Datasheet
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)
08476-003
Figure 3. ADP124 Fixed Output MSOP Pin Configuration
TOP VIEW
(Not to Scale)
ADP124
3VOUT SENSE
4GND
1VOUT
2VOUT
6 NC
5 EN
8 VIN
7 VIN
08476-105
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)
08476-004
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
3ADJ
4GND
1VOUT
2VOUT
6 NC
5 EN
8 VIN
7 VIN
08476-106
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.