation Short Circuit Protection Output Voltage Accuracy (At 100% Load) Line Regulation (100% Load, Vin max.) Load Regulation (10 to 100% full load) Dynamic Load Stability Ripple & Noise (20Mhz BW) Temperature Coefficient Max capacitance Load Switching Frequency Quiescent Current Vin = min. to max. at 0% load -40C -55C Internal IC junction using MIL-HDBK 217F using MIL-HDBK 217F +160C 1.9g 13338 x 10 hours 3880 x 10 hours www.recom-international.com Operating Temperature Range Operating Case Temperature (with derating) Storage Temperature Range Case Thermal Impendance Thermal Shutdown Package Weight MTBF (+25C) . 148 (+71C) 280 350 5 All Series All Series All Series 100% <-> 50% load All Series -40C ~ +85C ambient 2 0.2 0.4 85mV Conditions All Series All Series All Series All Series All Series 10 Min. 4.75 1.5 0 Typ. Max. 18V 5.5V 1000mA 3000mA 30mA 0.4W Continuous, automatic recovery 3% 0.4% 0.6% 100mV 0.015%/C 220F 7mA +85C +100C +125C 70C/W Output Power (%) Derating-Graph (Ambient Temperature) 120 100 80 60 40 30 20 0 -40 20mVp-p 30mVp-p 430kHz Safe Operating Area 0 25 50 Operating Temperature (C) 60 85 75 100 } Detailed Information see Application Notes chapter "MTBF" 27-March-2007 INNOLINE DC/DC-Converter Standard Application Circuit +Vin +Vout R-78xx-1.0 Series R-78xx-1.0 Add a blocking diode to Vout if current can flow backwards into the output, as this can damage the converter.. -Vout -Vin Characteristics Efficiency 100 75 50 Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V 50 Ripple 25 Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Efficiency (%) 25 5 Vin ( V ) 10 15 18 Ripple (mV) 5 Vin ( V ) 10 15 18 Efficiency Vs Vin (Full Load) Ripple Vs Vin ( Full Load ) 100 75 50 Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V 50 25 Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V Efficiency (%) 25 0.2 0.4 0.6 0.8 1.0 1.2 Ripple (mV) 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=5V Vo=3.3V Vo=2.5V Vo=1.8V 50 25 Efficiency (%) 25 0.2 0.4 0.6 0.8 1.0 1.2 Ripple (mV) Vo=5V Vo=3.3V Vo=2.5V Vo=1.8V 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 27-March-2007 149 INNOLINE Application Examples DC/DC-Converter R-78xx-1.0 Series REC3-0515DRW/H4 High efficiency, isolated, dual regulated outputs +Vin R-785.0-1.0 +15VDC Com C1 -Vin C2 - Medical Grade Isolated Dual Outputs - Wide input range 6.5V to 18V -15VDC C1: Optional , C2 : Required (further decoupling filtering may be necessary between the two converters) - High Efficiency, Suitable for 12V Battery Powered Devices Isolated (up to 6KV), wide Input range regulated output DC/DC Converter ( 1:1 ) +Vin R-78xx-1.0 C1 C2 - High isolation voltage - Improved loading / line regulation - Wide Input Voltage Range - Point-of-Load Architecture +Vout -Vin -Vout C1: Required (further decoupling filtering may be necessary between the two converters), C2: Optional Package Style and Pinning (mm) SIP3 PIN Package 3rd angle projection 7.55 10.2 RECOM R-785.0-1.0 0.51 typ. **** Pb RECOM R-785.0-1.0 **** Pb 4.10 0.7 typ. 123 Recommended Footprint Details 11.50 0.25 Bottom View Pin Connections Pin # 1 2 3 xx.x 0.5mm xx.xx 0.25mm +Vin GND +Vout 1.00 o+0.15/0 2.54 2.0 Top View 3.21 5.08 2.54 150 27-March-2007 www.recom-international.com |
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