EC 8 www.recom-international.comAugust 2002
Selection Guide
ECONOLINE - DC/DC-Converter
RQS / RQD Series, 0.25 Watt, SMD (Single & Dual Output)
Specifications (Core Operating Area) and Operating Temperature / Derating-Graph
Part Input Output Output Efficiency
Number Voltage Voltage Current
SMD (VDC) (VDC) (mA) (%)
RQS-XX1.8/0.25 1.8, 3.3, 5, 9, 12, 15, 24 1.8 139 70
RQS-XX3.3/0.25 1.8, 3.3, 5, 9, 12, 15, 24 3.3 76 70
RQS-XX05/0.25 1.8, 3.3, 5, 9, 12, 15, 24 5 50 70
RQS-XX09/0.25 1.8, 3.3, 5, 9, 12, 15, 24 9 28 71
RQS-XX12/0.25 1.8, 3.3, 5, 9, 12, 15, 24 12 21 72
RQS-XX15/0.25 1.8, 3.3, 5, 9, 12, 15, 24 15 17 72
RQS-XX24/0.25 1.8, 3.3, 5, 9, 12, 15, 24 24 10 73
RQD-XX1.8/0.25 1.8, 3.3, 5, 9, 12, 15, 24 ±1.8 ±70 70
RQD-XX3.3/0.25 1.8, 3.3, 5, 9, 12, 15, 24 ±3.3 ±38 70
RQD-XX05/0.25 1.8, 3.3, 5, 9, 12, 15, 24 ±5 ±25 70
RQD-XX09/0.25 1.8, 3.3, 5, 9, 12, 15, 24 ±9 ±14 71
RQD-XX12/0.25 1.8, 3.3, 5, 9, 12, 15, 24 ±12 ±11 72
RQD-XX15/0.25 1.8, 3.3, 5, 9, 12, 15, 24 ±15 ±9 72
RQD-XX24/0.25 1.8, 3.3, 5, 9, 12, 15, 24 ±24 ±5 73
Input Voltage ±10%
Input Filter Capacitor Type
Output Voltage Accuracy ±5%
Line Voltage Regulation 1.2% typ./1% V Input
Load Voltage Regulation 1.8V, 3.3V output types 20% max.
(10% to 100% full load) 5V output types 15% max.
9V-24V output types 10% max.
Ripple and Noise (20MHz limited) 100mVp-p max.
Efficiency at Full Load 65% min.
Isolation Voltage 1.000VDC min.
Isolation Resistance (Viso = 500VDC) 10 GΩmin.
Isolation Capacitance 25pF min./82pF max.
Short Circuit Protection 1 Second
Switching Frequency at Full Load 100kHz typ.
Operating Temperature -40°C to +85°C* (see Graph)
Storage Temperature -55°C to +125°
Package Weight Single output types 1.5g
Dual output types 2.2g
●1kVDC Isolation
●Efficiency to 73%
●UL 94V-0 Package Material
●Toroidal Magnetics
●Internal SMD Construction
Output Power (Watts)
0.500
0.375
0.125
0.250
100500-40
85 125
150
Operating Temperature ˚C
Save Operating Area
0
Features
www.recom-international.com EC 9August 2002
ECONOLINE - DC/DC-Converter
RQS / RQD Series, 0.25 Watt, SMD (Single & Dual Output)
Package Style and Pinning (mm)
12.00
1.80
1.20
10 7
2415
RQD-0505
RECOM
****
0.50±0.5
2.54
RQS-0505
RECOM
0.50±0.5
2.57
2.54 x 4
15.24
5.40
1.65
0.20
14.70
2.54 x 3
12.75
5.35
1.65
0.20
12.10
12.00
1.80
1.20
85
241
11.10
9.00
7.90
8.20
7.40
XX.X ± 0.5 mm
XX.XX ± 0.25 mm
3rd angle
projection
Pin Connections
Pin # Single Dual
1 –Vin –Vin
2 +Vin +Vin
4–Vout Com
5+Vout –Vout
7No Pin +Vout
8NC No Pin
10 No Pin NC
NC = No Connection
SMD Package
Recommended Footprint Details
