Datasheet ADP122, ADP123 (Analog Devices) - 6

ADP122/ADP123 Data Sheet PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS VIN 1 5 VOUT VIN 1 5 VOUT ADP122 ADP123 TOP VIEW GND 2 GND 2 (Not to Scale) TOP VIEW (Not to Scale)
3 0
EN 3 4 NC EN 3 4 ADJ
-0 9 9 3 004 8 0
NC = NO CONNECT
08399- Figure 5. ADP122 TSOT Fixed Output Pin Configuration Figure 7. ADP123 TSOT Adjustable Output Pin Configuration
ADP122 ADP123 TOP VIEW TOP VIEW (Not to Scale) (Not to Scale) 1 VOUT VIN 6 1 VOUT VIN 6 2 NC NC 5 2 ADJ NC 5 3 GND EN 4 3 GND EN 4 NOTES NOTES 1. NC = NOT CONNECT. THIS PIN CAN BE LEFT FLOATING 1. NC = NOT CONNECT. THIS PIN CAN BE LEFT FLOATING
137 138
OR CONNECTED TO GROUND. OR CONNECTED TO GROUND. 2. EXPOSED PAD MUST BE CONNECTED TO GND. 2. EXPOSED PAD MUST BE CONNECTED TO GND.
08399- 08399- Figure 6. ADP122 LFCSP Fixed Output Pin Configuration Figure 8. ADP123 LFCSP Adjustable Output Pin Configuration
Table 5. Pin Function Descriptions Pin No. ADP122 ADP123 TSOT LFCSP TSOT LFCSP Mnemonic Description
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. Rev. E | Page 6 of 24 Document Outline Features Applications General Description Typical Application Circuits Revision History Specifications Recommended Specifications Absolute Maximum Ratings Thermal Data Thermal Resistance ESD Caution Pin Configurations and Function Descriptions Typical Performance Characteristics Theory of Operation Applications Information Capacitor Selection Output Capacitor Input Bypass Capacitor Input and Output Capacitor Properties Undervoltage Lockout Enable Feature Current Limit and Thermal Overload Protection Thermal Considerations Junction Temperature Calculations For TSOT Package Junction Temperature Calculations For LFCSP Package Printed Circuit Board Layout Considerations Outline Dimensions Ordering Guide