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CUI Inc

│ SERIES: PYB10-DIN │ DESCRIPTION: DC-DC CONVERTER

date

08/15/2013 │ page 5 of 6

1.

Recommended circuit

This series has been tested according to the following recommended testing circuit before leaving the factory. This series should be

tested under load (see Figure 3). If you want to further decrease the input/output ripple, you can increase the capacitance accord-

ingly or choose capacitors with low ESR (see table 3). However, the capacitance of the output filter capacitor must be appropriate. If

the capacitance is too high, a startup problem might arise. For every channel of the output, to ensure safe and reliable operation, the

maximum capacitance must be less than the maximum capacitive load (see Table 4).

APPLICATION NOTES

Figure 3

Table 3

Table 4

Vin

(Vdc)

Cin

(μF)

Cout

(μF)

24

10~47

10

48

10~47

10

Notes:

1. Minimum load shouldn't be less than 5%, otherwise ripple may increase dramatically. Operation under minimum load will not damage the converter, however, they may

not meet all specifications listed.

2. Maximum capacitive load is tested at input voltage range and full load.

3. All specifications are measured at Ta=25°C, humidity<75%, nominal input voltage and rated output load unless otherwise specified.

Vin

GND

+Vo

0V

DC

Cin

DC

Cout

Cout

-Vo

Dual O utput

Single Output

Vin

GND

+Vo

0V

DC

Cin

DC

Cout

Single

Vout

(Vdc)

Max.

Capacitive

Load

(μF)

Dual

Vout

(Vdc)

Max.

Capacitive

(μF)

3.3

2200

--

--

5

2200

5

680

12

12

15

15

100

24

100

--

--

Notes:

1. 330 μF for 48Vin.

2. 220 μF for 48Vin.

3. 150 μF for 48Vin.

4. For each output.

For more information, please visit the product page.