Texas Instruments LM340LAZ-5.0/LFT4
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 15+ | $0.33 | $4.95 |
| 25+ | $0.32 | $8.00 |
| 50+ | $0.31 | $15.50 |
| 100+ | $0.27 | $27.00 |
| N+ | $0.05 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tape & Box (TB) | Cut Tape (CT) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 35V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 2V @ 1A |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 6 mA |
| Current - Supply (Max) | - |
| PSRR | 70dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Short Circuit |
| Operating Temperature | 0°C ~ 70°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) |
| Supplier Device Package | TO-92-3 |
| ROHS |  |
The LM340LAZ-5.0/LFT4 from Texas Instruments is a classic low-dropout linear regulator providing a fixed 5.0V output with up to 100mA of current. Known for its simplicity and reliability, it features 70dB PSRR at 120Hz for clean power in audio and industrial applications. The TO-92-3 package is ideal for through-hole PCB designs.
- Proven Reliability: Decades of field use in industrial and consumer applications.
- Excellent Ripple Rejection: 70dB PSRR at 120Hz filters AC mains noise effectively.
- Through-Hole Package: TO-92-3 is easy to solder and replace in legacy designs.
- Simple Design: Requires minimal external components for basic regulation.
Industrial Control Systems
The LM340LAZ-5.0 provides a stable 5V rail for logic circuits, relays, and industrial sensors, with the TO-92 package allowing through-hole mounting for rugged environments.
Audio Preamplifiers
With 70dB PSRR at 120Hz, it effectively filters mains hum, making it suitable for analog audio circuits requiring a clean 5V supply.
Microcontroller Development Boards
Simple and reliable 5V regulation for hobbyist and educational projects, with through-hole packaging for easy prototyping.
Automotive Aftermarket Electronics
Provides a regulated 5V supply for dashcams, GPS trackers, and car audio accessories from a 12V vehicle battery.
Test and Measurement Equipment
Stable output for bench power supplies and calibration instruments where precision 5V references are needed.
Home Automation Hubs
Powers sensors and controllers in smart home systems, ensuring consistent operation from AC adapters.
- Q: What is the output voltage of the LM340LAZ-5.0/LFT4?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is typically 7V to 20V (verify datasheet).
- Q: What is the dropout voltage?
- A: Dropout voltage is 2V at 1A (note: at 100mA it will be lower).
- Q: What is the quiescent current?
- A: The quiescent current is 6mA.
- Q: What package is available?
- A: It comes in a TO-92-3 package.
LM340LAZ-5.0/LFT4.pdf
- Q: What is the output voltage of the LM340LAZ-5.0/LFT4?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is typically 7V to 20V (verify datasheet).
- Q: What is the dropout voltage?
- A: Dropout voltage is 2V at 1A (note: at 100mA it will be lower).
- Q: What is the quiescent current?
- A: The quiescent current is 6mA.
- Q: What package is available?
- A: It comes in a TO-92-3 package.
