SI-3050C datasheet(3/10 Pages) ALLEGRO

3 / 10 page

SI-3018LSA

LOW-VOLTAGE, HIGH-CURRENT

1.8 V LINEAR REGULATOR

www.allegromicro.com

ELECTRICAL CHARACTERISTICS at T

A = +25°C, VI = VS = 3.3 V, VE = 2.0 V (unless otherwise

noted).

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Output Voltage

O = 500 mA

1.764

1.800

1.836

E = 0 V, Output Off

—

0.5

Output Volt. Temp. Coeff.

O = 5 mA, 0°C ≤ TJ ≤ 100°C—

±0.3

—

mV/

°C

Overcurrent Limit

O = 95% of VO at IO = 500 mA

1.2

1.5

—

Line Regulation

∆V

∆VI)

3.1 V

≤ V

I = VS ≤ 3.5 V, IO = 300 mA

—

2.0

Load Regulation

∆V

∆IO)

≤ I

O ≤ 1 A

—

Dropout Voltage

Imin - VO

O ≤ 1 A

—

0.55

1.2

Ground Terminal Current

GND

O = 0 mA

—

1.7

2.5

E = 0 V, IO = 0 mA

—

1.0

µA

Rejection Ratio

PSRR

100 Hz

≤ f ≤ 120 Hz

—

ENABLE Input Voltage

Output On

2.0

—

Output Off

—

0.8

ENABLE Input Current

E = 2 V, Output On

—

µA

E = 0 V, Output Off

—

-5.0

µA

Thermal Protection Temp.

135

150

—

°C

Thermal Resistance

RθJL

To terminals 7 and 8

—

°C/W

Typical values are at T

A = +25°C and are given for circuit design information only.

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