INNOLINE
DC/DC-Converter
with 3 year Warranty
R-78AA-1.0
IEC/EN-60950-1 Certified
RoHS
2011/65/EU
6/6
1.0 AMP
SMD
Single Output
Features
Selection Guide
Part Input Output Adjust Output Efficiency
Number Range Voltage Range Current Min. Vin Max. Vin
SMD (V) (V) (V) (A) (%) (%)
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
Characteristics Conditions Min. Typ. Max.
Input Voltage Range See Table 4.75V 18.0V
Output Voltage Range See Table 1.5V 5.5V
Output Current All Series 0mA* 1000mA
Short Circuit Input Current Vin = 12V 120mA
Internal Power Dissipation 0.4W
Short Circuit Protection Continuous, automatic recovery
Output Voltage Accuracy 100% Load ±2% ±3%
Adjustable Voltage Range See Table 1 ±50%
Line Voltage Regulation (Vin = min to max at full load) 0.2% 0.4%
Load Regulation (10% to 100% full load) 0.7% 1.0%
Dynamic Load Stability 100%<>50% load, 25mA/µs ±85mV ±100mV
Ripple & Noise (20MHz BW) 20mVp-p 30mVp-p
Temperature Coefficient -40°C~+85°C ambient 0.015%/°C
Max capacitance Load with normal start-up time, no external components 470µF
with <1 second start up time + diode protection circuit 6800µF
Switching Frequency 335kHz 385kHz 435kHz
Quiescent Current Vin = min. to max. at 0% load 5mA 7mA
ON/OFF Remote Control Pin Drive Current ON: Open or 1.6V<Vr<5V
OFF: GND or 0<Vr<1.6V Ir=1.8µA typ
Converter Input Current (valid for Vr < 1.6V) 20µA 35µA
Remote On/Off Threshold Voltage (Vr rising) 2.4V 2.6V 2.8V
Remote On/Off Voltage Hysteresis 250mV
Operating Temperature Range -40°C +85°C
Switch On/Off Time (using Remote On/Off Control) 50ms
Operating Case Temperature +100°C
Storage Temperature Range -55°C +125°C
Case Thermal Impedance 70°C / W
continued on next page
Specifications
( typical at 25°C, 10% minimum load, unless otherwise specified )
Description
Derating-Graph
(Ambient Temperature)
● Replacement for R-78Axx-1.0SMD series
● RoHS 6/6 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
The R-78AAxx-1.0SMD series are manufactured without lead and meet the requirements for RoHS 6/6 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 volta-
ges will find many uses in the battery-powered, industrial, medical and automotive markets.
* add suffix -R for tape&reel packing e.g. R-78AA5.0-1.0-R. For more details see Application Notes.
www.recom-power.com I-15REV: 2/2016
