MIC2605 datasheet(4/13 Pages) MICREL

Part #	MIC2605

Description	0.5A, 1.2MHz / 2MHz Wide Input Range Boost Regulator with Integrated Switch and Schottky Diode

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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4 / 13 page

Micrel, Inc.

MIC2605/6

August 2008

4

M9999-080108-B

Typical Characteristics

1.0

1.2

1.4

1.6

1.8

2.0

4

6

8

10 12 14 16 18

INPUT VOLTAGE (V)

Frequency

vs. Input Voltage

MIC2606

MIC2605

0

1

2

3

4

5

6

7

1 3 5 7 9 11 13 15 17 19

INPUT VOLTAGE (V)

Quiescent Current

vs. Input Voltage

No Switching FB Pin @ 2V

90

91

92

93

94

95

96

97

4

6

8 10 12 14 16 18 20

INPUT VOLTAGE (V)

Max Duty Cycle

vs. Input Voltage

EN = VIN

0

100

200

300

400

500

600

700

800

900

1000

1100

4

6

8 10 12 14 16 18 20

INPUT VOLTAGE (V)

Switch Saturation Voltage

vs. Input Voltage

–50mA –0.1A –0.15A –0.2A

–0.25A –0.3A –0.35A –0.4A

–0.45A –0.5A –0.55A –0.6A

–0.65A –0.7A –0.75A –0.8A

–0.85A

0

100

200

300

400

500

600

700

800

900

1000

1100

SWITCH CURRENT (mA)

Switch Saturation Voltage

vs. Switch Current

–4.5V –5V –6V –7V –8V –9V

–10V –11V –12V –15V –20

0.60

0.65

0.70

0.75

0.80

0.85

0.90

0.95

1.00

4

6

8 10 12 14 16 18 20

INPUT VOLTAGE (V)

Switch Current Limit

vs. Input Voltage

EN = VIN

32.8

32.9

33.0

33.1

33.2

33.3

33.4

4

6

8

10 12 14 16 18

INPUT VOLTAGE (V)

Line Regulation

Load = 40mA

0

10

20

30

40

50

60

70

80

90

4 8 12 16 20 24 28 32 36 40

LOAD CURRENT (mA)

32VOUT Efficiency

12VIN

4.5VIN

0

10

20

30

40

50

60

70

80

90

20

40

60

80

100

120

LOAD CURRENT (mA)

32VOUT Efficiency

VIN = 12V

1.250

1.252

1.254

1.256

1.258

1.260

1.262

1.264

1.266

Feedback Voltage

vs. Temperature

-40 -20 0 20 40 60 80 100 120

TEMPERATURE (°C)

VIN = 12V

Load = 100mA

0.70

0.75

0.80

0.85

0.90

0.95

1.00

Switch Current Limit

vs. Temperature

-40 -20 0 20 40 60 80 100 120

TEMPERATURE (°C)

VIN = 12V

10

100

1000

VSAT

vs. Temperature

-40 -20 0 20 40 60 80 100 120

TEMPERATURE (°C)

ISW=400mA

ISW=100mA

ISW=750mA

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