SG2003/A

SG2004/A

４

TYPICAL OPERATION CIRCUIT

OUTPUT

INPUT

2.5V TO 5.5V

IN

OUT

EN

FB

GND

1

μF

1

μF

ON

OFF

SG2003A

SG2004A

OUTPUT

INPUT

2.5V TO 5.5V

IN

OUT

BP

GND

1

μF

0.01

μF

1

μF

ON

OFF

SG2003

SG2004

EN

Adjustable Voltage Version

Fixed Voltage Version

Standard 1% Resistor Values for Common

Ω)

Ω)

1.5

13

61.9

1.8

28

61.9

2.5

63.4

61.9

2.8

78.7

61.9

2.85

80.6

61.9

3.0

88.7

61.9

3.3

95.3

57.6

PIN DESCRIPTION

NAME

SOT23-5

PIN

SO-8

PIN

FUNCTION

IN

1

2

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

GND

2

5,6,7,8

Ground.

EN

3

1

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

operation.

BP

4

4

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

capacitor for reduced noise at the output.

FB

4

4

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

OUT

5

3

Regulator Output.