ADP122/ADP123

Rev. 0 | Page 6 of 20

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

ADP122

TOP VIEW

(Not to Scale)

1

VIN

2

GND

3

EN

5

VOUT

5

VOUT

1

VIN

ADP123

TOP VIEW

(Not to Scale)

2

GND

4

NC

NC = NO CONNECT

Figure 3. ADP122 Fixed Output Pin Configuration

4

ADJ

3

EN

Figure 4. ADP123 Adjustable Output Pin Configuration

Table 5. Pin Function Descriptions

Pin No.

ADP122

ADP123

Mnemonic

Description

1

1

VIN

Regulator Input Supply. Bypass VIN to GND with a capacitor of at least 1 μF.

2

2

GND

Ground.

3

3

EN

Enable Input. Drive EN high to turn on the regulator; drive EN low to turn off the regulator. For

automatic startup, connect EN to VIN.

N/A

4

ADJ

Output Voltage Adjust Input. Connect the midpoint of an external divider from VOUT to GND to this

pin to set the output voltage.

4

N/A

NC

Not Connected Internally.

5

5

VOUT

Regulated Output Voltage. Bypass VOUT to GND with a capacitor of at least 1 μF.