Datasheet
cui.com
CUI Inc │ SERIES: PDS1-M │ DESCRIPTION: DC-DC CONVERTER date 10/03/2014 │ page 6 of 8
EMC RECOMMENDED CIRCUIT
Vin
GND
+Vo
0V
EUT
LOAD
LDM
C0
Vin
GND
TEST CONFIGURATION
DC
Cin
Lin
DC
Lo
ad
Oscilloscope
Current
Probe
Note: Input reected-ripple current is measured with an inductor Lin and Capacitor Cin to simulate source impedance.
DERATING CURVES
100
80
60
40
20
Ambient Temperature (°C)
Load (%)
-40-20 0204060
80 105 120
Temperature Derating Curve
Safe operating area
100
10 20 30 40 50 60 70 80 90 100
10
-10
0
2.5
5
7.5
-2.5
-5
-7.5
Typical Load Line
Rated Output Voltage
2.5
-2.5
-7.5
Output Current Percentage (%)
(Nominal Input Voltage)
Tolerance Envelope Curve
Output Voltage Accuracy (%)
Recommended external circuit
components
Vin
(Vdc)
C0 LDM
3.3 4.7μF/50V 6.8μH
5 4.7μF/50V 6.8μH
12 4.7μF/50V 6.8μH
15 4.7μF/50V 6.8μH
24 4.7μF/50V 6.8μH
External components
Lin 4.7μH
Cin
220μF, ESR < 1.0Ω at
100 kHz
Figure 1
Figure 2
Table 1
Table 2
Vin
GND
+Vo
EUT LOAD
LDM
C0
Vin
GND
-Vo
Single Outputs
Dual Outputs
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