Texas Instruments LM340T-15 15V 1A Fixed Linear Voltage Regulator TO-220

The Texas Instruments LM340T-15/NOPB is a monolithic three-terminal positive voltage regulator designed for robust and reliable performance. It employs internal current-limiting, thermal shutdown, and safe-area compensation, making it exceptionally durable for demanding applications. When provided with adequate heat sinking, this regulator can deliver a stable output current exceeding 1.0A. It is intended for use as a fixed voltage regulator in a wide variety of scenarios, including local on-card regulation to eliminate noise and solve distribution problems associated with single-point power supply regulation.

Beyond its primary function, this versatile device can be used with external components to create adjustable output voltages and currents, offering significant design flexibility. Considerable design effort ensures the entire LM340 series is easy to implement, minimising the number of required external components. While not strictly necessary, bypassing the output can improve transient response, and input bypassing is recommended only if the regulator is situated far from the power supply's filter capacitor.

Key Features & Protections

• Internal thermal overload protection safeguards the device from excessive operating temperatures.
• An internal short-circuit current limit provides inherent safety against output faults.
• Output transistor safe-area protection ensures reliable operation under various load conditions.
• This is a P+ product enhancement tested component, signifying higher reliability standards.
• It is a green product, manufactured with no antimony or bromine (no Sb/Br).

With its TO-220 through-hole package, this 15V regulator is ideal for industrial applications where a stable and clean voltage supply is critical. Its robust construction and comprehensive protection features make it a dependable choice for power management solutions.