TAEJIN LM2940HT-3.3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.13 | $2.13 |
| 15+ | $0.49 | $7.35 |
| 25+ | $0.48 | $12.00 |
| 50+ | $0.45 | $22.50 |
| 100+ | $0.40 | $40.00 |
| N+ | $0.08 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | TAEJIN |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 60V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.4V @ 1A |
| Current - Output | 1A |
| Current - Quiescent (Iq) | 11 mA |
| Current - Supply (Max) | - |
| PSRR | 72dB (120Hz) |
| Control Features | - |
| Protection Features | Short Circuit, Reverse Polarity |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3L |
| ROHS |  |
The LM2940HT-3.3 from TAEJIN is a high-current low-dropout linear regulator providing a fixed 3.3V output. It is capable of delivering up to 1A of current with a low dropout voltage of just 0.4V. Featuring a quiescent current of 11 mA and an excellent PSRR of 72dB at 120Hz, it ensures clean and stable power for demanding digital and analog applications. The TO-220-3L package provides superior thermal performance, making it a reliable choice for industrial and automotive systems.
- High Current Capacity: 1A output supports power-hungry digital loads like FPGAs and processors.
- Low Dropout Voltage: 0.4V dropout allows efficient regulation from a 5V input.
- Excellent Ripple Rejection: 72dB PSRR at 120Hz ensures a clean output for noise-sensitive circuits.
- Superior Thermal Management: TO-220-3L package dissipates heat effectively for reliable operation.
High-Current Digital Loads
With a 1A output capability and low dropout of 0.4V, the LM2940HT-3.3 is ideal for powering FPGAs, microprocessors, and other high-current digital logic from a 5V rail.
Automotive Electronics
The robust TO-220-3L package and high current capability make it suitable for automotive sensors, infotainment systems, and body control modules.
Post-Regulation for Switching Supplies
Its high PSRR (72dB at 120Hz) makes it an excellent choice for cleaning up the output of a DC-DC converter, providing a low-noise 3.3V rail for sensitive circuits.
Industrial Control Boards
Provides a stable 3.3V supply for microcontrollers, communication interfaces, and industrial I/O in factory automation equipment.
Networking Equipment
Ideal for routers, switches, and other networking hardware that require a reliable 3.3V rail for high-speed digital ICs.
- Q: What is the output voltage of the LM2940HT-3.3?
- A: The LM2940HT-3.3 provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the provided data; the voltage_input field indicates 3.3V, which is the output voltage. Please refer to the datasheet for the full input range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.4V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 11 mA.
- Q: What package is this LDO available in?
- A: It is available in the TO-220-3L package.
LM2940HT-3.3.pdf
- Q: What is the output voltage of the LM2940HT-3.3?
- A: The LM2940HT-3.3 provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the provided data; the voltage_input field indicates 3.3V, which is the output voltage. Please refer to the datasheet for the full input range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.4V at a 1A load.
- Q: What is the quiescent current?
- A: The quiescent current is 11 mA.
- Q: What package is this LDO available in?
- A: It is available in the TO-220-3L package.
