MIC49150-0.9BR datasheet(4/13 Pages) MICREL

Part #	MIC49150-0.9BR

Description	1.5A Low Voltage LDO Regulator w/Dual Input Voltages

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Manufacturer	MICREL [Micrel Semiconductor]

Direct Link	http://www.micrel.com

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Micrel, Inc.

MIC49150

November 2006

4

M9999-111306

Typical Characteristics

0

10

20

30

40

50

60

70

80

0.01

0.1

1

10

100 1000

FREQUENCY (kHz)

Power Supply Rejection Ratio

(Input Suppl )

V

BIAS =3.3V

V

IN =1.8V

V

OUT =1.0V

I

OUT =1.5A

C

OUT =1µFceramic

0

10

20

30

40

50

60

70

80

0.01

0.1

1

10

100 1000

FREQUENCY (kHz)

Power Supply Rejection Ratio

(Bias Suppl )

V

BIAS =3.3V

V

IN =1.8V

V

OUT =1.0V

I

OUT =1.5A

C

OUT =1µFceramic

0

50

100

150

200

250

300

OUTPUT CURRENT (mA)

Dropout Voltage

(Input Suppl )

V

BIAS =5V

V

OUT =1.0V

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

OUTPUT CURRENT (mA)

Dropout Voltage

(Bias Supply)

V

IN =2.5V

V

OUT =1.5V

0

50

100

150

200

250

300

350

400

-40 -20 0 20 40 60 80 100 120

TEMPERATURE(

°C)

Dropout Voltage

vs. Temperature

(Input Supply)

V

BIAS =5V

I

OUT =1.5A

V

OUT =1. 5V

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

-40 -20 0 20 40 60 80 100 120

TEMPERATURE(

°C)

Dropout Voltage

vs. Temperature

(Bias Supply)

V

IN =2.5V

I

OUT =1.5A

V

OUT =1.5V

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0

0.5

1

1.5

2

2.5

INPUT VOLTAGE (V)

Dropout Characteristics

(Input Voltage)

V

BIAS =5V

V

OUT =1.5V

I

OUT

=10mA

I

OUT

=1.5A

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0

1234

56

7

BIAS VOLTAGE (V)

Dropout Characteristics

(Bias Voltage)

V

IN =2.5V

V

OUT =1.5V

I

OUT

=10mA

I

OUT

=1.5A

1.495

1.496

1.497

1.498

1.499

1.500

1.501

1.502

1.503

1.504

1.505

OUTPUT CURRENT (mA)

Load Regulation

V

BIAS =5V

V

IN =2.5V

0

50

100

150

200

250

300

3

3.5

4

4.5

5

5.5

6

6.5

BIAS VOLTAGE (V)

Maximum Bias Current

vs. Bias Voltage

V

ADJ =0V

I

OUT =1.5A

V

IN =2.5V

*Note: Maximum bias current is bias

current with input in dropout

0

50

100

150

200

250

300

-40 -20 0 20 40 60 80 100 120

TEMPERATURE(

°C)

Maximum Bias Current

vs. Temperature

V

BIAS =5V

V

ADJ =0V

V

IN =2.5V

0

5

10

15

20

25

30

35

40

45

-40 -20 0 20 40 60 80 100 120

TEMPERATURE (

°C)

Bias Current

vs. Temperature

V

IN =2.5V

V

OUT =1.5V

V

BIAS =5V

I

OUT

=10mA

I

OUT

= 1500mA

I

OUT

= 100mA

I

OUT

= 750mA

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