RSG Electronic Components GmbH
Sprendlinger Landstr. 115
D-63069 Offenbach, Germany
Tel. +49 69 984047-0
Fax +49 69 984047-77
info@rsg-electronic.de
www.rsg-electronic.de
(1) These are stress ratings. Exposure of devices to any of these conditions may adversely affect long-term reliability. (2) 1.5 mm from case 10 sec max.
All specifications typical at TA = 25 °C, nominal input voltage and full load unless otherwise specified.
The information and specification contained in this data sheet are believed to be correct at time of publication. However RSG accepts no responsibility for consequences arising
from printing errors or inaccuracies. Specifications are subject to change without notice.
2.0W Unregulated Single Output DC/DC Converter
Output Specifications
Voltage Accuracy
See tolerance envelope curve
Maximum Output Current
See table
Line Regulation
±1.2% max. (per ±1% Vin Change)
Load Regulation
from 10% to 100% Load: ±14% to ±15%
max.
–
Cross Regulation (Dual Output)
–
Short Circuit Protection
0.5s, max.
Ripple & Noise (20 MHz bandwidth)
150mV pk-pk max.
Temperature Coefficient
±0.03%/°C
Capacitor Load
See table
Input Specifications
Voltage Range
See table
Start-up Time
–
No-Load/Full-Load Input Current
See table
Input Filter
C/L (see filter details on following pages)
Input Reflected Ripple Current
20mA pk-pk typ.
General Specifications
Efficiency
See table typ.
I/O Isolation Voltage (60 sec)
4200VDC Qualification tested
Out1/Out2 Isolation Voltage (Dual Separate)
–
I/O Isolation Capacitance
25pF typ.
I/O Isolation Resistance
1000M Ohm, min
Switching Frequency
40 ~ 80kHz
Humidity
95% rel H
Reliability Calculated MTBF
>6.5MHrs
(MIL-HDBK-217 f )
Safety Standard(s)
IEC/EN60950-1 (designed to meet)
Environmental Specifications
Operating Temperature range
-40°C ~ +105°C (see Derating Curve)
Maximum Case Temperature
–
Storage Temperature
-55°C ~ +125°C
Cooling
Natural Convection
Physical Specifications
Case Material
Non-conductive Black Plastic (UL94V-0
rated)
Pin Material SIP Case
–
Pin Material DIP Case
0.5mm C519R-H Solder -coated
Potting Material
n.c. black plastic (UL94V-V0)
Weight SIP Case
–
Weight DIP Case
1.5g typ.
Dimensions SIP Case
–
Dimensions DIP Case
0.50“ x 0.44“ x 0.27“
Absolute Maximum Ratings (1)
Input Surge Voltage (100 ms)
3.3V Models
5V Models
5VDC max.
9VDC max.
Soldering Temperature (2)
245°C 10s max.
EMC Specifications
Radiated / Conducted Emissions
EN55032 Class B see EMI Filter
ESD
IEC 61000-4-2 Perf.Criteria A
Rad. RF IEC 61000-4-3 Perf.Criteria A
EFT
IEC 61000-4-4 Perf.Criteria A
Surge IEC 61000-4-5 Perf.Criteria A
Cond. RF IEC 61000-4-6 Perf.Criteria A
PFMF IEC 61000-4-8 Perf.Criteria A
VD/SI/VV –
RT2-S20
n 8 Pin (5) SMD Package
n ±10% Input Range
n 4200VDC High Isolation
n EMI Complies with EN55032 Class B
n Efficiency up to 81%
n High Operating Temperature Range -40°C ~ +105°C
n Short Circuit Protection Automatic Recovery
n Rated working voltage for 250Vrms and 400VDC
n Non Conductive Black Plastic Case
RoHS
Picture similar
© RSG 10/2019
Number structure RT2
RT2
Name / package
RT2 = SMT-8
(open-
frame)
4
Isolation
4 = 4.2 kV DC
03
V-input nom.
03 = 3.3 V
05 = 5 V
05
V-output
03 = 3.3 V
05 = 5 V
_
Regulation
_ = unreg.
S
Output type
S = Single
10
Power
10 = 1.00 W
20 = 2.00 W
– A
Int. Code
Logistics
Code
Model Number
Input Output
Efficiency Capacitor Load (µF)
Voltage (VDC)
Nom. (Range)
max. Current (mA)
full/no load
Voltage (V DC) Current (mA) @ Full Load
max. (%, Typ.) max.
RT2-0303S20A4 3.3 650/60
777/60
446/45
513/45
3.3 500 77 470
RT2-0305S20A4 3.3 5 400 78 470
RT2-0503S20A4 5 3.3 500 76 470
RT2-0505S20A4 5 5 400 78 470
Model Selection Guide
The models listed above are standard types. If you need special specifications or have questions regarding packing or need application support, please contact our specialists:
sales@rsg-electronic.de or +49 69-984047-0
50%
25%
75%
100%
OUTPUT POWER
-40 -20 100 1200 20 40 60 80
AMBIENT TEMPERATURE(°C)
Derating Curve
85
S.O.A.
105
DC/DC
Converter
+Vout
-Vout
+Vin
-Vin
Load
Lin
Cin
Current
Probe
DC/DC
Converter
+Vout
-Vout
+Vin
-Vin
Load
220µF/35V
D1
SMDJ6.0A
C1 D1
C1
+
3.3 Vin Models
330µF/50V SMDJ9.0A
5Vin Models
D1:Transient Voltage Suppression Diodes
DC/DC
Converter
+Vout
-Vout
+Vin
-Vin
C1
Load
L
C1
L
1206,22µF/10V 6.8µH
+Vout
-Vout
Cout
10µF
Load
Scope
Copper Strip
DC/DC
Converter
COM
Cout
10µF
Scope
Cout
0.1µF
Cout
0.1µF
Test Configurations
Input Reflected Ripple Current Test Step
Input reflected ripple current is measured through a source
inductor Lin (12μH) and a source capacitor Cin (47μF,
ESR<1.0Ω at 100kHz) at nominal input and full load.
Output Ripple & Noise Measurement Test
Use a 10μF electrolytic capacitor and 0.1μF ceramic
capacitor. The scope measurement bandwidth is 0-20MHz.
EFT & Surge Filter
Input components (C1, D1) are used to help meet surge
test requirement for the module.
EMI Filter
Input filter components (C1, L) are used to help meet
conducted emissions requirement for the module.
These components should be mounted as close as possible
to the module and all leads should be minimized to
decrease radiated noise.