MIC5319 datasheet(4/10 Pages) MICREL

Part #	MIC5319

Description	500mA uCap Ultra-Low Dropout, High PSRR LDO Regulator

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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4 / 10 page

MIC5319

Micrel

October 2004

4

M9999-100604

Typical Characteristics

0

10

20

30

40

50

60

70

80

90

100

FREQUENCY (Hz)

PSRR

(Bypass Pin Cap = 0.01µF)

50mA

500mA

100µA

1k

10

100

10k

100k

1M

Vout = 2.8V

Vin = Vout + 1V

Cout = 2.2uF

0

10

20

30

40

50

60

70

80

90

100

FREQUENCY (Hz)

PSRR

(Bypass Pin Cap = 0.1µF)

50mA

500mA

100µA

1k

10

100

10k

100k

1M

Vout = 2.8V

Vin = Vout + 1V

Cout = 2.2uF

55

60

65

70

75

80

85

0.1

1

10

100

1000

OUTPUT CURRENT (mA)

Ground Current

Vout = 2.8V

Vin = Vout + 1V

Cout = 2.2uF

Cbyp = 0.01uF

0

10

20

30

40

50

60

70

80

90

-40 -20 0

20 40 60 80 100 120

TEMPERATURE (C)

Ground Current

Iload = 50mA

Vout = 2.8V

Vin = Vout + 1V

Cout = 2.2 uF

0

10

20

30

40

50

60

70

80

90

-40 -20 0

20 40 60 80 100 120

TEMPERATURE (C)

Ground Current

Iload = 150mA

Vout = 2.8V

Vin = Vout + 1V

Cout = 2.2 uF

0

10

20

30

40

50

60

70

80

90

-40 -20 0

20 40 60 80 100 120

TEMPERATURE (C)

Ground Current

Iload = 300mA

Vout = 2.8V

Vin = Vout + 1V

Cout = 2.2 uF

0

10

20

30

40

50

60

70

80

90

100

-40 -20 0

20 40 60 80 100 120

TEMPERATURE (C)

Ground Current

Iload = 500mA

Vout = 2.8V

Vin = Vout + 1V

Cout = 2.2 uF

0

10

20

30

40

50

60

70

80

90

100

3

3.5

4

4.5

5

5.5

INPUT VOLTAGE (V)

Ground Current

Iload = 50mA

Vout = 2.8V

Cout = 2.2 uF

0

10

20

30

40

50

60

70

80

90

100

3

3.5

4

4.5

5

5.5

INPUT VOLTAGE (V)

Ground Current

Iload = 150mA

Vout = 2.8V

Cout = 2.2 uF

0

10

20

30

40

50

60

70

80

90

3

3.5

4

4.5

5

5.5

INPUT VOLTAGE (V)

Ground Current

Iload = 500mA

Vout = 2.8V

Cout = 2.2uF

0

0.5

1

1.5

2

2.5

3

0123

45

INPUT VOLTAGE (V)

Dropout Characteristics

50mA

150mA

500mA

0

5

10

15

20

25

30

-40 -20 0

20 40 60 80 100 120

TEMPERATURE (C)

Dropout Voltage

Iload = 50mA

Vout = 2.8V

Cout = 2.2uF

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