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LME Datasheet(PDF) 1 Page - C&D Technologies |
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LME Datasheet(HTML) 1 Page - C&D Technologies |
1 / 2 page SELECTION GUIDE FEATURES s High Efficiency for Low Power Applications s Pin Compatible with NME & NML s 1kVDC Isolation s SIP & DIP Package Styles s Single Output Rail s Power Density 0.36W/cm3 s 3.3V, 5V and 12V Input s 3.3V, 5V, 9V, 12V and 15V Output s Footprint from 0.69cm2 s UL 94V-0 Package Material s No Heatsink Required s Internal SMD Construction s Toroidal Magnetics s Fully Encapsulated s No External Components Required s MTTF up to 3.2 Million Hours s PCB Mounting s Custom Solutions Available DESCRIPTION The LME series of DC-DC converters are optimised for low-power operation. Due to the low quiescent current they are able to offer efficiencies up to 75%. The use of advanced magnetics ensures a minimal quiescent current of around 2.5mA which ensures that efficiency is maximised in low power applications. They are ideally suited to generating a negative supply where only a positive rail exists. Nominal Input Output Output Isolation Package Voltage Voltage Current Efficiency Capacitance MTTF1 Style Order Code (V) (V) (mA) (%) (pF) kHrs LME0305D 3.3 5 50 70 25 2767 DIP LME0305S 3.3 5 50 70 25 2767 SIP LME0309D 3.3 9 28 75 30 1250 DIP LME0309S 3.3 9 28 75 30 1250 SIP LME0312D 3.3 12 21 75 38 655 DIP LME0312S 3.3 12 21 75 38 655 SIP LME0315D 3.3 15 16 75 38 367 DIP LME0315S 3.3 15 16 75 38 367 SIP LME0503D 5 3.3 76 70 25 2637 DIP LME0503S 5 3.3 76 70 25 2637 SIP LME0505D 5 5 50 70 29 2279 DIP LME0505S 5 5 50 70 29 2279 SIP LME0509D 5 9 28 75 37 1139 DIP LME0509S 5 9 28 75 37 1139 SIP LME0512D 5 12 21 75 41 624 DIP LME0512S 5 12 21 75 41 624 SIP LME0515D 5 15 16 75 40 357 DIP LME0515S 5 15 16 75 40 357 SIP LME1205D 12 5 50 70 38 536 DIP LME1205S 12 5 50 70 38 536 SIP LME1209D 12 9 28 75 40 434 DIP LME1209S 12 9 28 75 40 434 SIP LME1212D 12 12 21 75 43 330 DIP LME1212S 12 12 21 75 43 330 SIP LME1215D 12 15 16 75 45 237 DIP LME1215S 12 15 16 75 45 237 SIP When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the additional external capacitance for reliable start up. Parameter Conditions MIN TYP MAX Units Continuous operation, 3.3V input types 2.97 3.3 3.63 Voltage Range Continuous operation, 5V input types 4.5 5 5.5 V Continuous operation, 12V input types 10.8 12 13.2 Short-circuit duration3 1 second Lead temperature 1.5mm from case for 10 seconds 300°C Input voltage VIN, LME03 types 5V Input voltage VIN, LME05 types 7V Input voltage VIN, LME12 types 15V INPUT CHARACTERISTICS OUTPUT CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS 1 Calculated using MIL-HDBK-217F with nominal input voltage at full load. 2 See derating curve 3 Supply voltage must be discontinued at the end of the short circuit duration. All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified. LME SERIES Isolated 250mW Single Output DC-DC Converters www.dc-dc.com Parameter Conditions MIN TYP MAX Units Rated Power2 TA= 0°C to 70°C 0.25 W Voltage Set Point Accuracy See tolerance envelope Line Regulation High V IN to low V IN 1.2 %/% 10% load to rated load, Load Regulation 3.3V & 5V output types 15 % 10% load to rated load, all other output types 10 Ripple & Noise BW=DC to 20MHz, LME03 types 75 mV p-p BW=DC to 20MHz, all other output types 100 |
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