R-78AA15-0.5SMD-R

• Efficiency up to 95%, no need for heatsinks • High reflow temperature SMD package • Adjustable output voltage buck converter • Wide input range (4.74V - 32V) • Short circuit protection, thermal shutdown • Remote on/off control • Very low shutdown current • Positive to negative converter Features Switching Regulator Description The R-78AAxx-0.5SMD series are adjustable output non-isolated buck converters that meet the requirements for RoHS 10/10 as well as the reflow soldering temperatures associated with vapor phase soldering, making these high efficiency switching regulators ideally suited to modern pick-and-place mass production. The efficiency of up to 97% means that very little energy is wasted as heat. The additional features of remote on/off control, continuous short circuit protection and adjustable output voltages will find many uses in the battery-powered, industrial, medical and automotive markets. DC/DC Converter R-78AA-0.5 0.5 Amp SMD Single Output Selection Guide Part Input Number Voltage Range [VDC] (1) R-78AA1.5-0.5SMD 4.75 - 30 R-78AA1.8-0.5SMD 4.75 - 32 R-78AA2.5-0.5SMD 4.75 - 32 R-78AA3.3-0.5SMD 4.75 - 32 R-78AA5.0-0.5SMD 6.5 - 32 R-78AA6.5-0.5SMD 8.0 - 32 R-78AA9.0-0.5SMD 11 - 32 R-78AA12-0.5SMD 15 - 32 R-78AA15-0.5SMD 18 - 32 Output Vout Voltage Adjust Range [VDC] [VDC] 1.5 fixed 1.8 1.5 - 3.0 2.5 1.5 - 3.0 3.3 3.0 - 5.5 5.0 3.0 - 8.0 6.5 3.3 - 11.0 9.0 4.5 - 12.6 12 4.5 - 12.6 15 fixed Output Efficiency Current @ min Vin @ max. Vin [A] [%] [%] 0.5 73 63 0.5 82 71 0.5 87 77 0.5 91 81 0.5 94 86 0.5 95 88 0.5 96 92 0.5 97 94 0.5 97 95 Notes: Note1: Input voltage ranges valid for nominal output voltages Vin must be higher than Vout including adjust range and dropout voltage EN60950-1 certified IEC60950-1 certified Model Numbering R-78AA__-0.5 SMD-_ nom. Output Voltage Output Current Packaging (2) Package Notes: Note2: add suffix -R for tape & reel packaging Ordering Examples: R-78AA5.0-0.5SMD-R = 5.0VDC Output Voltage, 0.5A, SMD, tape and reel packaging R-78AA2.5-0.5SMD = 2.5VDC Output Voltage, 0.5A, SMD, tube www.recom-power.com REV.: 5/2019 I-1 R-78AA-0.5 DC/DC Converter Series Specifications (measured @ Ta= 25°C, 10% minimum load, unless otherwise stated) BASIC CHARACTERISTICS Parameter Condition Min. Typ. Absolute Maximum Input Voltage 34VDC Quiescent Current 5mA Vin= min. to max. 7mA 0.4W Internal Power Dissipation see calculation Output Voltage Adjustability Minimum Load Max. 0% (3) Start-up time ON/OFF CTRL ON/OFF CTRL DC-DC ON DC-DC OFF Input Current of CTRL Pin DC-DC OFF 50ms Open or 2.8VDC