Features Switching Regulator * * * * Non-isolated Synchronous rectification design Adjustable output voltage 2, 3, 4Amp adjustable positive step down Integrated switching regulator * Over load protection * Continuous short circuit protection * Efficiency up to 97% Description The R-7xxx series is a high performance 2.5V to 17V, 2Amp to 4Amp, 12-Pin SIP (single in-line package), integrated switching regulator (ISR). The synchronous - rectified design yields excellent efficiencies up to 97%. Short circuit protection reduces the short circuit input current to under 50mA. Selection Guide Part Number R-723.3x R-725.0x R-726.5x R-729.0x R-7212x R-7215x R-733.3x R-735.0x R-736.5x R-739.0x R-7312x R-7315x R-743.3x R-745.0x R-746.5x Input Output Vout Output Efficiency Max. Capacitive Voltage Range Voltage Adjust Range (1) Current @ min Vin@ max. Vin Load (2) [VDC] [VDC] [VDC] [A] [%] [%] [F] 4.5 - 28 3.3 2.5 - 5.5 2 95 89 200/6800 6.5 - 28 5.0 3.0 - 5.5 2 96 91 200/6800 8.5 - 28 6.5 5.0 - 8.0 2 97 93 200/6800 12 - 28 9.0 7.0 - 11 2 96 93 200/6800 15 - 28 12 10 - 14 2 97 95 200/6800 19 - 28 15 13 - 17 2 97 96 200/6800 4.5 - 28 3.3 2.5 - 5.5 3 94 89 200/6800 6.5 - 28 5.0 3.0 - 5.5 3 95 92 200/6800 8.5 - 28 6.5 5.0 - 8.0 3 97 93 200/6800 12 - 28 9.0 7.0 - 11 3 96 94 200/6800 15 - 28 12 10 - 14 3 97 96 200/6800 19 - 28 15 13 - 17 3 97 96 200/6800 4.5 - 28 3.3 2.5 - 5.5 4 93 88 200/6800 6.5 - 28 5.0 3.0 - 5.5 4 95 91 200/6800 8.5 - 28 6.5 5.0 - 7.5 4 96 93 200/6800 DC/DC Converter R-7xxxP_D 2,3,4 Amp SIP12 Vertical & Horizontal Single Output IEC/EN60950-1 certified Notes: Note1: Vin-Vout 1.5V~4.0V depending on Vout if adjust function is used Note2: Please refer to basic characteristics on page I-2 Model Numbering R-7_ __ x Pinning (3) Output Current (A) nom. Output Voltage Notes: Note3: x can be P" = vertical through hole x can be D" = bent pins for horizontal through hole mounting Ordering Examples: R-723.3P Iout= 2A R-7312D Iout= 3A www.recom-power.com nom. Vout= 3.3VDC nom. Vout= 12VDC P= vertical through hole D= horizontal through hole REV.: 5/2018 I-1 R-7xxxP_D DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) BASIC CHARACTERISTICS Parameter Condition Quiescent Current Min. Typ. Max. 30mA min. Vin to max. Internal Power Dissipation ta<60C Output Current Limit R-72xxx R-73xxx R-74xxx 1.4W 3.0A 4.25A 5.5A 2.5A 3.75A 5.0A Minimum Load 10% ON/OFF CTRL (4) DC-DC ON DC-DC OFF Input Current of CTRL Pin DC-DC OFF Open or high, 4.5V min. / 28V max. Low (Power OFF) 0.8V max. 100A Internal Operating Frequency 270kHz Output Ripple and Noise Maximum Capacitive Load 300kHz 330kHz 40mVp-p 70mVp-p normal start-up time, no external diodes 200F <1 second start-up time + diode protection circuit 6800F Notes: Note4: ON/OFF pin driven by TTL (logic gate), open-collector bipolar transistor or open-drain MOSFET How to calculate the max output current Ambient Temperature [C] 100 The internal power dissipiation (PD ) follows the equation: PD= Iout= Iout x Vout x (1-Effmax Vin ) PD Vout x (1-Effmax Vin ) 85 80 60 40 20 0 0 0.5 1.4 1 Internal Power Dissipation [W] Example: R-745.0P Calculation 1: Vin = 28V Vout = 5V Effmax Vin = 91% PD = 1.4W TAmbient = 60C Calculation 2: Iout= 1.4W 5V x (1-0.91 ) Vin = 28V Vout = 5V Effmax Vin = 91% PD = 1.0W TAmbient = 85C = 3.11A Calculation 3: Vin = 12V Effmax Vin = 94% PD = 1.0W TAmbient = 85C Iout= 1W 5V x (1-0.94 ) Iout= 1W 5V x (1-0.91 ) = 2.222A = 3.33A continued on next page www.recom-power.com REV.: 5/2018 I-2 R-7xxxP_D DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) 100 100 90 95 Efficiency [%] Efficiency [%] Efficiency vs. Load R-72xx / R-73xx / R-74xx max. Vin 80 70 60 15Vout 5Vout 3.3Vout 50 40 0 1 2 3 R-72xx / R-73xx / R-74xx min. Vin 90 85 80 6.5Vout 5Vout 3.3Vout 75 70 4 0 1 2 Output Current [A] 3 4 Output Current [A] Efficiency vs. Input Voltage R-74xx 100 90 90 80 80 70 70 Efficiency [%] Efficiency [%] R-72xx / R-73xx 100 60 50 40 30 10 0 0 5 50 40 30 15Vout 6.5Vout 5Vout 3.3Vout 20 60 20 6.5Vout 5Vout 3.3Vout 10 10 15 20 25 0 28 0 5 Input Voltage [VDC] 10 15 20 25 28 Input Voltage [VDC] Ripple vs. Input Voltage R-74xx 100 45 90 40 80 35 70 Ripple (mV) Ripple (mV) R-72xx / R-73xx 50 30 25 20 15 5 0 0 6.5Vout 5Vout 3.3Vout 15Vout 12Vout 9Vout 10 5 10 15 50 40 30 6.5Vout 5Vout 3.3Vout 20 10 20 25 0 0 28 Input Voltage [VDC] www.recom-power.com 60 5 10 15 20 25 28 Input Voltage [VDC] REV.: 5/2018 I-3 R-7xxxP_D DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) Trim Table 2ADC R-723.3P/D R-725.0P/D R-726.5P/D R-729.0P/D R-7212P/D R-7215P/D 3ADC R-733.3P/D R-735.0P/D R-736.5P/D R-739.0P/D R-7312P/D R-7315P/D 4ADC R-743.3P/D R-745.0P/D R-746.5P/D Vout nom. Vout adj. 3.3VDC 5.0VDC 6.5VDC 9.0VDC 12VDC 15VDC R1 2.5 8.5k R2 R1 R2 R1 R2 R1 R2 R1 7.0 4.5k 13k 7.5 2.2k 10 2.2k 20k 11 390 47k 13 2.4k 36k 14 390 76k 3.0 33k 470k 3.2 110k 1.6k 3.3 R2 R1 R2 2.2k 3.4 36k 3.0k 3.6 11k 4.7k 3.9 4.7k 8.5k 4.5 1.6k 30k 4.9 820 220k 5.0 680 11k 5.1 560 28k 12k 5.5 190 2.6k 20k 6.0 47k 6.5 8.0 31k 9.0 12 15 16 2.6k 17 860 REGULATIONS Parameter Condition Value Output Accuracy full load 1.0% typ. / 2.0% max. Line Regulation low line to high line, full load 0.5% typ. / 1.0% max. Load Regulation (5) 10% to 100%, full load 0.5% typ. / 1.0% max. Transient Response (6) 50% load step change Vout Over / Undershoot 100s typ. / 200s max. 100mV max. Notes: Note5: Operation below 10% load will not harm the converter, but specifications may not be met Note6: Requires a 100F electrolytic or tantalum output capacitor for proper operation in all applications (the capacitor has to be placed as close as possible to the output pins) www.recom-power.com REV.: 5/2018 I-4 R-7xxxP_D DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) PROTECTIONS Parameter Condition Value Short Circuit Protection (SCP) continuous, automatic recovery Short Circuit Input Current 50mA typ. / 100mA max. Optional Diode Protection Circuit Optional Protection 1: Add a blocking diode to Vout if current can flow backwards into the output, as this can damage the converter when it is powered down. Protection diodes are required for high capacitive loads. The diode can either be fitted across the divice, if the source is low impedance or fitted in series with the output (recommended). Optional Protection : D1 +Vin +Vin R-5/6/7xxx +Vout +Vout +Vin +Vin R-5/6/7xxx GND GND +Vout Vadj +Vout D1 R1 GND GND GND GND R1: Trim output voltage up to 1 diode drop ENVIRONMENTAL Parameter Operating Temperature Range Condition Value without derating @ natural convection 0.1m/s Maximum Case Temperature -40C to +85C +110C Thermal Impedance @ natural convection 0.1m/s Operating Humidity non-condensing 25C/W 95% RH max. Operating Altitude 2000m Pollution Degree MTBF PD2 according to MIL-HDBK 217F, G.B. +25C +85C 749 x 10 hours 150 x 103 hours 3 SAFETY AND CERTIFICATIONS Certificate Type (Safety) Information Technology Equipment, General Requirements for Safety EAC Report / File Number 1605077-12 RU-AT.49.09571 RoHS 2+ Standard IEC60950-1:2005, 2nd Edition + AM2:2013 EN60950-1:2006 + AM2:2013 TP TC 004/2011 RoHS-2011/65/EU + AM-2015/863 continued on next page www.recom-power.com REV.: 5/2018 I-5 R-7xxxP_D DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) EMC Filtering Suggestions according to EN55032 C4 L2 L1 +Vin +Vin C1 +Vout +Vout GND C3 C2 R-746.5 GND GND Component List EN55022 C1 C2 C3 C4 L1 L2 Class A N/A 33F N/A N/A 0.45mH CMC Class B 10F 33F 1nF/2kV 2mH 0.45mH CMC DIMENSION AND PHYSICAL CHARACTERISTICS Parameter Type Value Material case potting non-conducive black plastic, (UL94 V-0) epoxy, (UL94 V-0) Dimension (LxWxH) 32.2 x 9.1 x 15.0mm Weight 9g typ. Dimension Drawing (mm) 32.2 15.0 R-7xxxD embossed logo 9.1 Marking 9.1 R-7xxxP 15.0 32.2 0.70+0.10/-0.05 Recommended Footprint Details 11 x 2.54 = 27.94 0.70+0.10/-0.05 0.250.05 Recommended Footprint Details Bottom View Top View 2.54 17.0 2.54 1 2 3 4 5 6 7 8 9 10 11 12 Bottom View 2.1 4.10 0.250.05 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 11 x 2.54 = 27.94 0.8 2.1 1 2 3 4 5 6 7 8 9 10 11 12 Top View 2.54 2.54 Pin Connections Pin # Single 1 ON/OFF 2,3,4 Vin 5, 6, 7, 8 GND 9, 10, 11 Vout 12 Vadj Tolerance: www.recom-power.com Description Input pin: Active low (less than 0.8V) to disable the device Power Input Input and Output ground (common) Power output with external resistors R1, R2 to selected output voltage xx.x= 0.5mm xx.xx= 0.25mm REV.: 5/2018 I-6 R-7xxxP_D DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) INSTALLATION AND APPLICATION Standard Application Circuit +Vin OFF 1F C1 (Optional) ON VCTRL +Vin R-7xxxP_D ON/OFF GND +Vout +Vout Rdown Vadj Q1 Rup C2 100F ESR= 150m max. (Required) Com Com Add blocking diode to Vout if current can flow backwards into the output, as this can damage the converter. (Please refer to "Optional Diode Protection Circuit" on Page I-5) PACKAGING INFORMATION Parameter Packaging Dimensions (LxWxH) Packaging Quantity Type R-7xxxD R-7xxxP tube Storage Temperature Range Value 520.0 x 20.0 x 19.0mm 530.0 x 23.0 x 19.0mm 15pcs -40C to +125C 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.: 5/2018 I-7