KMP_78253C_D04 Page 3 of 5

78253 Series

MAX253 Compatible Converter Transformers

www.murata-ps.com/support

TYPICAL CHARACTERISTICS (VOLTAGE CURVES)

VOLTAGE CURVES

Output Current (mA)

Output Current (mA)

Output Current (mA)

Output Current (mA)

EFFICIENCY CURVES

Output Current (mA)

Output Current (mA)

Output Current (mA)

Output Current (mA)

All curves are derived from testing with the Maxim MAX235 IC using the circuit shown in application note MPAN-03 ( download at http://www.murata-ps.com/data/apnotes/mpan-03.pdf).

10

8

6

4

2

0

0

20

40

60

80

100

120

78253/35(M)C

400

78253/55(M)C

10

8

6

4

2

0

0

100

200

300

78253/35(M)VC

10

8

6

4

2

0

0

20

40

60

100

80

78253/55(M)VC

10

8

6

4

2

0

0

100

200

300

400

78253/35(M)C

100

80

60

40

20

0

0

20

40

60

120

80

100

78253/55(M)C

100

80

60

40

20

0

0

200

400

300

100

78253/35(M)VC

0

20

40

60

100

80

100

80

60

40

20

0

78253/55(M)VC

100

80

60

40

20

0

0

200

400

300

100