Features
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Efficiency up to 97%,Non isolated,
no need for heatsinks
Pin-out compatible with LM78XX Linears
Low profile( L*W*H=11.5*8.5*17.5mm)
Wide input range.(4.75V ~ 34V)
Short circuit protection, Thermal shutdown
Non standard outputs available as specials
between 1.5V ~15V
Low ripple and noise
“L” version with 90° pins
See Positive to Negative Converter
Application Note for use as a voltage
inverter (alternative to LM79xx Linear)
INNOLINE
DC/DC-Converter
R-78Bxx-
1.0(L)
Series
1.0 AMP
SIP3
Single Output
Selection Guide
Part
Number
SIP3
R-78B1.5-1.0
R-78B1.8-1.0
R-78B2.5-1.0
R-78B3.3-1.0
R-78B5.0-1.0
R-78B6.5-1.0
R-78B9.0-1.0
R-78B12-1.0
R-78B15-1.0
Input
Range (1)
(V)
4.75 – 26
4.75 – 26
4.75 – 34
4.75 – 34
6.5 – 34
9.0 – 34
12 – 34
16 – 34
20 – 34
Output
Voltage
(V)
1.5
1.8
2.5
3.3
5.0
6.5
9.0
12
15
Output
Current
(A)
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Efficiency
Min. Vin
Max. Vin
(%)
(%)
77
80
85
89
93
94
95
96
97
71
74
78
83
88
90
93
95
96
* add Suffix “L” for 90° bent pins, e.g. R-78B5.0-1.0L
Note 1: 1.5V, 1.8V Output can be unstable with Vin>26VDC
Description
The R-78Bxx-Series high efficiency switching regulators are ideally suited to replace 78xx linear regulators
and are pin compatible. The efficiency of up to 97% means that very little energy is wasted as heat so there
is no need for any heat sinks with their additional space and mounting costs. The L-Version with 90° pins
allows direct replacement for laid-flat regulators where component height is at a premium. Low ripple and
noise figures and a short circuit input current of typically only 10mA round off the specifications of this ver-
satile converter series.
Derating-Graph
(Ambient Temperature)
120
100
80
60
40
20
0
Output Power (%)
Safe Operating Area
-40
0
25
50
Operating Temperature (°C)
85
75
100
71
www.recom-international.com
13-February-2007
1
RECOM [ RECOM INTERNATIONAL POWER ]
