8181 查看數據表（PDF） - Allegro MicroSystems

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8181

LOW-DROPOUT, 5 V REGULATOR — HIGH EFFICIENCY

Allegro MicroSystems 

8181

LOW-DROPOUT,

5 V REGULATOR

ELECTRICAL CHARACTERISTICS at TA +25°C (unless otherwise noted).

Limits

Characteristic

Symbol Test Conditions

Min.

Typ.

Max.

Output Voltage

Output Volt. Temp. Coeff.

Line Regulation

Load Regulation

Dropout Voltage

Quiescent Current

(GND terminal current)

VO

TA = 25°C, 5.5 V ≤ VI ≤ 10 V,

0 mA ≤ IO ≤ 500 mA†

TA = 85°C, 5.5 V ≤ VI ≤ 10 V,

0 mA ≤ IO ≤ 500 mA*†

αVO

IO = 0

∆VO(∆VI) 5.5 V ≤ VI ≤ 10 V, Output open

∆VO(∆IO) 0 mA ≤ IO ≤ 500 mA†, VI = 6 V

VImin - VO IO = 500 mA†

IQ

VI = 10 V, IO = 500 mA†

VI = 10 V, Output open

4.90

5.00

5.10

4.85

—

5.15

—

±100

—

—

10

30

—

40

100

—

—

300

—

87

120

—

86

120

IQ(off)

VI = 10 V, Output open, VE = 0.4 V

—

ENABLE Input Voltage

VEH

Output ON, VI = 10 V

2.4

VEL

Output OFF, VI = 10 V

—

ENABLE Input Current

IE

VE = VI = 10 V

—

Thermal Shutdown Temp.

TJ

—

Thermal Resistance

RθJA

Mounted on 2.24" x 2.24" solder-coated

—

copper-clad board in still air

—

20

—

—

—

0.4

—

±0.1

165

—

67

—

RθJT

—

6.0

—

Typical values are given for circuit design information only.

* This parameter is tested to a lot sample plan only.

† Pulse test (<20 ms).

Units

V

V

µV/°C

mV

mV

mV

µA

µA

µA

V

V

µA

°C

°C/W

°C/W

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