Positive fixed-voltage regulator 5V 1A TO3 - LM209K
Description
Positive fixed-voltage regulator 5V 1A TO3 - LM209K
The LM209K is a fixed 5-volt linear voltage regulator designed for local voltage regulation on digital logic boards.
- Output current: With sufficient cooling, it can provide an output current of over 1 ampere.
- Input voltage range: The input voltage range is between 7V and 25V.
- Maximum input voltage: 35V.
- Protection: The component features internal current limiting and thermal shutdown, making it robust and essentially "burn-out proof."
- External components: In most applications, only one external component (a bypass capacitor) is required. This can be omitted, however, if the power supply filter is located nearby. Compatibility: The regulator's output is compatible with TTL and DTL logic systems.
Pinout (viewed from below):
- Pin 1: Input
- Pin 2: Output
- Pin 3: Ground (the case also serves as ground)
Technical Specifications
- Component type: Positive fixed-voltage regulator
- Manufacturer: National Semiconductor / Motorola
- Model designation: LM209K
- Output voltage: +5 V DC
- Output current: 1 A (nominal value)
- Input voltage: approx. 7?25 V DC
- Maximum input voltage: 35 V
- Package: TO-3 metal
- Connections: 2 pins + case
- Current limiting: Integrated
- Thermal protection: Integrated
- Mounting: Screw-mounted
- Cooling: Heatsink required, depending on power dissipation
- Polarity: Positive