● Efficiency up to 97%,Non isolated,
no need for heatsinks
● SMD Package
INNOLINE
Features
DC/DC-Converter
● Adjustable Output Voltage
● Wide input range.(4.75V ~ 34V)
● Short circuit protection, Thermal shutdown
● Remote On/Off Control
R-78Axx-
0.5SMD
Series
● UL94V-0 Package Material
● Very Low Shutdown Current
● See Positive-to Negative Converter
Application Note for use as a voltage
inverter (alternative to LM79xx Linear)
0.5 AMP
SMD
Single Output
Selection Guide
Part
Number
SMD
Input
Range (1)
(V)
Output
Voltage
(V)
Adjust
Range
(V)
Output
Current
(A)
Efficiency
Min. Vin Max. Vin
(%)
(%)
R-78A1.5-0.5SMD
R-78A1.8-0.5SMD
R-78A2.5-0.5SMD
R-78A3.3-0.5SMD
R-78A5.0-0.5SMD
R-78A6.5-0.5SMD
R-78A9.0-0.5SMD
R-78A12-0.5SMD
R-78A15-0.5SMD
4.75 – 30
4.75 – 34
4.75 – 34
4.75 – 34
6.5 – 34
8.0 – 34
11 – 34
1.5
1.8
2.5
3.3
5.0
6.5
9.0
12
fixed
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
73
63
1.5~3.3
1.5~4.5
1.8~5.5
2.5~8.0
3.3~11.0
4.5~12.6
4.5~12.6
fixed
82
87
91
94
95
96
97
97
71
77
81
86
88
92
94
95
15 – 34
18 – 34
15
Note 1:1.5V Output can be unstable with Vin>30VDC
Description
Derating-Graph
(Ambient Temperature)
The R-78Axx-0.5SMD series high efficiency switching regulators are ideally suited to pick-and-place mass
production. The efficiency of up to 97% means that very little energy is wasted as heat. The additional featu-
res of remote on/off control and adjustable output voltages will find many uses in the Battery-powered,
Industrial, Medical and Automotive markets. Low ripple and noise figures and a shutdown input current of
typically only 20uA round off the specifications of this versatile SMD converter series.
120
100
80
60
40
Safe Operating Area
20
0
85
-40
0
25
50
75
71
100
Operating Temperature (°C)
www.recom-international.com
27-March-2007
143
RECOM [ RECOM INTERNATIONAL POWER ]
