Features ● ● ● ● ● ● ● ● ● ● Non-Isolated Synchronous rectification design Adjustable Output voltage 2, 3, 4AMP 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 current Iin<50mA) Input voltage range 4.5V~28V Efficiency to 97% Selection Guide Part Number SIP12 Input Range (V) Nominal Output Voltage (V) Vout Adjust Range (V) Output Current (A) Efficiency (%) Min. Vin 12V Max. Vin R-723.3x 4.5 – 28 3.3 2.5 – 5.5 2 95 93 89 R-725.0x 6.5 – 28 5.0 3.0 – 6.0 2 96 95 91 R-726.5x 8.5 – 28 6.5 5.0 – 8.0 2 97 96 93 R-729.0x 12 – 28 9.0 7.0 – 11 2 96 - 93 R-7212x 15 – 28 12 10 – 14 2 97 - 95 R-7215x 19 – 28 15 13 – 17 2 97 - 96 R-733.3x 4.5 – 28 3.3 2.5 – 5.5 3 94 93 89 R-735.0x 6.5 – 28 5.0 3.0 – 6.0 3 95 95 92 R-736.5x 8.5 – 28 6.5 5.0 – 8.0 3 97 96 93 R-739.0x 12 – 28 9.0 7.0 – 11 3 96 - 94 R-7312x 15 – 28 12 10 – 14 3 97 - 96 R-7315x 19 – 28 15 13 – 17 3 97 - 96 R-743.3x 4.5 – 28 3.3 2.5 – 5.5 4 93 92 88 R-745.0x 6.5 – 28 5.0 3.0 – 6.0 4 95 94 91 R-746.5x 8.5 – 28 6.5 5.0 – 7.5 4 96 96 93 INNOLINE DC/DC-Converter R-7xxxP_D Series 2, 3, 4 AMP SIP12 Vertical & Horizontal Note: Vin-Vout ≥ 1.5V~4.0V depending on Vout 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-7XXX series is a high performance 2.5V to 15V , 2Amp to 4Amp,12-Pin SIP (single in-line package).Integrated switching regulator (ISR), Synchronuous - rectified design yields excellent efficiencies up to 97%. Short circuit protection with crowbar function to reduce the short circuit current to under 50mA of input current. www.recom-international.com 24-August-2005 1 INNOLINE R-7xxxP_D Series DC/DC-Converter Specifications (refer to the standard application circuit, Ta: 25°C) Characteristics Conditions Min. Typ. Max. Output Voltage Range All Series 2.5 17V Output Current R-72xxP/D R-73xxP/D R-74xxP/D 0.2 0.3 0.4 2.0A 3.0A 4.0A Output Current Limit R-72xxP/D R-73xxP/D R-74xxP/D 2.5 3.75 5.0 Short Circuit Input Current All Series 50 3.0A 4.25A 5.5A 100mA Output Voltage Accuracy (At 100% Load) All Series ±1% ±2% Line Voltage Regulation (Vin = min. to max. at full load) All Series 0.5 1.0% Load Regulation (10 to 100% full load) All Series 0.5 1.0% Ripple & Noise All Series 40mVp-p Transient Response (see note 1) 50% Load Change – Vout Over / Undershoot 100µS Remote ON / OFF (see note 2) Open or High (Power ON) Low (Power OFF) 70mVp-p 200µs 100mV 4.5 Switching Frequency 28V 0.8V 270 300 330kHz Shutdown current ON / OFF Pin pulled low 100µA Quiescent Current Vin = min. to max. at 0% load 30mA Operating Temperature Range -40°C +85°C -40°C +125°C Operating Case Temperature +110°C Storage Temperature Range Thermal Impedance Natural Convection Internal Power Dissipation Ta < 60°C MTBF (Nominal Vout, 100% load) 25°C/W 1.4W Tamb. = +25°C 749kHrs Tamb. = +85°C 150kHrs Notes: 1. Requires a 100µF electrolytic or tantalum output capacitor for proper operation in all applications (the capacitor to be placed as close as possible to the output pins). 2. ON / OFF pin driven by TTL (logic gate), open-collector bipolar transistor or open-drain MOSFET. Standard Application Circuit Vin OFF 1µF (Optional) ON TTL 2, 3, 4 C1 1 Q1 R-72XX R-73XX R-74XX 5, 6, 7,8 Vout R1 12 (Adjust down) R2 (Adjust up) C2 100µF/10V (REQ`D) Com Com 2 9, 10, 11 24-August-2005 www.recom-international.com INNOLINE R-7xxxP_D 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 × Vo × (1-η) Io = PD / Vo × (1-η) Where PD = Internal power dissipation Io = Output current Vo = Output voltage η = Efficiency Example: R-745.0P , at Vin = 28Vdc , Vo = 5Vdc ,η=91% (see table 1) (a) When Ta = 60°C , PD = 1.4 Watt (see fig-1) Io = 1.4(W) / 5(V) × (1-0.91) = 3.11(A) (b) When Ta = 85°C , PD = 1 Watt (see fig-1) Io = 1(W) / 5(V) × (1-0.91) = 2.222(A) (c) At Vin = 12Vdc efficiency = 94% (see table 1) When Ta = 85°C , PD = 1 Watt (see fig-1) Io = 1(W) / 5(V) × (1-0.94) =3.33(A) 90 85 80 60 40 20 0 0.5 1 1.4 Internal Power Dissipation (W) Characteristics R-72xx / R-73xx Ripple VS Vin R-72xx / R-73xx Efficiency VS Vin R-74xx Ripple VS Vin 50 Vo=15V Vo=12V Vo=6.5V Vo=9V Vo=5V ( Vo ) 5 10 15 20 25 5V 3.3V ( Vo ) 28 5 Vin ( V ) 10 15 20 25 50 Efficiency (%) Ripple (mV) Vo=3.3V 6.5V 50 Ripple (mV) 25 ( Vo ) 5 28 Ripple Vs Vin R-72xx / R-73xx / R-74xx Efficiency / Load Vin=Min 20 25 28 R-72xx / R-73xx / R-74xx Efficiency / Load Vin=Max 100 Vo=6.5V Vo=5V Vo=3.3V 15 Efficiency Vs Vin Ripple Vs Vin 100 10 Vin ( V ) Vin ( V ) R-74xx Efficiency VS Vin 15V 6.5V 5V 3.3V 100 100 100 6.5V 5.0V 3.3V 90 15V 5.0V 3.3V 90 80 10 15 20 25 Vin ( V ) 28 80 ( Vo ) 70 1 3 2 Efficiency Vs Iout (Vin=Min) 4 Efficiency (%) ( Vo ) 5 Efficiency (%) Efficiency (%) 50 60 ( Vo ) 1 3 2 Efficiency Vs Iout (Vin=Max) 4 Efficiency Vs Vin www.recom-international.com 24-August-2005 3 INNOLINE R-7xxxP_D Series DC/DC-Converter Package Style and Pinning (mm) SIP12 PIN Package 3rd angle projection 32.20 15.00 32.20 9.1 RECOM R-723.3P 0.7 0.2 1 2 3 4 5 6 7 8 9 10 11 12 4.0 2.13 RECOM R-723.3D 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 1 ON / OFF Description Input pin : Active low (less than 0.8V) to disable the device 2, 3, 4 Vin Power input 5, 6, 7, 8 GND Input and output ground (common) 9 , 10, 11 Vout Power output 12 Vout-Adj With external resistors R1,R2 to selected output voltage Tolerance: ± 0.25 mm 4 24-August-2005 www.recom-international.com INNOLINE R-7xxxP_D Series DC/DC-Converter Table 1: Adjustment Resistor Values 2A DC R-723.3P/D R-725.0P/D R-726.5P/D R-729.0P/D R-7212P/D R-7215P/D 3A DC R-733.3P/D R-735.0P/D R-736.5P/D R-739.0P/D R-7312P/D R-7315P/D 4A DC R-743.3P/D R-745.0P/D R-746.5P/D 3.3VDC 5.0VDC 6.5VDC Vout (nominal) Vout (adj) R1 R2 2.5 8.5KΩ 3.0 33KΩ 470Ω 3.2 110KΩ 1.6KΩ R2 R1 - 9.0VDC R2 R1 7.0 560Ω 13KΩ 8.0 330Ω 31KΩ 12VDC R2 R1 10 2.2KΩ 20KΩ 11 390Ω 47KΩ 15VDC R2 R1 13 2.4KΩ 36KΩ 14 390Ω 76KΩ 3.3 R1 - R2 2.2KΩ 3.4 36KΩ 3.0KΩ 3.6 11KΩ 4.7KΩ 3.9 4.7KΩ 8.5KΩ 4.5 1.6KΩ 30KΩ 4.9 820Ω 220KΩ 5.0 680Ω 5.1 560Ω 28KΩ 12KΩ 5.5 190Ω 2.6KΩ 20KΩ 6.0 11KΩ 47KΩ 6.5 9.0 12 15 16 2.6KΩ 17 860Ω 18 www.recom-international.com 24-August-2005 5