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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

LO AD

LDM

C0

Vin

GND

TEST CONFIGURATION

DC

Cin

Lin

DC

Load

Oscilloscope

Current

Probe

Note: Input reflected-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)

-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

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

For more information, please visit the product page.