SI-3033KM-TL datasheet(5/9 Pages) ALLEGRO

Teilenummer	SI-3033KM-TL

Bauteilbeschribung	1 A, Low-Dropout, 3.3 V Regulator

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Hersteller	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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5 / 9 page

SI-3033KM

1 A, Low-Dropout,

3.3 V Regulator

www.allegromicro.com

Linear

Regulators

5

APPLICATIONS INFORMATION

Input Capacitor (C

I, ≥22 µF). This is necessary either

when the input line includes inductance or when the wiring

is long.

Output Capacitor (C

O, ≥22 µF). This device is designed

for use with a very low ESR output capacitor such as a

ceramic capacitor. Output oscillation may occur with an

aluminum capacitor at low temperatures.

ENABLE Input. The ENABLE (control) input features

an internal pull-down resistor. Leaving this input open

causes the output to turn off.

Parallel Operation. Parallel operation to increase load

current is not permitted.

TYPICAL CHARACTERISTICS (cont.)

(VI = 5 V, TA = 25°C)

GND Pin Current

Increased Output Voltage. The output voltage (V

O)

may be increased by inserting a resistor (R

EXT) between

SENSE and OUTPUT. The current flowing into SENSE is

typically 90 µA ±30%. To minimize the effect of I

SENSE

and temperature on R

EXT, it is recommended that a 13 kΩ

resistor be added between SENSE and GND to increase the

current in R

EXT. The value of REXT is then

R

EXT = (VO – 3.3) × 10

6

/300

Ähnliche Beschreibung - SI-3033KM-TL

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