Features Switching Regulator * * * * Non-isolated Synchronous rectification design Adjustable output voltage 2, 3, 4 & 5AMP adjustable positive step down integrated switching regulator * Over load protection * Continuous short circuit protection * Efficiency up to 96% Description The R-5xxxA series is a high performance 1.2V to 5.5V, 2Amp to 5Amp, 12-Pin SIP (single in-line package) integrated switching regulator (ISR). The synchronous - rectified design yields excellent efficiencies up to 96%. Short circuit protection reduces the short circuit input current to under 50mA. Autosense function compensates for any losses in long circuit loops. Selection Guide Part Number R-521.2xA R-521.8xA R-522.5xA R-523.3xA R-525.0xA R-531.2xA R-531.8xA R-532.5xA R-533.3xA R-535.0xA R-541.2xA R-541.8xA R-542.5xA R-543.3xA R-545.0xA R-551.2xA R-551.8xA R-552.5xA R-553.3xA R-555.0xA Input Output Vout Output Efficiency Max. Capacitive Voltage Range Voltage Adjust Range (1) Current @ min Vin@ max. Vin Load (2) [VDC] [VDC] [VDC] [A] [%] 12V [%] [F] 4.5 - 18 1.2 1.0 - 3.0 2 83 79 75 300/6800 4.5 - 18 1.8 1.1 - 4.5 2 88 85 82 300/6800 4.5 - 18 2.5 1.6 - 5.5 2 91 88 86 300/6800 4.5 - 18 3.3 1.6 - 5.5 2 92 90 89 300/6800 6.5 - 18 5.0 3.0 - 5.5 2 95 93 92 300/6800 4.5 - 18 1.2 1.0 - 3.0 3 85 84 82 300/6800 4.5 - 18 1.8 1.1 - 4.5 3 89 88 86 300/6800 4.5 - 18 2.5 1.6 - 5.5 3 92 91 89 300/6800 4.5 - 18 3.3 1.6 - 5.5 3 94 93 92 300/6800 6.5 - 18 5.0 3.0 - 5.5 3 96 95 94 300/6800 4.5 - 18 1.2 1.0 - 3.0 4 82 81 79 300/6800 4.5 - 18 1.8 1.1 - 4.5 4 87 86 85 300/6800 4.5 - 18 2.5 1.6 - 5.5 4 91 89 88 300/6800 4.5 - 18 3.3 1.6 - 5.5 4 93 92 91 300/6800 6.5 - 18 5.0 3.0 - 5.5 4 95 94 93 300/6800 4.4 - 18 1.2 1.0 - 3.0 5 81 80 78 300/6800 4.5 - 18 1.8 1.1 - 4.5 5 86 85 84 300/6800 4.5 - 18 2.5 1.6 - 5.5 5 90 89 88 300/6800 4.5 - 18 3.3 1.6 - 5.5 5 92 91 90 300/6800 7.0 - 1.8 5.0 3.0 - 5.5 5 94 93 92 300/6800 DC/DC Converter R-5xxxPA_DA 2,3,4,5 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 Model Numbering R-5_ __ xA Output Current (A) Pinning (3) nom. Output Voltage Notes: Note3: x can be P"= vertical through hole x can be D" = bent for horizontal through hole mounting Ordering Examples: R-553.3PA Iout= 5A R-522.5DA Iout= 2A www.recom-power.com nom. Vout= 3.3VDC nom. Vout= 2.5VDC P= vertical through hole D= bent for horizontal through hole mounting REV.: 4/2018 I-1 R-5xxxPA_DA DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) BASIC CHARACTERISTICS Parameter Condition Quiescent Current Min. Typ. Max. 20mA min. Vin to max. Internal Power Dissipation 1.4W ta<60C Output Current Limit 3.0A 4.25A 5.5A 6.5A 2.5A 3.75A 5.0A 6.0A R-52xx R-53xx R-54xx R-55xx 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. / 18V max. Low (Power OFF) 0.8V max. 100A Internal Operating Frequency 270kHz R-52xx R-53xx & R-54xx & R-55xx Output Ripple and Noise Maximum Capacitive Load 300kHz 330kHz 40mVp-p 80mVp-p 70mVp-p 120mVp-p normal start-up time, no external diodes 300F <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 Iout= 0.5 1.4 1 Internal Power Dissipation [W] Example: R-545.0P Calculation 1: Vin = 18V Vout = 5V Effmax Vin = 93% PD = 1.4W TAmbient = 60C 0 1.4W 5V x (1-0.93 ) Calculation 2: Vin = 18V Vout = 5V Effmax Vin = 93% PD = 1W TAmbient = 85C = 4.0A Calculation 3: Vin = 12V Effmax Vin = 94% PD = 1.0W TAmbient = 85C Iout= 1W 5V x (1-0.94 ) Iout= 1W 5V x (1-0.93 ) = 2.857A = 3.33A continued on next page www.recom-power.com REV.: 4/2018 I-2 R-5xxxPA_DA DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) Efficiency vs. Load R-52xx min. Vin R-53xx / R-54xx / R-55xx min. Vin 95 95 Efficiency [%] 100 Efficiency [%] 100 90 85 80 85 80 5Vout 3.3Vout 2.5Vout 1.8Vout 1.2Vout 75 70 90 0.1 5Vout 3.3Vout 2.5Vout 1.8Vout 1.2Vout 75 1 2 3 4 70 5 0.1 0.5 R-53xx / R-54xx / R-55xx Vin=18V 1.5 2 90 Efficiency [%] Efficiency [%] 2 R-52xx Vin=18V 100 95 90 85 80 75 70 1.5 Output Load [A] Output Load [A] 100 1 5Vout 3.3Vout 2.5Vout 0.1 1 80 70 60 50 1.8Vout 1.2Vout 2 3 4 40 5 5Vout 3.3Vout 2.5Vout 0.1 1.8Vout 1.2Vout 0.5 Output Load [A] 1 Output Load [A] Trim Tables or Calculation 2ADC R-521.2PA/DA R-521.8PA/DA R-522.5PA/DA R-523.3PA/DA R-525.0PA/DA 3ADC R-531.2PA/DA R-531.8PA/DA R-532.5PA/DA R-533.3PA/DA R-535.0PA/DA 4ADC R-541.2PA/DA R-541.8PA/DA R-542.5PA/DA R-543.3PA/DA R-545.0PA/DA 5ADC R-551.2PA/DA R-551.8PA/DA R-552.5PA/DA R-553.3PA/DA R-555.0PA/DA Vout nom. Vout adj. 1.2VDC R1 1.8VDC R2 R1 2.5VDC R2 R1 3.3VDC R2 R1 5.0VDC R2 R1 R2 0.8 0.9 740 1.0 3.9k 1.1 13k 1.2 1.05k 2.1k 270 continued on next page www.recom-power.com REV.: 4/2018 I-3 R-5xxxPA_DA DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) Trim Tables or Calculation 2ADC R-521.2PA/DA R-521.8PA/DA R-522.5PA/DA R-523.3PA/DA R-525.0PA/DA 3ADC R-531.2PA/DA R-531.8PA/DA R-532.5PA/DA R-533.3PA/DA R-535.0PA/DA 4ADC R-541.2PA/DA R-541.8PA/DA R-542.5PA/DA R-543.3PA/DA R-545.0PA/DA 5ADC R-551.2PA/DA R-551.8PA/DA R-552.5PA/DA R-553.3PA/DA R-555.0PA/DA Vout nom. Vout adj. 1.2VDC R1 1.8VDC 2.5VDC R2 R1 R2 1.3 37k 3.7k 750 1.5 11.5k 10k 2.1K 3.3VDC R1 R2 R1 5.0VDC R2 R1 R2 390 1.6 8.2k 18k 3.0K 750 1.7 6.5k 41k 4.1K 1.2k 1.8 5.2k 5.6K 1.7k 1.9 4.3k 36k 7.5K 2.2k 2.0 3.6k 1.8k 10.5K 2.8k 2.4 2.1k 5.2k 82K 2.5 1.8k 4.3k 6.8k 8.5k 2.6 1.65k 3.6k 33k 10.5k 3.0 1.05k 2.1k 6.2k 33k 470 3.2 1.65k 4.1k 110k 1.6k 3.3 1.5k 3.4k 3.4 1.35k 2.9k 36k 3.0k 3.6 1.07k 2.2k 11k 4.7k 3.9 780 1.4k 4.7k 8.5k 4.5 390 650 1.6 30k 350 820 220k 4.9 2.2k 5.0 290 680 5.1 220 560 28k 5.5 39 190 2.6k REGULATIONS Parameter Condition Output Accuracy Value 1.0% typ. / 2.0% max. Line Regulation Load Regulation (5) low line to high line, full load R-52xx R-53xx & R-54xx & R-55xx 0.25% typ. / 0.5% max. 0.5% typ. / 1.0% max. 10% to 100%, full load R-52xx R-53xx & R-54xx & R-55xx 0.5% typ. / 1.0% max. 1.0% typ. / 2.0% max. 50% load step change Vout Over / Undershoot Transient Response (6) Notes: Note5: Note6: 100s typ. / 200s max. 100mV max. Operation below 10% load will not harm the converter, but specifications may not be met Requires a 100F electronic or tantalum output capacitpr for proper operation in all applications (the capacitor has to be placed as close as possible to the output pins): 100F for R-52xxx, R-53xx and R-54xx, 220F for R-55xx continued on next page www.recom-power.com REV.: 4/2018 I-4 R-5xxxPA_DA DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) Line Regulation R-53xx / R-54xx R-52xx / R- 55xx 1 Line Regulation [%] Line Regulation [%] 1 0.5 0 1.2 1.8 2.3 3.3 0.5 0 1.2 5.0 Output Voltage [V] 1.8 2.3 3.3 5.0 Output Voltage [V] Load Regulation R-53xx / R-54xx R-52xx / R- 55xx 2.0 2.0 1.5 Load Regulation [%] Load Regulation [%] 1.5 1.0 5Vout 3.3Vout 2.5Vout 1.8Vout 1.2Vout 0.5 0 5Vout 3.3Vout 2.5Vout 1.8Vout 1.2Vout 0 5.0 10 15 1.0 0.5 0 18 Input Voltage [V] 0 5.0 10 15 18 Input Voltage [V] PROTECTIONS Parameter Condition Short Circuit Protection (SCP) Value continuous, automatic recovery Short Circuit Input Current 50mA max. continued on next page www.recom-power.com REV.: 4/2018 I-5 R-5xxxPA_DA DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) 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 +110C Thermal Impedance @ natural convection 0.1m/s Operating Humidity non-condensing 25C/W 95% RH max. Operating Altitude 2000m Pollution Degree MTBF -40C to +85C PD2 according to MIL-HDBK 217F, G.B. +25C +85C 749 x 103 hours 150 x 103 hours 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 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. continued on next page www.recom-power.com REV.: 4/2018 I-6 R-5xxxPA_DA DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) Dimension Drawing (mm) 32.2 15.0 R-5xxxDA embossed logo 9.1 Marking 9.1 R-5xxxPA 15.0 32.2 0.70+0.10/-0.05 Recommended Footprint Details 11 x 2.54 = 27.94 0.250.05 Recommended Footprint Details Top View Bottom View 2.54 17.0 Bottom View 0.70+0.10/-0.05 2.54 1 2 3 4 5 6 7 8 9 10 11 12 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 Vout 11 Vout (Auto Sense) 12 Vadj Tolerance: Description Input pin: Active low (less than 0.8V) to disable the device Power Input Input and Output ground (common) Power output If unused this pin must be connected to Pin 9 and 10 With external resistors R1, R2 to selected output voltage xx.x= 0.5mm xx.xx= 0.25mm INSTALLATION AND APPLICATION Standard Application Circuit +Vin OFF 1F C1 (Optional) ON VCTRL +Vin R-5xxxPA_DA ON/OFF GND +Vout +Vout Vadj Rdown 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-6) continued on next page www.recom-power.com REV.: 4/2018 I-7 R-5xxxPA_DA DC/DC Converter Series Specifications (refer to standard application circuit, Ta= 25C) Parallel Application Circuit The R-52xx, R-53xx, R-54xx series can be used in parallel to upgrade the output current capacity for the same output voltage. For example, the R-543.3PA can parallel up with another R-554.3PA to give up to 8 amps or with the R-533.3PA or R-23-3PA types to give output currents of up to 7 amps or 6 amps. The R-55xx series cannot be paralleled. 1 2 3 4 ON/OFF Control Com U1 5 6 7 8 12 11 10 9 Vout C2-1 100F/10V (REQD) C1 100F/25V (REQD) Com C2-2 100F/10V (REQD) 4 3 2 1 5 6 7 U2 8 9 10 11 12 Component side must be connected together Solder side 1 C1 12 U1 +Vin Com 12 1 U1 C2-1 1 12 U2 12 1 U2 C2-2 Com +Vout Sense Keep 2mm to 5mm distance between both converters To Load PACKAGING INFORMATION Parameter Packaging Dimensions (LxWxH) Packaging Quantity Type R-5xxxDA R-5xxxPA 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.: 4/2018 I-8