R-78Exx-0.5 Series Datasheet by Recom Power

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www.recom-power.com REV.: 5/2019 I-1
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
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.
DC/DC Converter
0.5 Amp
SIP3
Single Output
IEC60950-1 certified
EN60950-1 certified
Specifications (measured @ Ta= 25°C, full load, nominal input voltage and after warm-up)
BASIC CHARACTERISTICS
Parameter Condition Min. Typ. Max.
Input Voltage Range nom. Vin = 24VDC 6VDC 24VDC 28VDC
Quiescent Current 1.5mA
Minimum Load (3) 2%
Internal Operating Frequency 570kHz
Output Ripple and Noise (4) 20MHz BW 3.3, 5, 9Vout
12, 15Vout
50mVp-p
70mVp-p
continued on next page
Selection Guide
Part Input Output Output Efficiency (1) Max. Capacitive
Number Voltage Range Voltage Current @ min Vin @max. Vin Load (2)
[VDC] [VDC] [A] [%] [%] [µF]
R-78E3.3-0.5 6-28 3.3 0.5 75 88 220
R-78E5.0-0.5 7-28 5 0.5 82 92 220
R-78E9.0-0.5 12-28 9 0.5 89 94 220
R-78E12-0.5 15-28 12 0.5 92 95 220
R-78E15-0.5 18-28 15 0.5 93 95 220
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
Note4: Measurements are made with a 100nF MLCC across output (low ESR)
Notes:
Note1: Efficiency is tested at nom. input voltage and full load
Note2: Max. Cap Load is tested by nominal input and full resistive load
Model Numbering
Output Voltage Output Current
R-78E__-0.5
REEDM R-78E5.0-D.5 EL 3:335
www.recom-power.com REV.: 5/2019 I-2
DC/DC Converter
Specifications (measured @ Ta= 25°C, full load, nominal input voltage and after warm-up)
R-78E-0.5
Series
ENVIRONMENTAL
Parameter Condition
Value
Operating Temperature Range natural convection and with derating (see graph) -40°C to +85°C
Maximum Case Temperature 100°C
Vibration 10-55Hz, 2G, 30min along X,Y,Z
MTBF according to MIL-HDBK-217F, G.B. +25°C
+70°C
7976 x 103 hours
2182 x 103 hours
-40 -20 0 20 40 70
85
60-30 -10 10 30 50 80 90 100
100
80
60
40
90
70
50
30
20
10
0
Output Load [%]
Ambient Temperature [°C]
Derating Graph
REGULATIONS
Parameter
Condition
Value
Output Accuracy ±3.0% typ.
Line Regulation low line to high line, full load ±0.5% typ.
Load Regulation 10% to 100% load ±1.0% typ.
PROTECTIONS
Parameter Condition Value
Short Circuit Protection (SCP) continuous, automatic recovery
Efficiency vs Load R-78E5.0-0.5
0 10 20 30 40 50 60 70 80 90 100
100
80
60
40
90
70
50
30
20
10
0
Efficiency [%]
Output Load [%]
7Vin
12Vin
24Vin
28Vin
R?V‘.HM
www.recom-power.com REV.: 5/2019 I-3
DC/DC Converter
Specifications (measured @ Ta= 25°C, full load, nominal input voltage and after warm-up)
R-78E-0.5
Series
SAFETY AND CERTIFICATIONS
Certificate Type (Safety) Report / File Number Standard
Information Technology Equipment, General Requirements for Safety
1603123 IEC60950-1:2005, 2nd Edition + AM 2:2013
EN60950-1:2006 + AM2:2013
EAC RU-AT.49.09571 TP TC 004/2011
RoHs 2+ RoHS 2011/65/EU + AM2015/863
EMC Compliance Condition Standard / Criterion
Electromagnetic compatibility of multimedia equipment -
Emission requirements
with external filter
(see filter suggestion below) EN55032, Class A and B
DIMENSION and PHYSICAL CHARACTERISTICS
Parameter Condition Value
Material case
potting
non-conductive black plastic, (UL94 V-0)
silicone, (UL94 V-0)
Package Dimension (LxWxH) 11.6 x 8.5 x 10.4mm
Package Weight 2g typ.
EMC Filter Suggestion according to EN55032
R-78Exx-0.5
C
1
C
2
GND
+V
out
+V
in
GND
+V
out
GND
+V
in
L
1
Component List Class A Component List Class B
MODEL C1 C2 L1
R-78E3.3-0.5 10µF
100V MLCC
4.7µF
50V MLCC
12µH choke
RLS-126
R-78E15-0.5
MODEL C1 L1
R-78E3.3-0.5 4.7µF
50V MLCC
3.9µH choke
RLS-397
R-78E15-0.5
Bottom View
Top View
embossed logo
321 321
2.00
8.511.6
0.50+0.10/-0.05
3.215.08
10.44.10
0.51
0.25±0.05
Marking
2.54
2.54
Dimension Drawing (mm)
Pin Connections
Pin # Function
1 +Vin
2 GND
3 +Vout
Tolerance: xx.x= ±0.50mm
xx.xx= ±0.25mm
Recommended Footprint Details
Notes:
Note5: Filter suggestions are valid for indicated part numbers only. For other part numbers, please contact RECOM tech support for advice
www.recom-power.com REV.: 5/2019 I-4
DC/DC Converter
Specifications (measured @ Ta= 25°C, full load, nominal input voltage and after warm-up)
R-78E-0.5
Series
INSTALLATION AND APPLICATION
PACKAGING INFORMATION
Parameter Type Value
Packaging Dimension (LxWxH) tube 520.0 x 11.2 x 18.2mm
Packaging Quantity 42pcs
Storage Temperature Range -55°C to +125°C
10µF MLCC
(optional)
10µF MLCC
(optional)
C1 C2
+VIN
GND
+VOUT
GND
R-78Exx-0.5
Standard Application
Notes:
Note6: The R-78Exx-0.5 can not be used as positive to negative converter
The
product information and specifications may be subject to changes even without prior written notice.The product has been designed for various applications; its suitability lies in the responsibility of each customer.
The
products
are not authorized for use in safety-critical applications without RECOM’s explicit written consent. A safety-critical application is an application where a failure may reasonably be expected to endanger or
cause
loss
of life, inflict bodily harm or damage property. The applicant shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the
unauthorized
use of RECOM products in such safety-critical applications.

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