Texas Instruments LM1084IT-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.37 | $2.37 |
| 15+ | $2.29 | $34.35 |
| 25+ | $2.24 | $56.00 |
| 50+ | $2.12 | $106.00 |
| 100+ | $1.87 | $187.00 |
| N+ | $0.37 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 27V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.5V @ 5A |
| Current - Output | 5A |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | - |
| PSRR | 72dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The Texas Instruments LM1084IT-3.3/NOPB is a high-current 5A low dropout linear regulator providing a fixed 3.3V output. Packaged in a TO-220-3 through-hole case, it offers a dropout voltage of 1.5V at full load and a quiescent current of 10mA. With 72dB PSRR at 120Hz, it delivers clean, stable power for demanding digital systems.
- 5A Output Current: Powers high-performance processors, FPGAs, and multiple peripherals.
- TO-220 Package: Superior thermal dissipation for continuous high-current loads.
- Low Dropout: 1.5V dropout reduces power loss, improving system efficiency.
- High PSRR: 72dB at 120Hz ensures clean power for noise-sensitive applications.
High-Current 3.3V Digital Systems
For servers, routers, and industrial PCs, the LM1084IT-3.3/NOPB provides a robust 5A supply for CPUs, FPGAs, and memory. The TO-220 package with heatsink tab handles the thermal load.
Post-Regulation for 3.3V Rails
When a DC-DC converter produces a noisy 3.3V rail, this LDO cleans it up. With 72dB PSRR at 120Hz, it attenuates ripple and switching noise, ensuring stable operation of sensitive logic.
Automotive ECU Power
In engine control units, 3.3V is used for microcontrollers and sensors. The 5A capability powers multiple subsystems, while thermal shutdown protects against harsh automotive conditions.
Industrial Motor Drives
For variable frequency drives, the control board needs a stable 3.3V supply. This regulator provides the current headroom for IGBT gate drivers and DSPs, even under transient loads.
Telecom Base Stations
Base station transceivers require clean 3.3V for RF and baseband processing. The high PSRR and 5A output ensure reliable performance in high-interference environments.
Laboratory Power Supplies
As a bench supply for 3.3V logic, this regulator offers high current and low noise. The through-hole package is easy to mount on prototype boards and heatsinks.
- Q: What is the fixed output voltage of the LM1084IT-3.3/NOPB?
- A: This LDO regulator provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can deliver up to 5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.5V above the output and can go up to 29V maximum.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.5V at a 5A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10mA.
- Q: What package is available?
- A: It comes in a TO-220-3 through-hole package.
LM1084IT-3.3/NOPB.pdf
- Q: What is the fixed output voltage of the LM1084IT-3.3/NOPB?
- A: This LDO regulator provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can deliver up to 5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 1.5V above the output and can go up to 29V maximum.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.5V at a 5A load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10mA.
- Q: What package is available?
- A: It comes in a TO-220-3 through-hole package.
