Datasheet

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CUI Inc │ SERIES: PDS2-M │ DESCRIPTION: DC-DC CONVERTER date 08/13/2015 │ page 5 of 7
EMC RECOMMENDED CIRCUIT
Recommended external circuit components
Vin
(Vdc)
C1 C2 CY
1
LDM
5 4.7μF/50V 4.7μF/50V -- 6.8μH
12 4.7μF/50V 4.7μF/50V -- 6.8μH
15 4.7μF/50V 4.7μF/50V -- 6.8μH
24 4.7μF/50V 4.7μF/50V 1nF/2kV 6.8μH
Vin
GND
+Vo
0V
DC/DC
LO AD
LD M
C1
CY
Vin
GN
D
Cout
C2
DERATING CURVES
Ambient Temperature (°C)
Load (%)
-40
50
60
80
100
40
20
-20 02040608571 105 120
Temperature Derating Curve
Safe operating area
5 Vdc output models
all other models
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
1.0
-7.5
Output Current Percentage (%)
(Nominal Input Voltage)
Tolerance Envelope Curve (3.3Vdc output model)
Output Voltage Accuracy (%)
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 (all other output models)
Output Voltage Accuracy (%)
-15
Figure 1
Table 1
Rated Output Voltage
Output Current Percentage (%)
(Nominal Input Voltage)
Tolerance Envelope Curve
(all other models)
Output Voltage Accuracy (%)
10 20 40 60 80 100
10
0
5
-5
Rated Output Voltage
1.0
-7.5
-15
Output Current Percentage (%)
(Nominal Input Voltage)
Tolerance Envelope Curve
(3.3 Vdc output only)
Output Voltage Accuracy (%)
Typical Load Line
-10
-15
10 20 40 60 80 100
10
0
5
-5
2.5
-2.5
Typical Load Line
-10
-15
-7.5
Max
Max
Min
Min
Note: 1.CYof1nF/2kVrequiredforPDS2-S12-S24-M
2. See Table 2 for Cout values
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