SG2003-3.0 查看數據表（PDF） - Shengbang Microelectronics Co, Ltd

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SG2003-3.0

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

Shengbang Microelectronics Co, Ltd 

TYPICAL OPERATION CIRCUIT

INPUT

2.5V TO 5.5V

IN

OUT

CIN

1μF

ON

OFF

SG2003A

SG2004A

EN

FB

GND

OUTPUT

COUT

R1

1μF

R2

Adjustable Voltage Version

Standard 1% Resistor Values for Common

Output Voltages of Adjustable Voltage Version

VOUT(V)

1.5

1.8

2.5

2.8

2.85

3.0

3.3

R1(kΩ)

13

28

63.4

78.7

80.6

88.7

95.3

R2(kΩ)

61.9

61.9

61.9

61.9

61.9

61.9

57.6

Note: VOUT = (R1 + R2)/ R2 × 1.2395

INPUT

2.5V TO 5.5V

IN

OUT

CIN

1μF

ON

OFF

SG2003

SG2004

EN

BP

GND

OUTPUT

COUT

1μF

CBP

0.01μF

Fixed Voltage Version

PIN DESCRIPTION

NAME

IN

GND

EN

BP

FB

OUT

SOT23-5

PIN

1

2

3

4

4

5

SO-8

PIN

2

5,6,7,8

1

4

4

3

FUNCTION

Regulator Input. Supply voltage can range from 2.5V to 5.5V. Bypass with a 1µF capacitor to GND.

Ground.

Shutdown Input. A logic low reduces the supply current to 10nA. Connect to IN for normal

operation.

Reference-Noise Bypass(fixed voltage version only). Bypass with a low-leakage 0.01µF ceramic

capacitor for reduced noise at the output.

Adjustable voltage version only—this is used to set the output voltage of the device.

Regulator Output.

４

SG2003/A

SG2004/A

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