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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
UL94V-0 Package Material
INNOLINE
DC/DC-Converter
R-7xxxP_D Series
2, 3, 4 AMP SIP12 Vertical & Horizontal
Continuous short circuit protection (Very low short current Iin<50mA) Input voltage range 4.5V~28V Efficiency to 97%
Selection Guide
Part Number SIP12 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 Range (V) 4.5 - 28 6.5 - 28 8.5 - 28 12 - 28 15 - 28 19 - 28 4.5 - 28 6.5 - 28 8.5 - 28 12 - 28 15 - 28 19 - 28 4.5 - 28 6.5 - 28 8.5 - 28 Nominal Output Voltage (V) 3.3 5.0 6.5 9.0 12 15 3.3 5.0 6.5 9.0 12 15 3.3 5.0 6.5 Vout Adjust Range (V) 2.5 - 5.5 3.0 - 6.0 5.0 - 8.0 7.0 - 11 10 - 14 13 - 17 2.5 - 5.5 3.0 - 6.0 5.0 - 8.0 7.0 - 11 10 - 14 13 - 17 2.5 - 5.5 3.0 - 6.0 5.0 - 7.5 Output Current (A) 2 2 2 2 2 2 3 3 3 3 3 3 4 4 4 Efficiency (%) Min. Vin 12V Max. Vin 95 96 97 96 97 97 94 95 97 96 97 97 93 95 96 93 95 96 93 95 96 92 94 96 89 91 93 93 95 96 89 92 93 94 96 96 88 91 93
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). The Synchronuous - rectified design yields excellent efficiencies up to 97%. Short circuit protection with crowbar function reduces the short circuit current to under 50mA of input current.
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INNOLINE
DC/DC-Converter
Specifications (refer to the standard application circuit, Ta: 25C)
Characteristics Output Voltage Range Output Current Conditions All Series R-72xxP/D R-73xxP/D R-74xxP/D R-72xxP/D R-73xxP/D R-74xxP/D All Series All Series All Series All Series All Series 50% Load Change - Vout Over / Undershoot Open or High (Power ON) Low (Power OFF) ON / OFF Pin pulled low Vin = min. to max. at 0% load
R-7xxxP_D Series
Min. 2.5 0.2 0.3 0.4 2.5 3.75 5.0 50 1% 0.5 0.5 40mVp-p 100s 4.5 270 300 Typ. Max. 17V 2.0A 3.0A 4.0A 3.0A 4.25A 5.5A 100mA 2% 1.0% 1.0% 70mVp-p 200s 100mV 28V 0.8V 330kHz 100A 30mA -40C -40C Natural Convection Ta < 60C Tamb. = +25C Tamb. = +85C +85C +110C +125C 25C/W 1.4W 749 x 10hours 150 x 10hours
Output Current Limit
Short Circuit Input Current Short Circuit Protection Output Voltage Accuracy (At 100% Load) Line Voltage Regulation (Vin = min. to max. at full load) Load Regulation (10 to 100% full load) Ripple & Noise Transient Response (see note 1) Remote ON / OFF (see note 2) Switching Frequency Shutdown current Quiescent Current Operating Temperature Range Operating Case Temperature Storage Temperature Range Thermal Impedance Internal Power Dissipation MTBF (Nominal Vout, 100% load)
Continuous, automatic recovery
Notes:
1. Requires a 100F 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 1F (Optional) ON TTL Com
2, 3, 4 C1 1
R-72XX R-73XX R-74XX
5, 6, 7,8
9, 10, 11
(Adjust down)
R1
Vout
C2
Add a blocking diode to Vout if current can flow backwards into the output, as this can damage the converter..
12
Q1
(Adjust up)
R2
100F/10V (REQD)
Com
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INNOLINE
DC/DC-Converter
Output Current vs Input Voltage
R-7xxxP_D Series
How to calculate 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-745.0P , at Vin = 28Vdc , Vo = 5Vdc ,=91% (see "Selection Guide" table) (a) When Ta = 60C , PD = 1.4 Watt (see beside diagram) Io = 1.4(W) / 5(V) x (1-0.91) = 3.11(A) (b) When Ta = 85C , PD = 1 Watt (see beside diagram) Io = 1(W) / 5(V) x (1-0.91) = 2.222(A) (c) At Vin = 12Vdc efficiency = 94% (see "Selection Guide" table) When Ta = 85C , PD = 1 Watt (see beside diagram) Io = 1(W) / 5(V) x (1-0.94) =3.33(A)
Ambient Temperature (C)
90 85 80 60 40 20 0 0.5 1 1.4
Internal Power Dissipation (W)
Characteristics
R-72xx / R-73xx Ripple VS Vin
50 Vo=15V Vo=12V Vo=6.5V Vo=9V Vo=5V
R-74xx Ripple VS Vin
100 6.5V 50 Ripple (mV) 5V 3.3V ( Vo ) 5 10 Vin ( V ) Ripple Vs Vin 15 20 25 28
R-72xx / R-73xx Efficiency VS Vin
100 15V 6.5V 5V 3.3V
25
50 Efficiency (%)
Ripple (mV)
Vo=3.3V ( Vo ) 5 10 Vin ( V ) 15 20 25 28
( Vo ) 5 10 Vin ( V ) Efficiency Vs Vin 15 20 25 28
Ripple Vs Vin
R-74xx Efficiency VS Vin
100 Vo=6.5V Vo=5V Vo=3.3V
R-72xx / R-73xx / R-74xx Efficiency / Load Vin=Min
100 6.5V 5.0V 3.3V
R-72xx / R-73xx / R-74xx Efficiency / Load Vin=Max
100 90 80 15V 5.0V 3.3V
90 50 Efficiency (%) Efficiency (%)
Efficiency (%)
80 ( Vo ) 70 1 3 2 Efficiency Vs Iout (Vin=Min) 4
60 ( Vo ) 1 3 2 Efficiency Vs Iout (Vin=Max) 4
( Vo ) 5 10 Vin ( V ) Efficiency Vs Vin 15 20 25 28
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DC/DC-Converter
Package Style and Pinning (mm)
R-7xxxP_D Series
3rd angle projection 9.1 32.20 9.1
SIP12 PIN Package
32.20
15.00
RECOM R-723.3P
1 2 3 4 5 6 7 8 9 10 11 12
15.00
RECOM R-723.3D
1 2 3 4 5 6 7 8 9 10 11 12
0.2
4.0 2.13 0.7 2.54 0.2
2.13
0.7
2.54
Bottom View
Bottom View
0.7 4.0
0.7
Pin Connections Pin # 1 2, 3, 4 5, 6, 7, 8 9 , 10, 11 12 Tolerance: 0.25 mm Name ON / OFF Vin GND Vout Vout-Adj 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
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DC/DC-Converter
Table 1: Adjustment Resistor Values
2A DC 3A DC 4A DC Vout (nominal) Vout (adj) 2.5 3.0 3.2 3.3 3.4 3.6 3.9 4.5 4.9 5.0 5.1 5.5 6.0 6.5 7.0 8.0 9.0 10 11 12 13 14 15 16 17 18 2.2K 390 560 330 13K 31K 36K 11K 4.7K 1.6K 820 680 560 190 28K 2.6K R-723.3P/D R-733.3P/D R-743.3P/D 3.3VDC R1 8.5K 33K 110K 470 1.6K 2.2K 3.0K 4.7K 8.5K 30K 220K 11K 12K 20K 47K R2 R-725.0P/D R-735.0P/D R-745.0P/D 5.0VDC R1 R2 R-726.5P/D R-736.5P/D R-746.5P/D 6.5VDC R1 R2 9.0VDC R1 R2 R-729.0P/D R-739.0P/D
R-7xxxP_D Series
R-7212P/D R-7312P/D R-7215P/D R-7315P/D 12VDC R1 R2 R1 15VDC R2
20K 47K
2.4K 390
36K 76K
2.6K 860
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