SI-3003KWF datasheet(3/9 Pages) ALLEGRO

部件名	SI-3003KWF

功能描述	1A, Low-Dropout, Dual Outpout, 1.8V & 2.5V Regulator

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制造商	ALLEGRO [Allegro MicroSystems]

网页	http://www.allegromicro.com

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3 / 9 page

SI-3003KWF

1 A, Low-Dropout,

Dual Output,

1.8 V & 2.5 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

Channel 1

Output Voltage

V

O1

V

I = 3.3 V, IO1 = 10 mA

2.450

2.500 2.550

V

O1(off)

V

E = 0 V

—

0.5

V

Output Volt. Temp. Coeff.

a

VO1

0°C

≤ T

J ≤ 100°C

—

±0.3

—

mV/°C

Output Short-Circuit Current

I

OM1

V

I = 3.3 V, See note

1.2

—

A

Line Regulation

∆V

O(

∆VI)1

V

I = 3.2 V ~ 5.0 V, IO1 = 10 mA

—

20

mV

Load Regulation

∆V

O(

∆IO)1

V

I = 3.3 V, IO1 = 0 A ~ 1.0 A

—

30

mV

Dropout Voltage

V

Imin - VO1

I

O1 = 1.0 A

—

0.6

V

Ripple Rejection Ratio

PSRR

V

I = 3.3 V, 100 Hz ≤ f ≤ 120 Hz

—

60

—

dB

Channel 2

Output Voltage

V

O2

V

I = 3.3 V, IO2 = 10 mA

1.764

1.800 1.836

V

O2(off)

V

E = 0 V

—

0.5

V

Output Volt. Temp. Coeff.

a

VO2

0°C

≤ T

J ≤ 100°C

—

±0.3

—

mV/°C

Output Short-Circuit Current

I

OM2

V

I = 3.3 V, See note

1.2

—

A

Line Regulation

∆V

O(

∆VI)2

V

I = 3.2 V ~ 5.0 V, IO2 = 10 mA

—

20

mV

Load Regulation

∆V

O(

∆IO)2

V

I = 3.3 V, IO2 = 0 A ~ 1.0 A

—

30

mV

Dropout Voltage

V

Imin - VO2

I

O2 = 1.0 A

—

0.6

V

Ripple Rejection Ratio

PSRR

V

I = 3.3 V, 100 Hz ≤ f ≤ 120 Hz

—

60

—

dB

Logic

Ground Terminal Current

I

GND

V

I = 3.3 V, IO = 0 mA, VE = 2.0 V

—

1.0

1.5

mA

V

I = 3.3 V, VE = 0 V

—

0.5

mA

Enable Input Voltage

V

EH

Output ON

2.0

—

V

EL

Output OFF

—

0.8

V

Enable Input Current

I

EH

V

E = 2.7 V

—

0

5.0

µA

I

EL

V

E = 0.4 V

—

-12

-100

µA

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%.

类似零件编号 - SI-3003KWF

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类似说明 - SI-3003KWF

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