TSM108

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12. Measured Performances

The few following curves show the measured

performances of TSM108 used in DC/DC step

down converter, either with a Pchannel MOSFET

or with a PNP bipolar transistor.

12.1. Voltage and Current Control, Efficiency Performances using a Pchannel MOSFET:

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Iout (A)

0

1

2

3

4

5

6

7

0%

10%

20%

30%

40%

50%

60%

70%

CV & CC Regulation - Switching duty cycle vs Iout

Vin = 12V, Vout = 6V, Iout = 600mA

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

Iout (A)

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Converter efficiency & Switching duty cycle vs Iout

Vin = 12V, Vout = 6V, Iout = 600mA

5

10

15202530

35

Vin (V)

5.992

5.993

5.994

5.995

5.996

5.997

5.998

5.999

6

6.001

77%

78%

79%

80%

81%

82%

83%

84%

85%

86%

Vout & Efficiency versus Vin

Vout = 6V, Iout = 600mA