Features Auto-sense Non-Isolation Synchronous rectification design Adjustable Output voltage 2, 3, 4 & 5AMP Adjustable Positive Step Down Integrated Switching Regulator Over load protection (125% full load typical) Remote ON/OFF Control(Ground Off) Wide Input Range Continuous short circuit protection (Very low short input current: Iin<50mA) Input voltage range 4.5V~18V Efficiency to 96% Selection Guide Part Number SIP12 Inpu Range (V) Nominal Vout Output Voltage Adjust Range (V) (V) Output Efficiency (%) Current (A) min Vin 12V max Vin R-521.2xA 4.5 - 18 1.2 1.0 - 3.0 2 83 79 75 R-521.8xA 4.5 - 18 1.8 1.1 - 4.5 2 88 85 82 R-522.5xA 4.5 - 18 2.5 1.6 - 5.5 2 91 88 86 R-523.3xA 4.5 - 18 3.3 1.6 - 5.5 2 92 90 89 R-525.0xA 6.5 - 18 5.0 3.0 - 5.5 2 95 93 92 R-531.2xA 4.5 - 18 1.2 1.0 - 3.0 3 85 84 82 R-531.8xA 4.5 - 18 1.8 1.1 - 4.5 3 89 88 86 R-532.5xA 4.5 - 18 2.5 1.6 - 5.5 3 92 91 89 R-533.3xA 4.5 - 18 3.3 1.6 - 5.5 3 94 93 92 R-535.0xA 6.5 - 18 5.0 3.0 - 5.5 3 96 95 94 R-541.2xA 4.5 - 18 1.2 1.0 - 3.0 4 82 81 79 R-541.8xA 4.5 - 18 1.8 1.1 - 4.5 4 87 86 85 R-542.5xA 4.5 - 18 2.5 1.6 - 5.5 4 91 89 88 R-543.3xA 4.5 - 18 3.3 1.6 - 5.5 4 93 92 91 R-545.0xA 6.5 - 18 5.0 3.0 - 5.5 4 95 94 93 R-551.2xA 4.5 - 18 1.2 1.0 - 3.0 5 81 80 78 R-551.8xA 4.5 - 18 1.8 1.1 - 4.5 5 86 85 84 R-552.5xA 4.5 - 18 2.5 1.6 - 5.5 5 90 89 88 R-553.3xA 4.5 - 18 3.3 1.6 - 5.5 5 92 91 90 R-555.0xA 7.0 - 18 5.0 3.0 - 5.5 5 94 93 92 INNOLINE DC/DC-Converter R-5xxxPA _DA Series 2, 3, 4, 5 AMP SIP12 Vertical & Horizontal Note: Vin -Vout 1.5V if adjust function is used! Suffix x: (see mechanical drawing for details) x = P pins vertical through hole x = D pins bent for horizontal through hole mounting Description The R-5XXX series is a high performance 1.2V to 5.0V , 2Amp to 5Amp,12-Pin SIP (single in-line package) integrated switching regulator (ISR). Synchronuous - rectified design yields excellent efficiencies up to 96%.Short circuit protection with crowbar function to reduce the short current under 50mA of input current. Autosense function compensates for any losses in long circuit loops. 128 24-August-2005 www.recom-international.com INNOLINE R-5xxxPA_DA Series DC/DC-Converter Specifications (refer to the standard application circuit, Ta: 25C) Characteristics Conditions Min. Typ. Max. Output Voltage Range All Series 0.8 6.0V Output Current R-52xxPA/DA R-53xxPA/DA R-54xxPA/DA R-55xxPA/DA 0.2 0.3 0.4 0.5 2.0A 3.0A 4.0A 5.0A Output Current Limit R-52xxPA/DA R-53xxPA/DA R-54xxPA/DA R-55xxPA/DA 2.5 3.75 5.0 6.0 3.0A 4.25A 5.5A 6.5A Short Circuit Input Current All Series Output Voltage Accuracy At 100% Load All Series 1% 50mA 2% Line Voltage Regulation (Vin = min. to max. at full load) R-52xxPA/DA R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA 0.25 0.5 0.5% 1.0% Load Regulation (10 to 100% full load) R-52xxPA/DA R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA 0.5 1.0 1.0% 2.0% Ripple & Noise R-52xxPA/DA R-53xxPA/DA & R-54xxPA/DA & R-55xxPA/DA 40mVp-p 80mVp-p Transient Response (see note 1) 50% Load Change Vout Over / Undershoot Remote ON / OFF (see note 2) (positive logic) Remote Off Input Current Open or High (Power ON) Low (Power OFF) Remote ON/OFF low level Switching Frequency Quiescent Current 70mVp-p 120mVp-p 100S 200s 100mV 4.5 270 18V 0.8V 100A 300 330kHz Vin = min. to max. at 0% load 20mA Operating Temperature Range -40C +85C Storage Temperature Range -40C +125C Internal Power Dissipation MTBF (Nominal Vout, 100% load) Io x Vo x (1-Efficiency) 1.4W Tamb. = +25C 749kHrs Tamb. = +85C 150kHrs Notes: 1. Requires an electrolytic or tantalum output capacitor for proper operation in all applications (the capacitor to be placed as close as possible to the output pins) 100F for R-52xxPA/DA, R-53xxPA/DA and R-54xxPA/DA or 220F for R-55xxPA/DA. 2. ON / OFF pin driven by TTL (logic gate), open-collector bipolar transistor or open-drain MOSFET. 3. Output Current vs. Input Voltage (see graph below). www.recom-international.com 24-August-2005 129 INNOLINE R-5xxxPA_DA Series DC/DC-Converter Standard Application Circuit 11 2, 3, 4 Vin TTL OFF R-52XX R-53XX R-54XX R-55XX 1F (Optional) C1 ON 1 Q1 R1 (Adjust down) 9, 10 Vout 12 C2 (Req'd) R2 5, 6, 7,8 (Adjust up) 100F/10V or 220F/10V (see Note 1) Com Com 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-523.3PA types to give output currents of up to 7 Amps or 6 Amps. The R-55xx series cannot be paralleled. Vin ON/OFF Control Q1 C1 100F/25V (REQD) 1 2 3 4 U1 5 7 6 12 11 10 8 9 Vout C2-1 100F/10V (REQD) Com Com C2-2 100F/10V (REQD) 4 3 2 1 Component side 5 7 6 U2 8 9 10 11 12 must be connected together Solder side 1 C1 +Vin Com 12 1 12 U1 U1 C2-1 1 12 U2 12 Keep 2mm to 5mm distance between both converters 1 U2 C2-2 Com +Vout Sense To Load 130 24-August-2005 www.recom-international.com INNOLINE R-5xxxPA_DA Series DC/DC-Converter Output Current vs Input Voltage Ambient Temperature (C) How to calculating the max output current The internal power dissipation(PD)follows the equation: PD = Io x Vo x (1-) Io = PD / Vo x (1-) Where PD = Internal power dissipation Io = Output current Vo = Output voltage = Efficiency Example: R-545.0P , at Vin = 18Vdc , Vo = 5Vdc ,=93% (see table 1) (a) When Ta = 60C , PD = 1.4 Watt (see fig-1) Io = 1.4(W) / 5(V) x (1-0.93) = 4(A) (b) When Ta = 85C , PD = 1 Watt (see fig-1) Io = 1(W) / 5(V) x (1-0.93) = 2.857(A) (c) At Vin = 12Vdc efficiency = 94% (see table 1) When Ta = 85C , PD = 1 Watt (see fig-1) Io = 1(W) / 5(V) x (1-0.94) =3.33(A) 90 85 80 60 40 20 0 0.5 1 1.4 Internal Power Dissipation (W) Characteristics R-53xx / R-54xx Output Voltage Line Regulation VS Vout R-52xx / R-55xx Output Voltage Line Regulation VS Vout 1 Line Regulation (%) 0.5 0 1.8 1.2 Output Voltage (V) 2.3 0 R-53xx / R-54xx Intput Voltage Load Regulation VS Vin Load Regulation (%) 1.5 1.0 0.5 www.recom-international.com 10 15 2.3 5.0 3.3 2.0 1.2V 1.8V 2.5V 3.3V 5.0V 5 Input Voltage (V) 1.8 1.2 Output Voltage (V) R-52xx / R-55xx Intput Voltage Load Regulation VS Vin 2.0 0 0.5 5.0 3.3 1.5 Load Regulation (%) Line Regulation (%) 1 1.0 1.2V 1.8V 2.5V 0.5 3.3V 5.0V 0 20 24-August-2005 5 Input Voltage (V) 10 15 20 131 R-5xxxPA_DA Series INNOLINE DC/DC-Converter Characteristics R-52xx Output Current Efficiency vs Iout (Vin = Min) R-53xx / R-54xx / R-55xx Output Current Efficiency vs Iout (Vin = Min) 100 100 5.0V 3.3V 2.5V 1.8V 90 3.3V 2.5V 1.8V 80 1.2V 70 1 2 Output Current (A) 1.2V R-53xx / R-54xx / R-55xx Output Current Efficiency vs Iout (Vin = 18V) 70 0.5 1.0 Output Current (A) 2.0 1.5 R-52xx Output Current Efficiency VS Iout (Vin = 18V) 100 100 1.2V 70 1 2 Output Current (A) 4 3 80 70 Efficiency (%) 1.8V 80 5.0V 3.3V 2.5V 1.8V 1.2V 90 5.0V 3.3V 2.5V 90 Efficiency (%) 80 5 4 3 90 Efficiency (%) Efficiency (%) 5.0V 5 60 50 40 0.5 1.0 Output Current (A) 2.0 1.5 Package Style and Pinning (mm) SIP12 PIN Package 3rd angle projection 32.20 15.00 32.20 9.1 RECOM R - 5 2 1 . 2 PA 0.7 0.2 1 2 3 4 5 6 7 8 9 10 11 12 4.0 2.13 RECOM R-521.2DA 15.00 1 2 3 4 5 6 7 8 9 10 11 12 9.1 2.54 2.13 0.7 2.54 0.2 Bottom View Bottom View 0.7 4.0 0.7 Pin Connections Pin # Name Description 1 ON / OFF 2, 3, 4 Vin 5, 6, 7, 8 GND Input and output ground (common) 9 , 10 Vout Power output 11 12 Vout (Auto Sense) Vout-Adj Input pin : Active low (less than 0.8V) to disable the device Power input If unused this pin must be connected to Pin 9 and 10 With external resistors R1,R2 to selected output voltage Tolerance: 0.25 mm 132 24-August-2005 www.recom-international.com INNOLINE R-5xxxPA_DA Series DC/DC-Converter Table 1: Adjustment Resistor Values 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 1.2Vdc 1.8Vdc 2.5Vdc 3.3Vdc 5.0Vdc Vout (nominal) Vout (adj) R1 R2 R1 R2 R1 R2 R1 R2 R1 R2 0.8 (V) 0.9 (V) 740 1.0 (V) 3.9K 1.1 (V) 13K 1.05K 1.2 (V) 2.1K 270 1.3 (V) 37K 3.7K 750 1.5 (V) 11.5K 10K 2.1K 390 1.6 (V) 8.2K 18K 3.0K 750 1.7 (V) 6.5K 41K 4.1K 1.2K 1.8 (V) 5.2K 5.6K 1.7K 1.9 (V) 4.3K 36K 7.5K 2.2K 2.0 (V) 3.6K 1.8K 10.5K 2.8K 2.4 (V) 2.1K 5.2K 82K 6.8K 2.5 (V) 1.8K 4.3K 2.6 (V) 1.65K 3.6K 33K 10.5K 3.0 (V) 1.05K 2.1K 6.2K 33K 470 3.2 (V) 1.65K 4.1K 110K 1.6K 3.3 (V) 1.5K 3.4K 3.4 (V) 1.35K 2.9K 36K 3.0K 3.6 (V) 1.07K 2.2K 11K 4.7K 3.9 (V) 780 1.4K 4.7K 8.5K 4.5 (V) 390 650 1.6K 30K 4.9 (V) 350 820 220K 5.0 (V) 290 680 5.1 (V) 220 560 28K 5.5 (V) 39 190 2.6K www.recom-international.com 24-August-2005 8.5K 2.2K 133