SG2003 datasheet(7/12 Pages) SGMICRO

Part #	SG2003

Description	400mA, Low Power, Low Noise, Low Dropout, Linear Regulators

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Manufacturer	SGMICRO [SG Micro Corp]

Direct Link	http://www.sg-micro.com

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SG2003/A

SG2004/A

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TYPICAL OPERATING CHARACTERISTICS

VIN = VOUT(NOMINAL) +1V, CIN = 1µF, COUT = 1µF, CBP = 0.01µF, TA = +25℃, unless otherwise noted.

Output Noise Spectral Density

vs.Frequency

0.01

0.1

1

10

0.01

0.1

1

10

100

1000

Frequency(kHz)

COUT = 10

μF

CBP = 0.01

μF

ILOAD = 10mA

COUT = 1

μF

Output Noise vs.BP Capacitance

0

10

20

30

40

50

60

70

80

0.001

0.01

0.1

BP Capacitance(µF)

VOUT = 2.5V

VOUT = 3.0V

f = 10Hz to 100kHz

COUT = 10

μF

ILOAD = 10mA

Output Noise vs.Load Current

0

10

20

30

40

50

60

70

80

90

100

1

10

100

1000

Load Current(mA)

VOUT = 2.5V

VOUT = 3.0V

f = 10Hz to 100kHz

CBP = 0.01

μF

COUT = 10

μF

Power-Supply Rejection Ratio

vs.Frequency

0

10

20

30

40

50

60

70

80

0.01

0.1

1

10

100

1000

Frequency(kHz)

COUT = 10

μF

CBP = 0.1

μF

ILOAD = 50mA

COUT = 1

μF

Region of Stable COUT ESR vs.Load Current

0.01

0.1

1

10

100

0

100

200

300

400

Load Current(mA)

COUT = 1μF

COUT = 10μF

Stable Region

0.02

Time(200

μs/div)

Output Noise 10Hz To 100KHz

VOUT = 3.3V

COUT = 10

μF

ILOAD = 10mA

CBP = 0.1

μF

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