LM340T5 Positive Voltage Regulator 5V 1.5A TO-220
The LM340T5 is part of the LM340/LM7805 family of monolithic 3-terminal positive voltage regulators. Designed to provide a fixed 5V output, it can handle input voltages up to 35V and deliver currents exceeding 1.5A with proper heat dissipation. The device integrates internal current limiting, thermal shutdown, and safe area protection, ensuring high reliability and durability in various power management applications. Its TO-220 package allows for effective heat sinking and easy mounting, making it ideal for both industrial and consumer electronics.
This regulator is commonly used for local on-card regulation, helping eliminate noise and distribution problems associated with single-point regulation. While it is primarily a fixed-voltage regulator, the LM340T5 can also be used with external components to create adjustable output voltages and currents. Minimal external components are required, though input and output capacitors improve transient response and overall stability.
Features:
- Internal current limiting and thermal shutdown.
- Short-circuit protection.
- Safe-area compensation.
- Minimal external components required.
- TO-220 package allows for easy heat sinking.
- High reliability for industrial and consumer applications.
Specifications:
| Parameter | Value |
|---|---|
| Output Voltage | 5V |
| Output Current | Up to 1.5A |
| Input Voltage Range | 7.5 – 35V |
| Quiescent Current | 8mA |
| Ripple Rejection | 62–80dB |
| Dropout Voltage | 2V |
| Short-Circuit Current | 2.1A |
| Peak Output Current | 2.4A |
| Operating Temperature | 0 – 125°C |
| Maximum Junction Temperature | 150°C |
Pinout:
| Pin | Name | Description |
|---|---|---|
| 1 | Input | Voltage input |
| 2 | Ground | Common ground |
| 3 | Output | Regulated 5V output |
Footprint:
Applications:
- Industrial power supplies.
- SMPS post-regulation.
- HVAC systems.
- AC inverters.
- Test and measurement equipment.
- DC motor drivers (brushed & brushless).
- Solar energy string inverters.
Packages Included:
- 1x LM340T5 Positive Voltage Regulator 5V 1.5A TO-220.
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