SI-3018KM datasheet(3/9 Pages) ALLEGRO

Teilenummer	SI-3018KM

Bauteilbeschribung	1 A, Low-Dropout, 1.8 V Regulator

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Hersteller	ALLEGRO [Allegro MicroSystems]

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SI-3018KM

1 A, Low-Dropout,

1.8 V Regulator

www.allegromicro.com

Linear

Regulators

3

ELECTRICAL CHARACTERISTICS at T

A = +25°C, VE = 2 V (unless otherwise noted).

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Output Voltage

V

O

V

I = 2.5 V, IO = 10 mA

1.764

1.800 1.836

V

O(off)

V

E = 0 V

—

0.5

V

Output Volt. Temp. Coeff.

a

VO

0°C

≤ T

J ≤ 100°C

—

±0.3

—

mV/°C

Output Short-Circuit Current

I

OM

V

I = 2.5 V, See note

1.1

—

A

Line Regulation

∆V

O(

∆VI)

V

I = 2.5 V ~ 6 V, IO = 10 mA

—

15

mV

Load Regulation

∆V

O(

∆IO)

V

I = 2.5 V, IO = 0 A ~ 1.0 A

—

40

mV

Dropout Voltage

V

Imin - VO

I

O = 0.5 A

—

0.6

V

I

O = 1.0 A

—

0.6

V

Ground Terminal Current

I

GND

V

I = 2.5 V, IO = 0 mA, VE = 2.0 V

—

350

µA

V

I = 2.5 V, VE = 0 V

—

1.0

µA

Enable Input Voltage

V

EH

Output ON

2.0

—

V

EL

Output OFF

—

0.8

V

Enable Input Current

I

EH

V

E = 2.0 V

—

40

µA

I

EL

V

E = 0 V

—

0

-5.0

µA

Ripple Rejection Ratio

PSRR

V

I = 2.5 V, 100 Hz ≤ f ≤ 120 Hz

—

55

—

dB

Thermal Shutdown

T

J

I

O = 10 mA

135

150

—

°C

Typical values are given for circuit design information only.

Note: Output short-circuit current is at point where output voltage has decreased 5%.

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