8187 datasheet(3/8 Pages) ALLEGRO

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8187

LOW-DROPOUT,

3.3 V REGULATOR

ELECTRICAL CHARACTERISTICS at T

A = +25°C (unless otherwise noted).

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Output Voltage

4 V

≤ V

I ≤ 8 V,

A = +25°C

3.25

3.30

3.35

µA ≤ I

O ≤ 100 mA*

-20

°C ≤ T

A ≤ +85°C

3.20

3.30

3.40

I = 3.3 V, IO = 60 mA*, -20°C ≤ TA ≤ +85°C

3.00

—

Output Volt. Temp. Coeff.

I = 6 V, IO = 10 mA

—

±1.0

mV/

°C

Line Regulation

∆V

∆VI)

6 V

≤ V

I ≤ 8 V, IO = 1 mA

—

8.0

4 V

≤ V

I ≤ 6 V, IO = 1 mA

—

Load Regulation

∆V

∆IO)

1 mA

≤ I

O ≤ 100 mA*, VI = 8 V

—

1 mA

≤ I

O ≤ 100 mA*, VI = 6 V

—

1 mA

≤ I

O ≤ 100 mA*, VI = 4 V

—

8.0

Dropout Voltage

Imin - VO

O = 60 mA*

—

150

O = 125 mA*

—

190

300

Quiescent Current

I = 6 V, 1 mA ≤ IO ≤ 100 mA*

—

µA

(GND terminal current)

I = 8 V, 1 mA ≤ IO ≤ 100 mA*

—

µA

Thermal Shutdown Temp.

150

—

°C

Thermal Resistance

RθJA

Mounted on 2.24" x 2.24" solder-coated

—

258

—

°C/W

copper-clad board in still air

Typical values are at T

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

* Pulse test (

≤20 ms). See previous page for duty cycle limitations.

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