www.recom-power.com REV.: 4/2018 I-1
Features
Switching
Regulator
• RoHS 10/10 conform (100% lead free)
• High reflow temperature SMD package
• Adjustable output voltage
• Short circuit protection, thermal shutdown
• Remote ON/OFF control
• very low shutdown current
R-78AA-1.0
Description
The R-78AAxx-1.0SMD series are manufactured without lead and meet the requirements for
RoHS 10/10 as well as the increased 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 94% means that very little energy is wasted as heat.
The additional features of remote on/off control and adjustable output voltages will find many uses in the
battery-powered, industrial, medical and automotive markets.
DC/DC Converter
1.0 Amp
SMD
Single Output
EN60950-1 certified
IEC60950-1 certified
Selection Guide
Part Input Output Vout Output Efficiency
Number Voltage Range Voltage Adjust Range Current @ min Vin @ max. Vin
[VDC] [VDC] [VDC] [mA] [%] [%]
R-78AA1.5-1.0SMD 4.75 - 18 1.5 fixed 1.0 77 73
R-78AA1.8-1.0SMD 4.75 - 18 1.8 1.5 - 3.0 1.0 82 76
R-78AA2.5-1.0SMD 4.75 - 18 2.5 1.5 - 3.0 1.0 87 81
R-78AA3.3-1.0SMD 4.75 - 18 3.3 3.0 - 5.5 1.0 90 84
R-78AA5.0-1.0SMD 6.5 - 18 5.0 3.0 - 5.5 1.0 94 89
Model Numbering
Notes:
Note1: add suffix -R for tape & reel packaging
Ordering Examples:
R-78AA5.0-1.0SMD-R = 5.0VDC Output Volage, 1.0A, SMD, tape and reel packaging
R-78AA2.5-1.0SMD = 2.5VDC Output Volage, 1.0A, SMD, tube
nom. Output Voltage
Output Current
Packaging (1)
Package
R-78AA__-1.0SMD-_