8405 datasheet(3/8 Pages) ALLEGRO

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8405

LOW-DROPOUT

REGULATORS

www.allegromicro.com

ELECTRICAL CHARACTERISTICS at T

A = +25°C, VE ≥ 2.0 V, CBYPASS = TBD (unless otherwise noted).

Limits

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Output Voltage

I ≥ VO(nom) + 1 V, 1 mA ≤ IO ≤ 150 mA*

—

±0.5

—

(reference specified V

O(nom))

I ≥ VO(nom) + 1 V, 1 mA ≤ IO ≤ 150 mA*,

over operating temperature range

—

±2.0

I = VO(nom), IO = 50 mA

—

-0.25

Output Volt. Temp. Coeff.

I = 6 V, IO = 10 mA, TJ ≤ 125°C

—

TBD

—

mV/

°C

Output Short-Circuit Current

200

—

Line Regulation

∆V

∆VI)

at V

I = VO(nom) + 1 V, IO = 3 mA

and V

I = 7 V, IO = 3 mA

—

1.0

2.0

Load Regulation

∆V

∆IO)

at V

I = VO(nom) + 1 V, IO = 1 mA

and V

I = VO(nom) + 1 V , IO = 150 mA*

—

2.0

—

at V

I = 7 V, IO = 1 mA

and V

I = 7 V, IO = 150 mA*

—

2.0

—

Dropout Voltage

Imin - VO

O = 100 mA

—

100

—

Ground Terminal Current

GND

I = VO(nom) + 1 V, IO = 1 mA

—

100

µA

I = VO(nom) + 1 V, IO = 150 mA*

—

100

µA

I = 7 V, IO = 1 mA

—

100

µA

I = 7 V, IO = 150 mA*

—

100

µA

I ≤ 7 V, VE ≤ 0.8 V, IO = 0 mA

—

1.0

µA

ENABLE Input Voltage

I ≥ VO(nom) + 1 V, Output ON

2.0

—

I ≥ VO(nom) + 1 V, Output OFF

—

0.4

ENABLE Input Current

E = VI = 7 V

—

±1.0

µA

Internal Reference Voltage

REF

—1.26

—

ADJUST Input Current

ADJ

A8405SLH-ADJ only

—

0.10

—

µA

Rejection Ratio

PSRR

I = VO(nom) + 1.5 V, Vi = 100 mV,

O = 30 mA, f = 60 Hz

—

Output Noise

10 Hz

≤ f ≤ 100 kHz, I

O = 10 mA, CO = 10 µF

—0.2

—

µV/√Hz

Thermal Shutdown

—

170

—

°C

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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