Features
Unregulated
Converters
Selection Guide
Part
Number
SMD
RQS-xx1.8
RQS-xx3.3
RQS-xx05
RQS-xx09
RQS-xx12
RQS-xx15
RQS-xx24
RQD-xx1.8
RQD-xx3.3
RQD-xx05
RQD-xx09
RQD-xx12
RQD-xx15
●
●
●
●
●
1kVDC Isolation
Internal SMD Construction
UL94V-0 Package Material
Optional Continuous Short Circuit Protected
Efficiency to 80%
ECONOLINE
DC/DC-Converter
RQS
&
RQD
Series
0.25 Watt
SMD
Single
&
Dual
Output
Input
Voltage
(VDC)
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
1.8, 3.3, 5, 9, 12, 15, 24
Output
Voltage
(VDC)
1.8
3.3
5
9
12
15
24
±1.8
±3.3
±5
±9
±12
±15
Output
Current
(mA)
139
76
50
28
21
17
10
±70
±38
±25
±14
±11
±9
Efficiency
(%)
70
65-70
66-72
70-72
70-72
70-76
70-80
70
65-70
66-72
70-72
70-72
70-76
70-80
** add suffix -R for tape&reel packing e.g.
RQS-051.8-R
. For more details and dimensi-
ons of the tapes and reels see page 334 to 336.
±10%
±5%
RQD-xx24
1.8, 3.3, 5, 9, 12, 15, 24
±24
±5
xx = Input Voltage
* add Suffix “P” for Continuous Short Circuit Protection, e.g.
RQS-051.8/P, RQD-051.8/P
Specifications
(Core Operating Area)
Input Voltage Range
Output Voltage Accuracy
Line Voltage Regulation
Load Voltage Regulation
(10% to 100% full load)
Output Ripple and Noise (20MHz limited)
Operating Frequency
Efficiency at Full Load
No Load Power Consumption
Isolation Voltage
Rated Working Voltage
Isolation Capacitance
Isolation Resistance
Short Circuit Protection
P-Suffix
Operating Temperature Range (free air convection)
Storage Temperature Range
Reflow Temperature
Relative Humidity
Package Weight
MTBF (+25°C)
(+85°C)
(tested for 1 second)
(long term isolation)
1.8V, 3.3V output types
5V output type
9V, 12V, 15V, 24V output types
1.2%/1% of Vin typ.
20% max.
15% max.
10% max.
100mVp-p max.
50kHz min. / 100kHz typ. / 105kHz max.
65% min. / 75% typ.
45mW min. / 75mW typ. / 105mW max.
1000VDC min.
see Application Notes
25pF min. / 82pF max.
10 GΩ min.
1 Second
Continuous
-40°C to +85°C (see Graph)
-55°C to +125°C
ROHS compliant
245°C (30 sec) max.
(for more details see Application Notes)
RQS types
RQD types
95% RH
1.5g
2.2g
1345 x 10
3
hours
310 x 10
3
hours
11
100
80
Derating-Graph
(Ambient Temperature)
Output Power (%)
60
40
20
0
Safe Operating Area
-40
85 100
95
Operating Temperature °C
0
50
150
}
Detailed Information see
Application Notes chapter "MTBF"
using MIL-HDBK 217F
using MIL-HDBK 217F
www.recom-international.com
07-May-2007
ECONOLINE
DC/DC-Converter
Typical Characteristics
RQS
&
RQD
Series
RQS/RQD-xx09
Efficiency / Load
100
80
60
40
RQS/RQD-xx05
Efficiency / Load
100
80
60
40
0505
1205
1209
3.309
Efficiency %
Efficiency %
20
0
20
0
0509
3.305
0%
20%
40%
60%
80%
100%
0%
20%
40%
60%
80%
100%
Total Output current (%)
Total Output current (%)
Deviation / Load
25.000
20.000
25.000
20.000
Deviation / Load
Deviation from Nominal (%)
15.000
10.000
5.000
0.000
-5.000
-10.000
Deviation from Nominal (%)
0505
3.305
15.000
10.000
5.000
0.000
-5.000
-10.000
0509
3.309
1205
1209
0% 20%
40%
60%
Total Output current (%)
80%
100%
0% 20%
40%
60%
Total Output current (%)
80%
100%
RQS/RQD-xx12
Efficiency / Load
100
80
60
40
RQS/RQD-xx15
Efficiency / Load
100
80
60
40
1212
3.312
0515
Efficiency %
Efficiency %
0512
20
0
20
0
1215
0%
20%
40%
60%
80%
100%
0%
20%
40%
60%
80%
100%
Total Output current (%)
Total Output current (%)
Deviation / Load
25.000
20.000
25.000
20.000
Deviation / Load
Deviation from Nominal (%)
15.000
10.000
5.000
0.000
-5.000
-10.000
Deviation from Nominal (%)
0512
3.312
15.000
10.000
5.000
0.000
-5.000
-10.000
0515
1212
1215
0% 20%
40%
60%
Total Output current (%)
80%
100%
0% 20%
40%
60%
Total Output current (%)
80%
100%
12
07-May-2007
www.recom-international.com
RQS
&
RQD
Series
Package Style and Pinning (mm)
8 PIN SMD Package
3rd angle
projection
12.75
12.10
5.35
1.65
2.54 x 3
7.30
8.15
7.90
8
5
RECOM
RQS-xxxx
xxxx
7.40
9.00
11.10
1 2
4
Pin Connections
Pin #
Single
–Vin
+Vin
–Vout
+Vout
1.20
Recommended Footprint Details
8
5
4
1.80
1
2
4
5
Bottom View
12.00
0.55
Top View
1 2
2.54
1.20
8
NC
NC = No Connection
XX.X ± 0.5 mm
XX.XX ± 0.25 mm
10 PIN SMD Package
15.24
14.70
5.35
1.65
2.54x4
7.30
8.15
7.90
10
7
RECOM
RQD-xxxx
xxxx
7.40
9.00
11.10
1 2
4 5
Pin Connections
Pin #
Dual
–Vin
+Vin
Com
–Vout
+Vout
Recommended Footprint Details
0.55
Bottom View
1{
2
4
12.00
1.20
10
Top View
7
5
7
1 2
4 5
1.80
2.54
1.20
10
NC
NC = No Connection
XX.X ± 0.5 mm
XX.XX ± 0.25 mm
www.recom-international.com
07-May-2007
13
