ADP122/ADP123

Data Sheet

Rev. E | Page 6 of 24

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

ADP122

TOP VIEW

(Not to Scale)

1

VIN

2

GND

3

EN

5

VOUT

4

NC

NC = NO CONNECT

Figure 5. ADP122 TSOT Fixed Output Pin Configuration

TOP VIEW

(Not to Scale)

ADP122

3

GND

1

VOUT

2

NC

4

EN

6

VIN

5

NC

NOTES

1. NC = NOT CONNECT. THIS PIN CAN BE LEFT FLOATING

OR CONNECTED TO GROUND.

2. EXPOSED PAD MUST BE CONNECTED TO GND.

Figure 6. ADP122 LFCSP Fixed Output Pin Configuration

ADP123

TOP VIEW

(Not to Scale)

1

VIN

2

GND

3

EN

5

VOUT

4

ADJ

Figure 7. ADP123 TSOT Adjustable Output Pin Configuration

TOP VIEW

(Not to Scale)

ADP123

3

GND

1

VOUT

2

ADJ

4

EN

6

NOTES

1. NC = NOT CONNECT. THIS PIN CAN BE LEFT FLOATING

OR CONNECTED TO GROUND.

2. EXPOSED PAD MUST BE CONNECTED TO GND.

VIN

5

NC

Figure 8. ADP123 LFCSP Adjustable Output Pin Configuration

Table 5. Pin Function Descriptions

Pin No.

Mnemonic

Description

ADP122

ADP123

TSOT

LFCSP

TSOT

LFCSP

1

6

1

6

VIN

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

2

3

2

3

GND

Ground.

3

4

3

4

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

N/A

4

2

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

2, 5

N/A

5

NC

No Connect. These pins are not internally bonded. They can be left floating or connected

to ground.

5

1

5

1

VOUT

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

N/A

EP

N/A

EP

EPAD

Exposed Pad. The exposed pad must be connected to ground.