R-78E-1.0 Datasheet, PDF (1/3 Pages) Recom International Power – 1.0 AMP SIP3 Single Output

Features
Switching
Regulator
• 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)
• Short Circuit Protection
DC/DC Converter
R-78E-1.0
Description
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.
1.0 AMP
SIP3
Single
Output
3^{3 YEAR}
warranty
Selection Guide
Part
Number
R-78E3.3-1.0
R-78E5.0-1.0
Input
Voltage Range
(VDC)
7 - 28
8 - 28
Output
Voltage
(VDC)
3.3
5.0
Output
Current
(mA)
1000
1000
Efficiency
typ @ min Vin.
(%)
87
91
Max. Capacitive
Load
(µF)
220
220
Specifications (measured at TA= 25°C, full load, nominal input voltage and after warm-up)
BASIC CHARACTERISTICS
Parameter
Condition
Input Voltage Range
3.3V
5.0V
Input Current
min. Vin
No Load Input Current
typ. Vin
Operating Frequency
Vin= 12VDC
Output Ripple and Noise typ. Vin, full load and 20MHz BW limited
Min.
7VDC
8VDC
1.5mA
Typ.
24VDC
1.5mA
330kHz
Max.
28VDC
1000mA
120mVp-p
Efficiency vs. Load
R-78E3.3-1.0
100
R-78E5.0-1.0
100
95
95
90
90
85
85
80
7V
8V
80
12V
24V
75
12V
24V
28V
28V
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)
IEC60950-1 Certified
EN60950-1 Certified
www.recom-power.com
REV.: 2/2016
I-1