MIC5331-MNYMT datasheet(4/10 Pages) MICREL

Part #	MIC5331-MNYMT

Description	Micro-Power High Performance Dual 300mA ULDO?

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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4 / 10 page

Micrel, Inc.

MIC5331

February 2008

4

M9999-021408-A

Typical Characteristics

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

PSRR

FREQUENCY (Hz)

50mA

300mA

VIN = 2.3V

VOUT = 1.2V

COUT = 2.2µF

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

PSRR

FREQUENCY (Hz)

50mA

300mA

VIN = 2.3V

VOUT = 1.2V

COUT = 1µF

0

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0

50 100 150 200 250 300

LOAD CURRENT (mA)

Dropout Voltage

vs. Load Current

VOUT = 2.8V

COUT = 1µF

0

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

TEMPERATURE (°C)

Dropout Voltage

vs. Temperature

VOUT = 2.8V

COUT = 1µF

-40 -20 0 20 40 60 80 100 120

100mA

10mA

50mA

300mA

20

22

24

26

28

30

32

34

36

38

40

2

2.5

3

3.5

4

4.5

5

5.5

SUPPLY VOLTAGE (V)

Ground Current

vs. Supply Voltage

VOUT1 = 2.5V

VOUT2 = 1.2V

COUT1 = 1µF

COUT2 = 1µF

IOUT1 = 300mA

IOUT2 = 300mA

Dual LDO Enabled

Single LDO Enabled

25

27

29

31

33

35

37

39

41

0

50 100 150 200 250 300

LOAD CURRENT (mA)

Ground Current

vs. Load Current

VIN = VOUT + 1V

VOUT1 = 2.5V

VOUT2 = 1.2V

COUT1 = 1µF

COUT2 = 1µF

Dual LDO Enabled

Single LDO Enabled

30

33

36

39

42

45

Ground Current

vs. Temperature

EN1 = EN2 = VIN

VIN = VOUT + 1V

VOUT = 2.8V

COUT = 1µF

100mA

300mA

10mA

TEMPERATURE (°C)

-40 -20 0 20 40 60 80 100 120

2.800

2.804

2.808

2.812

2.816

2.820

0

50 100 150 200 250 300

LOAD CURRENT (mA)

Output Voltage

vs. Load Current

VIN = VOUT + 1V

VOUT = 2.8V

COUT = 1µF

2.5

2.6

2.7

2.8

2.9

3.0

Output Voltage

vs. Temperature

VIN = VOUT + 1V

VOUT = 2.8V

COUT = 1µF

TEMPERATURE (°C)

-40 -20 0 20 40 60 80 100 120

350

400

450

500

550

600

650

700

750

800

850

2

2.5

3

3.5

4

4.5

5

5.5

SUPPLY VOLTAGE (V)

Current Limit

vs. Supply Voltage

CIN = 1µF

COUT = 1µF

0

0.2

0.4

0.6

0.8

1.2

1.0

Output Noise

Spectral Density

10

1K

10K 100K

FREQUENCY (Hz)

100

1M

VIN = VOUT + 1V

VOUT = 2.8V

COUT = 1µF

Load = 50mA

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