SG2003 datasheet(4/12 Pages) SGMICRO

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SG2003/A

SG2004/A

４

TYPICAL OPERATION CIRCUIT

OUTPUT

INPUT

2.5V TO 5.5V

OUT

GND

CIN

μF

COUT

μF

OFF

SG2003A

SG2004A

OUTPUT

INPUT

2.5V TO 5.5V

OUT

GND

CIN

μF

CBP

0.01

μF

COUT

μF

OFF

SG2003

SG2004

Adjustable Voltage Version

Fixed Voltage Version

Standard 1% Resistor Values for Common

Output Voltages of Adjustable Voltage Version

VOUT(V)

R1(k

Ω)

R2(k

Ω)

1.5

61.9

1.8

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

Note: VOUT = (R1 + R2)/ R2 × 1.2395

PIN DESCRIPTION

NAME

SOT23-5

SO-8

FUNCTION

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

GND

5,6,7,8

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.

OUT

Regulator Output.

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