PO
www.recom-international.com
August 2002
POWERLINE - DC/DC-Converter
O-Series, 20 Watt, Open Frame, Non-Isolated (Single Output)
Non-Isolated Output
Remote On/Off
High Efficiency up to 84%
Output Over Current Protection
Small 63.5 x 14.0 mm Package
Remote Sense (Option)
Power ok Signal (Option)
Horizontal Mounting (Suffix "H"
Option)
Features
Part Number
Input
Output
Output
Efficiency
Range
Voltage
Current
VDC
VDC
mA
(%)
RP20-0533SO
4.5-5.5
3.3
6000
84
RP20-0525SO
4.5-5.5
2.5
6000
79
RP20-0521SO
4.5-5.5
2.1
6000
77
RP20-0518SO
4.5-5.5
1.8
6000
73
RP20-0515SO
4.5-5.5
1.5
6000
70
Selection Guide
Specifications
(typical at nominal input and 25C unless otherwise noted)
Input Voltage Range
4.5-5.5VDC
Input Current (V
IN
= 0-5V, Io = 6A)
6.1A max.
Input Reflected Ripple Current
6.25 mAp-p typ.
(5Hz-20MHz, 500H source impedance)
Remote On/Off Signal (ref. to GND pin)
Logic Low
1V
(on/off pin open) = power on
Logic High
3.2V min./6V max.
(on/off pin >3.3V) = power off
Turn-On-Time
5ms typ./8ms max.
(Io = 80% of I
O
, max.; V
o
within 1% of steady state)
Set Point Accuracy ( V
IN
= 5V; Io = 6A; TA = 25C)
1% max.
Output Voltage Trim Range
10% max.
Line Regulation (Io = 4.5V-5.5V)
0.3% typ./0.5% max.
Load Regulation (Io = 0-6A)
0.3% typ./0.5% max.
Output Ripple and Noise (20MHz,BW)
RMS
30mVrms max.
Peak-to-Peak
100mVp-p max.
Output Current-Limit
0A min./6A max.
(forced convention, 1.5ms
-1
(300lfm)
Output Current-Limit
Latching
Transient Response
Peak Deviation
80mV
(Io /t = 1A/10s, Vi = 5.0V, TA = 25C,
Setting Time (Vo<10% peak dev.)
200s
see fig. 3) Load change from Io = 0%-100%
or 100%-0% of Io max.
Peak Deviation
80 mV
Setting Time (V
o
< 10% peak deviation)
200s
External Load Capacitance
min. 0 F min./10000 F max.
Power ok Signal
Lower Sense Threshold,
-16% min./+10% max.
(asserts "hi" when Vout is between following
%V Setpoint
thresholds (option)
Upper Sense Threshold,
+10% min./+16% max.
%V Setpoint
Power ok Signal Reference
Common Ground
Continued next page
10 k
Trimpot
Pin10
Pin 2
Pin 5
Pin 10
Pin 2
Pin 5
Trim
Up
Trim
Down
Efficiency (%)
% of Rated Load
20
40
60
80
83
85
87
89
Vi = 4.5V
Vi = 5.0V
Vi = 5.5V
100
Output Current,
Io(A)
(5 A/div)
Time t (100 s/div)
Output V
o
ltage,
V
o
(V)
(50mV/div)
Fig. 1: External Output Trimming
Fig. 2: RP20-0533SO Typical Efficiency
at Room Temperature
Fig. 2: Typical transient response to step load
change from 0% to 100% of Io, max. at
room temperature and 5V input (waveform
averaged to eliminate ripple component.
PO
www.recom-international.com
August 2002
Specifications, Continued
(typical at nominal input and 25C unless otherwise noted)
Pin Connections
Pin #
Function
1
+Vout
2
+Vout
3
Opt. Remote
Sense(+) or No Pin
4
+Vout
5
GND
6
GND
Pin #
Function
7
+Vin
8
+Vin
9
Opt. Power ok
or No Pin
10
TRIM
11
Remote On/Off
Package Style and Pinning (mm)
Pin Pitch Tolerance 0.35 mm
6.1
max.
2.79
= =
48.26
7 8 9 10 11
1 2 3 4 5
DC-DC Power SIP
2.54
7.1
63.5
14.0
3.0
6
0.64
square pins
48.26
7 8 9 10 11
1 2 3 4 5
DC-DC Power SIP
2.54
7.1
63.5
14.0
6
6.9
2.3
0.64
square
3.0
Ambient Temperature ( C)
-25 0 15
Output Current (A)
2
0
3
4
5
6
7
1
Natural Convection
Cooling
200LFM
100LFM
300LFM
35 45 55 65 75 85
25
Remote Sense (option)
0.25VDC typ.
Switching Frequency
500kHz, typ.
Isolation Voltage
Non-Isolated
Operating Temperature Range
-25C to +85C (see graph)
Storage Temperature Range
-55C to +100C
Temperature Coefficient
0.02%/C
Over Temperature Protection
125C typ.
Dimensions
63.5 x 14.0 x 6.1 mm
MTBF (Io =80% of Io, max; TA = 25C)
1.4 x 10
6
Hours
POWERLINE - DC/DC-Converter
O-Series, 20 Watt, Open Frame, Non-Isolated (Single Output)
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