Effective May 2021 Technical Data 11181 Supersedes October 2020 EPM78Vx Non-isolated DC-DC converter Applications Industrial Automation & testing equipment Displays Lighting IoT Power Supply Energy Product features Solar and wind inverters Battery management Switching regulator, Non-isolated DC-DC converter Medical Convenient 3-Pin SIP Package compatible Hospital & home care equipment with LM78xx linear regulator Inventory tracking Input voltages: 4.75 V to 32 Vdc Diagnostics 6 SKUs representing 6 output voltages Telecom (1.8 V 15 V) 1A output current Networking and telecommunications Efficiency up to 96% Infrastructure Operating ambient temperature -40 C to +90 C Continuous short circuit protection Environmental compliance EN62368 safety approval Engineering tools EPM78 Evaluation kit Ordering part number PN: EPM78-EVK EPM 78 Vx- 01R8- 01R0 R Includes evaluation board and 7 EPM78 part numbers Eaton converter EPM78 Evalaution kit user guide Package type/size code Vx= Version code Output voltage maximum (R = decimal point) Output current maximum (R = decimal point) R=Standard, P=Positive logic, N= Negative logic EPM78Vx Technical Data 11181 Effective May 2021 Non-isolated DC-DC converter Specifications Parameter Conditions Minimum Typical Maximum Unit Input Input voltage range 24 Vdc Vo = 1.8 Vdc min. Vin 86 % Vo = 3.3 Vdc min. Vin 90 % Vo = 5.0 Vdc min. Vin 93 % EFficiency Vo = 6.5 Vdc min. Vin 94 % Vo = 12 Vdc min. Vin 95 % Vo = 15 Vdc min. Vin 96 % Mimimum load 1 % Line voltage regulation LL-HL 0.2 0.4 % Output Load voltage regulation 10-100% Load 0.4 0.6 % Voltage accuracy 3 % Operating frequency 100% Load at nominal Vin 500 kHz (1) Vo = 1.8 Vdc 50 mVp-p Vo = 3.3 Vdc 50 mVp-p Ripple & noise Vo = 5.0 Vdc 50 mVp-p (2) Vo = 6.5 Vdc 75 mVp-p Vo = 12 Vdc 100 mVp-p Vo = 15 Vdc 100 mVp-p Operating temperature With derating -40 +90 C Storage temperature -55 +125 C Relative humidity 95 %RH Environment Temperature coefficient 0.015 %/C Maximum case temperature 105 C Vibration MIL-STD-202G Short circuit protection Continuous, automatic recovery Function Saftey EN 62368-1 MTBF MIL-HDBK217F 13300 khours Dimension 0.457 (L) x 0.402 (W) x 0.300 (H) inches Weight 1.9 g Physical Cooling method Free air convention Case material Non conductive black plastic EMI EN 55032 Class A/B ESD EN61000-4-2 Air 8 kV EMC Contact 6 kV Criteria A 3 Fast transient EN 61000-4-4, 2 kV Criteria A 3 Surge EN 61000-4-5, 2 kV Criteria A 1. If you use 26 V input and the loading is less 5%, the R&N will be 100 mVp-p maximum 2. With a 4.7 F/ 50 V X7R MLCC, the R&N will be 50 mVp-p maximum 3. External input capacitor required 1500 F/ 50 V. 4. The product information and specifications are subject to change without prior notice. 5. All specifications valid at 24 V input, full load and +25 C after warm-up time unless otherwise stated. 2 www.eaton.com/electronics