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Rev.1.7 Sep.20, 2019

AX1212A



PIN ASSIGNMENT

The packages of AX1212A are SOT223-3L and TO252-3L; the pin assignment is given by:

VIN

VOUT

GND

Tab is Vout

( Top View )

3

2

1

SOT223

TO252

3

2

1

VIN

VOUT

GND

Tab is Vout

( Top View )

Name

Description

GND

A resistor divider from this pin to the

VOUT pin and ground sets the output

voltage. (Ground only for Fixed-Mode)

VOUT

The output of the regulator. A minimum

of 4.7uF MLCC capacitor must be

connected from this pin to ground to

insure stability.

VIN

The input pin of regulator. Typically a

4.7uF MLCC capacitor is connected

from this pin to ground to insure that the

input voltage does not sag below the

minimum dropout voltage during the

load transient response. This pin must

always be 1.5V higher than VOUT in

order for the device to regulate properly.



ORDER/MARKING INFORMATION

Order Information

AX1212A X X

Low Dropout

Regulator

Package

E : SOT223-3L

D : TO252-3L

Packing

Blank : Tube

A

: Taping

Top Marking (SOT223-3L)

Top Marking (TO252-3L)

1

Y

AX

Part number

ID code: internal

WW: 01~52

Logo

Year: 8=2018

9=2019

B=2020

C=2021

D=2022

2

2

1

W WX

A

Functional code

:

Z=2044

1

Y

AX

Part number

ID code: internal

WW: 01~52

Logo

Year: 18=2018

19=2019

20=2020

21=2021

22=2022

2

2

1

W WX

Y

A

Functional code

:

45=2045