ADP124/ADP125

Data Sheet

Rev. C | Page 6 of 20

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS

VOUT

1

VOUT

2

VOUT SENSE

3

GND

4

VIN

8

VIN

7

NC

6

EN

5

NOTES

1. NC = NO CONNECT.

2. THE EXPOSED PAD MUST BE CONNECTED TO GROUND.

ADP124

TOP VIEW

(Not to Scale)

Figure 3. ADP124 Fixed Output MSOP Pin Configuration

TOP VIEW

(Not to Scale)

ADP124

3

VOUT SENSE

4

GND

1

VOUT

2

VOUT

6 NC

5 EN

8 VIN

7 VIN

NOTES

1. NC = NO CONNECT.

2. THE EXPOSED PAD MUST BE CONNECTED TO GROUND.

Figure 4. ADP124 Fixed Output LFCSP Pin Configuration

VOUT

1

VOUT

2

ADJ

3

GND

4

VIN

8

VIN

7

NC

6

EN

5

ADP125

TOP VIEW

(Not to Scale)

NOTES

1. NC = NO CONNECT.

2. THE EXPOSED PAD MUST BE CONNECTED TO GROUND.

Figure 5. ADP125 Adjustable Output MSOP Pin Configuration

TOP VIEW

(Not to Scale)

ADP125

3

ADJ

4

GND

1

VOUT

2

VOUT

6 NC

5 EN

8 VIN

7 VIN

NOTES

1. NC = NO CONNECT.

2. THE EXPOSED PAD MUST BE CONNECTED TO GROUND.

Figure 6. ADP125 Adjustable Output LFCSP Pin Configuration

Table 5. Pin Function Descriptions

Mnemonic

Pin No.

ADP124

ADP125

Description

1

VOUT

VOUT

Regulated Output Voltage. Bypass VOUT to GND with a 1 µF or greater capacitor.

2

VOUT

VOUT

Regulated Output Voltage. Bypass VOUT to GND with a 1 µF or greater capacitor.

3

VOUT SENSE

N/A

Feedback Node for the Error Amplifier. Connect to VOUT.

N/A

ADJ

Feedback Node for the Error Amplifier. Connect the midpoint of an external divider from VOUT to GND

to this pin to set the output voltage.

4

GND

GND

Ground.

5

EN

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.

6

NC

NC

No Connect. This pin is not connected internally.

7

VIN

VIN

Regulator Input Supply. Bypass VIN to GND with a 1 µF or greater capacitor.

8

VIN

VIN

Regulator Input Supply. Bypass VIN to GND with a 1 µF or greater capacitor.

EPAD

EPAD

The exposed pad must be connected to ground.