AME8821AEEV250Y datasheet(9/15 Pages) AME

Part #	AME8821AEEV250Y

Description	250mA Hi-PSRR, Low-Quiescent LDO with In-Rush Current Control For USB Application

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Manufacturer	AME [Analog Microelectronics]

Direct Link	http://www.ame.com.tw/

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AME, Inc.

9

AME8821

250mA Hi-PSRR, Low-Quiescent LDO

with In-Rush Current Control

For USB Application

Rev.A.01

Dropout Voltage vs. Temperature

Output Voltage vs Load Current

Quiescent Current vs Temperature

Output Spectral Noise Density vs. Frequency

Output Impedance vs. Frequency

Power Supply Ripple Rejection Ratio

0

50

100

150

200

250

300

350

400

-40

-25

-10

5

20

35

50

65

80

95

110

125

Temperature (oC)

V

IN = 4.3V

I

OUT = 250mA

0

100

200

300

400

100

1000

10000

100000

Frequency (Hz)

I

OUT = 250mA

I

OUT =1mA

V

IN=4.3V

C

OUT=4.7µF

C

(SR)=0.47µF

0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

10

100

1000

10000

100000

1000000

Frequency (Hz)

I

OUT = 50mA

V

IN = 4.3V

C

OUT = 4.7µF

I

OUT = 250mA

0

5

10

15

20

25

30

-40

-25

-10

5

20

35

50

65

80

95

110

125

V

IN = 4.3V

I

OUT = 1mA

I

OUT = 250mA

Temperature (oC)

3.260

3.265

3.270

3.275

3.280

3.285

3.290

3.295

3.300

3.305

3.310

0

15 30 45 60 75 90 105 120135150165 180195 210225 240

Load Current (mA)

V

IN = 4.3V

T

A = 25

oC

0

10

20

30

40

50

60

70

80

90

100

10

100

1000

10000

100000

1000000

Frequency (Hz)

I

OUT = 250mA

I

OUT = 1mA

V

IN = 4.3V

V

OUT = 3.3V

C

OUT = 4.7µF

C

(SR) = 0.47µF

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