The LM309 is a 5V regulator fabricated on a single silicon chip. LM309 is designed for the local regulation on digital logic cards, eliminating the distribution problems associated with single-point regulation. LM309 is also available in two standard transistor packages. This regulator delivers output currents in excess of 200 mA if heat sinking is provided. LM309 IC also available in the TO-3 power package and the available output current is greater than 1A.
The regulator is essentially blowout-proof. Current limiting is included to limit the peak output current to a safe value. In addition, thermal shutdown is provided to keep the IC from overheating. If internal dissipation becomes too great, the regulator will shut down to prevent excessive heating.
LM309 Pinout
LM309 Pin Configuration
| Pin Name |
|---|
| OUTPUT |
| INPUT |
| GND |
LM309 Key Features
- Specified to be compatible, worst case, with TTL and DTL
- Output current in excess of 1A
- Internal thermal overload protection
- No external components required
You can download this datasheet for LM309 5V 1A Voltage Regulator – Datasheet from the link given below:
