ADP121 Analog Devices, ADP121 Datasheet - Page 6

• Manufacturer Part Number: ADP121
• Description: 150 mA, Low Quiescent Current, CMOS Linear Regulator in 5-Lead TSOT or 4-Ball WLCSP
• Manufacturer: Analog Devices

ADP121
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 5. Pin Function Descriptions
TSOT
1
2
3
4
5
Pin No.
WLCSP
A1
B2
B1
N/A
A2
Mnemonic
VIN
GND
EN
NC
VOUT
Figure 3. 5-Lead TSOT Pin Configuration
GND
VIN
EN
NC = NO CONNECT
1
2
3
(Not to Scale)
Description
Regulator Input Supply. Bypass VIN to GND with a 1 µF or larger capacitor.
Ground.
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.
No Connect. Not connected internally.
Regulated Output Voltage. Bypass VOUT to GND with a 1 µF or greater capacitor.
TOP VIEW
5
4
VOUT
NC
Rev. E | Page 6 of 20
Figure 4. 4-Ball WLCSP Pin Configuration
A
B
VIN
EN
1
(Not to Scale)
TOP VIEW
VOUT
GND
2
Data Sheet