• Low cost switching regulator Features • High start-up current capability • Efficiency up to 95% DC/DC Converter • Short circuit protection Switching • Pin compatible with 78 series regulators Regulator • Non isolated DC-DC converter R-78E-0.5 • IEC/EN60950-1+ AM2 certified Description 0.5 Amp The R-78E series is a switching regulator module that has been designed to offer all the advantages of a SIP3 switching regulator (high efficiency, wide input range, accurate output voltage regulation) but with a low cost for production quantities. Due to the R-78E’s high efficiency of up to 95% no heat-sink is required. Single Output The compact TO-220 compatible SIP3 package measures only 11.6 x 8.5 x 10.4mm, so it saves precious board space. Selection Guide Part Input Output Output Efficiency (1) Max. Capacitive Number Voltage Range Voltage Current @ min Vin @max. Vin Load (2) [VDC] [VDC] [A] [%] [%] [µF] R-78E3.3-0.5 6-28 3.3 0.5 75 88 220 R-78E5.0-0.5 7-28 5 0.5 82 92 220 R-78E9.0-0.5 12-28 9 0.5 89 94 220 R-78E12-0.5 15-28 12 0.5 92 95 220 R-78E15-0.5 18-28 15 0.5 93 95 220 Notes: Note1: Efficiency is tested at nom. input voltage and full load Note2: Max. Cap Load is tested by nominal input and full resistive load Model Numbering IEC60950-1 certified EN60950-1 certified R-78E__-0.5 Output Voltage Output Current Specifications (measured @ Ta= 25°C, full load, nominal input voltage and after warm-up) BASIC CHARACTERISTICS Parameter Condition Min. Typ. Max. Input Voltage Range nom. Vin = 24VDC 6VDC 24VDC 28VDC Quiescent Current 1.5mA Minimum Load (3) 2% Internal Operating Frequency 570kHz 3.3, 5, 9Vout 50mVp-p Output Ripple and Noise (4) 20MHz BW 12, 15Vout 70mVp-p Notes: Note3: recommend to use with more than 2% load, if not, the ripple of the product may exceeds the specification, but doesn’t affect the reliability of the product Note4: Measurements are made with a 100nF MLCC across output (low ESR) continued on next page www.recom-power.com REV.: 3/2018 I-1

R-78E-0.5 DC/DC Converter Series Specifications (measured @ Ta= 25°C, full load, nominal input voltage and after warm-up) Efficiency vs Load R-78E5.0-0.5 100 90 80 70 %] y [ 60 c en 50 ci Effi 40 30 7Vin 12Vin 20 24Vin 10 28Vin 0 0 10 20 30 40 50 60 70 80 90 100 Output Load [%] REGULATIONS Parameter Condition Value Output Accuracy ±3.0% typ. Line Regulation low line to high line, full load ±0.5% typ. Load Regulation 10% to 100% load ±1.0% typ. PROTECTIONS Parameter Condition Value Short Circuit Protection (SCP) continuous, automatic recovery ENVIRONMENTAL Parameter Condition Value Operating Temperature Range natural convection and with derating (see graph) -40°C to +85°C Maximum Case Temperature 100°C Vibration 10-55Hz, 2G, 30min along X,Y,Z +25°C 7976 x 103 hours MTBF according to MIL-HDBK-217F, G.B. +70°C 2182 x 103 hours Derating Graph 100 90 80 70 %] d [ 60 a o ut L 50 p ut 40 O 30 20 10 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90100 85 Ambient Temperature [°C] www.recom-power.com REV.: 3/2018 I-2

R-78E-0.5 DC/DC Converter Series Specifications (measured @ Ta= 25°C, full load, nominal input voltage and after warm-up) SAFETY AND CERTIFICATIONS Certificate Type (Safety) Report / File Number Standard IEC60950-1:2005, 2nd Edition + AM 2:2013 Information Technology Equipment, General Requirements for Safety 1603123 EN60950-1:2006 + AM2:2013 EAC RU-AT.49.09571 TP TC 004/2011 RoHs 2+ RoHS 2011/65/EU + AM2015/863 EMC Compliance Condition Standard / Criterion Electromagnetic compatibility of multimedia equipment - with external filter EN55032, Class B Emission requirements EMC Filtering suggestion according to EN55032 Class A and B L1 +V R-78E-0.5 +V IN OUT C1 C2 GND GND Level C1 C2 L1 Class A 4.7µF MLCC - 3.9µH Class B 10µF MLCC 10µF MLCC 12µH DIMENSIONS and PHYSICAL CHARACTERISTICS Parameter Condition Value case non-conductive black plastic, (UL94 V-0) Material potting silicone, (UL94 V-0) Package Dimension (LxWxH) 11.6 x 8.5 x 10.4mm Package Weight 2g typ. Dimension Drawing (mm) embossed logo 11.6 8.5 4 0. Marking 1 1 5 0. Pin Connections 0.50+0.10/-0.05 10 0.25±0.05 Pin # Function 4. 1 +Vin 5.08 3.21 Recommended Footprint 2 GND 54 3 +Vout 2. Top View 1 2 3 0 Tolerance: xx.x= ±0.50mm Bottom View 2.0 1 2 3 xx.xx= ±0.25mm 2.54 www.recom-power.com REV.: 3/2018 I-3

R-78E-0.5 DC/DC Converter Series Specifications (measured @ Ta= 25°C, full load, nominal input voltage and after warm-up) INSTALLATION AND APPLICATION Standard Application +V R-78Exx-0.5 +V IN OUT C1 C2 10µF MLCC 10µF MLCC (optional) (optional) GND GND Notes: Note5: The R-78Exx-0.5 can not be used as positive to negativ converter PACKAGING INFORMATION Parameter Type Value Packaging Dimension (LxWxH) tube 520.0 x 11.2 x 18.2mm Packaging Quantity 42pcs Storage Temperature Range -55°C to +125°C The product information and specifications may be subject to changes even without prior written notice.The product has been designed for various applications; its suitability lies in the responsibility of each customer. The products are not authorized for use in safety-critical applications without RECOM’s explicit written consent. A safety-critical application is an application where a failure may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The applicant 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. www.recom-power.com REV.: 3/2018 I-4

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: R ECOM: R-78E5.0-0.5 R-78E3.3-0.5 R-78E9.0-0.5 R-78E12-0.5 R-78E15-0.5