R-78E-0.5 Datasheet, PDF (1/3 Pages) Recom International Power – 500mA SIP3 Single Output

Features
Switching
Regulator
• Low Cost Switching Regulator
• High Start-up Current Capability
• Efficiency up to 95%
• Short Circuit Protection
• Pin Compatible with 78 Series Regulators
• Non Isolated DC-DC Converter
• IEC/EN60950-1, Am2 Certified
DC/DC Converter
R-78E-0.5
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 95% no heat-sink is required.
The compact TO-220 compatible SIP3 package measures only 11.6 x 8.5 x 10.4mm, so it saves
precious board space.
Selection Guide
Part
Number
R-78E3.3-0.5
R-78E5.0-0.5
R-78E9.0-0.5
R-78E12-0.5
R-78E15-0.5
Input
Voltage Range
[VDC]
6-28
7-28
12-28
15-28
18-28
Output
Voltage
[VDC]
3.3
5
9
12
15
Output
Current
[mA]
500
500
500
500
500
Efficiency
typ⁽¹⁾
[%]
75-88
82-92
89-94
92-95
93-95
Notes:
Note1: test by maximum/minimum input, full load and @25°C.
Note2: test by minimum input and constant resistive load.
Max. Capacitive
Load⁽²⁾
[µF]
220
220
220
220
220
500mA
SIP3
Single
Output
3^{3 YEAR}
warranty
Specifications (measured @ ta= 25°C, full load, nominal input voltage and after warm-up)
BASIC CHARACTERISTICS
Parameter
Condition
Min.
Typ.
Max.
Nominal Input Voltage
24VDC
Input Current
@ no load
1.5mA
Minimum Load ⁽³⁾
2%
Operating Frequency
570kHz
Output Ripple and Noise 20MHz bandwidth ^{3.3, 5, 9Vout}
12, 15Vout
50mVp-p
70mVp-p
Notes:
Note3: recommend to use with more than 2% load, if not, the ripple of the product may exceeds the

specification, but doesn’t affect the reliability of the product.
IEC60950-1 Certified
EN60950-1 Certified
Efficiency vs Load
100
90
80
70
60
50
40
30
20
10
0
0
R-78E5.0-0.5
7Vin
12Vin
24Vin
28Vin
0.1
0.2
0.3
0.4
0.5
Load Current [A]
www.recom-power.com
REV.: 0/2016
I-1