• Efficiency up to 91%, no need for heatsinks!
• Pin-out compatible with LM78XX Linear Regs.
• Low profile (L*W*H=11.6*8.5*10.4mm)
• Wide input range (7V - 28V)
Features
DC/DC Converter
Switching
Regulator
• Short Circuit Protection
R-78E-1.0
1.0 AMP
SIP3
Description
3
The R-78E series is a switching regulator module that has been designed to offer all the advantages of a
switching regulator (high efficiency, wide input range, accurate output voltage regulation) but with a low
cost for production quantities. Due to the R-78E’s high efficiency of up to 91% at an output voltage of
5V/1A at the output, no heat sink is required. The compact TO- 220 compatible SIP3 package measures
only 11.6 x 8.5 x 10.4 mm, so it saves precious board space. The warranty is 3 years.
Single
Output
Selection Guide
Part
Number
Input
Voltage Range
(VDC)
Output
Voltage
(VDC)
Output
Current
(mA)
Efficiency
typ @ min Vin.
(%)
Max. Capacitive
Load
(µF)
R-78E3.3-1.0
R-78E5.0-1.0
7 - 28
8 - 28
3.3
5.0
1000
1000
87
91
220
220
Specifications (measured at T = 25°C, full load, nominal input voltage and after warm-up)
A
BASIC CHARACTERISTICS
Parameter
Condition
Min.
7VDC
8VDC
Typ.
Max.
28VDC
1000mA
3.3V
5.0V
Input Voltage Range
24VDC
Input Current
min. Vin
typ. Vin
1.5mA
No Load Input Current
Operating Frequency
Output Ripple and Noise
1.5mA
Vin= 12VDC
330kHz
IEC60950-1 Certified
EN60950-1 Certified
typ. Vin, full load and 20MHz BW limited
120mVp-p
Efficiency vs. Load
R-78E3.3-1.0
R-78E5.0-1.0
100
95
100
95
90
90
85
85
80
7V
8V
12V
24V
28V
12V
24V
28V
80
75
75
70
0
0.2
0.4
0.6
0.8
1.0
0
0.2
0.4
0.6
0.8
1.0
Output Current (A)
Output Current (A)
www.recom-power.com
REV.: 2/2016
I-1
RECOM [ RECOM INTERNATIONAL POWER ]
