Micrel, Inc.

MIC24054

October 2012

8

M9999-102512-A

Typical Characteristics (Continued)

Feedback Voltage

vs. Output Current

0.792

0.796

0.800

0.804

0.808

0

1.5

3

4.5

6

7.5

9

OUTPUT CURRENT (A)

VIN = 12V

Output Voltage

vs. Output Current

1.782

1.787

1.791

1.796

1.800

1.805

1.810

1.814

1.819

0

1.5

3

4.5

6

7.5

9

OUTPUT CURRENT (A)

VIN = 12V

Line Regulation

vs. Output Current

-1.0%

-0.5%

0.0%

0.5%

1.0%

0

1.5

3

4.5

6

7.5

9

OUTPUT CURRENT (A)

VIN = 4.5V to 19V

Switching Frequency

vs. Output Current

500

550

600

650

700

2

4

6

8

10

OUTPUT CURRENT (A)

VIN = 12V

Output Voltage (VIN = 5V)

vs. Output Current

3.0

3.4

3.8

4.2

4.6

5.0

0

2

4

6

8

10

12

OUTPUT CURRENT (A)

25ºC

85ºC

125ºC

VIN = 5V

Die Temperature* (VIN = 5V)

vs. Output Current

0

20

40

60

80

0

1.5

3

4.5

6

7.5

9

OUTPUT CURRENT (A)

VIN = 5V

Die Temperature* (VIN = 12V)

vs. Output Current

0

20

40

60

80

0

2

3

5

6

8

9

OUTPUT CURRENT (A)

VIN = 12V

IC Power Dissipation (VIN = 5V)

vs. Output Current

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0

1.5

3

4.5

6

7.5

9

OUTPUT CURRENT (A)

VIN = 5V

IC Power Dissipation (VIN = 12V)

vs. Output Current

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

0

1.5

3

4.5

6

7.5

9

OUTPUT CURRENT (A)

VIN = 12V

Die Temperature* : The temperature measurement was taken at the hottest point on the MIC24054 case mounted on a 5 square inch 4 layer, 0.62”,

FR-4 PCB with 2oz finish copper weight per layer, see Thermal Measurement section. Actual results will depend upon the size of the PCB, ambient

temperature and proximity to other heat emitting components.