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Linear Voltage Regulator – 7809AC

Rev 1.1

19/02/24

Pad Layout and Functions

Typical Application

VOUT

7809AC

CI

0.33µf

CO

≥0.1µf

VIN

CI is required if the regulator is located an appreciable distance from power supply filter. CO is not required for stability; however it does improve

transient response. For optimum stability and transient response locate CI CO as close as possible to the regulator. A common ground is required

between the input and the output voltages. The input voltage must remain typically 2.0 V above the output voltage even during the low point on the

input ripple voltage.

3, 4

2

1

1400µm (55.11 mils)

2

(0,0)

3

4

1

COORDINATES (µm)

PAD

FUNCTION

X

Y

1

VIN

-610

247

2

GND

-610

-626

3

VOUT

372

-560

4

VOUT

372

247

CONNECT CHIP BACK TO GND