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ADP122 View Datasheet(PDF) - Analog Devices

Part NameDescriptionManufacturer
ADP122 5.5 V Input, 300 mA, Low Quiescent Current, CMOS Linear Regulator ADI
Analog Devices ADI
ADP122 Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ADP122/ADP123
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
VIN 1
5 VOUT
ADP122
GND 2 TOP VIEW
(Not to Scale)
EN 3
4 NC
NC = NO CONNECT
Figure 3. ADP122 Fixed Output Pin Configuration
VIN 1
5 VOUT
ADP123
GND 2 TOP VIEW
(Not to Scale)
EN 3
4 ADJ
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.
Rev. 0 | Page 6 of 20
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