Datasheet

www.recom-international.com 1
13-February-2007
1.0 AMP
SIP3
Single Output
INNOLINE
DC/DC-Converter
R-78Bxx-
1.0(L)
Series
● 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)
Features
Selection Guide
Part Input Output Output Efficiency
Number Range (1) Voltage Current Min. Vin Max. Vin
SIP3 (V) (V) (A) (%) (%)
R-78B1.5-1.0 4.75 – 26 1.5 1.0 77 71
R-78B1.8-1.0 4.75 – 26 1.8 1.0 80 74
R-78B2.5-1.0 4.75 – 34 2.5 1.0 85 78
R-78B3.3-1.0 4.75 – 34 3.3 1.0 89 83
R-78B5.0-1.0 6.5 – 34 5.0 1.0 93 88
R-78B6.5-1.0 9.0 – 34 6.5 1.0 94 90
R-78B9.0-1.0 12 – 34 9.0 1.0 95 93
R-78B12-1.0 16 – 34 12 1.0 96 95
R-78B15-1.0 20 – 34 15 1.0 97 96
Output Power (%)
120
100
20
60
100750
-40
Operating Temperature (°C)
0
80
5025
71
Safe Operating Area
85
40
Derating-Graph
(Ambient Temperature)
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.
Description
* 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