SI-3018KM

1 A, Low-Dropout,

1.8 V Regulator

www.allegromicro.com

Linear

Regulators

5

APPLICATIONS INFORMATION

Input Capacitor (C

when the input line includes inductance or when the wiring

is long.

Output Capacitor (C

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.)

GND Pin Current

Increased Output Voltage. The output voltage (V

may be increased by inserting a resistor (R

SENSE and OUTPUT. The current flowing into SENSE is

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

SENSE

and temperature on R

resistor be added between SENSE and GND to increase the

current in R

R

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