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%
DC/DC Converter
R-7xxxP_D
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 Input Output Vout Output Efficiency Max. Capacitive
Number Voltage Range Voltage Adjust Range (1) Current @ min Vin @ max. Vin Load (2)
[VDC] [VDC] [VDC] [A] [%] [%] [µF]
R-723.3x 4.5 - 28 3.3 2.5 - 5.5
2
95 89
200/6800
R-725.0x 6.5 - 28 5.0 3.0 - 5.5
2
96 91
200/6800
R-726.5x 8.5 - 28 6.5 5.0 - 8.0
2
97 93
200/6800
R-729.0x 12 - 28 9.0 7.0 - 11
R-7212x 15 - 28 12 10 - 14
R-7215x 19 - 28 15 13 - 17
2
2
2
96
97
97
93
95
96
200/6800
200/6800
200/6800
R-733.3x 4.5 - 28 3.3 2.5 - 5.5
3
94 89
200/6800
R-735.0x 6.5 - 28 5.0 3.0 - 5.5
R-736.5x 8.5 - 28 6.5 5.0 - 8.0
R-739.0x 12 - 28 9.0 7.0 - 11
3
3
3
95
97
96
92
93
94
200/6800
200/6800
200/6800
R-7312x 15 - 28 12 10 - 14
R-7315x 19 - 28 15 13 - 17
R-743.3x 4.5 - 28 3.3 2.5 - 5.5
3
3
4
97
97
93
96
96
88
200/6800
200/6800
200/6800
R-745.0x 6.5 - 28 5.0 3.0 - 5.5
4
95 91
200/6800
R-746.5x 8.5 - 28 6.5 5.0 - 7.5
4
96 93
200/6800
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
2,3,4 Amp
SIP12
Vertical &
Horizontal
Single Output
IEC/EN60950-1 certified
Model Numbering
R-7_ __ x
Output Current (A)
nom. Output Voltage
Pinning (3)
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
nom. Vout= 3.3VDC P= vertical through hole
nom. Vout= 12VDC D= horizontal through hole
www.recom-power.com
REV.: 5/2018
I-1
