National Semiconductor LM1084IT-3.3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Fixed |
| 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 |
The National Semiconductor LM1084IT-3.3 is a high-current fixed 3.3V linear regulator capable of delivering 5A. With a dropout voltage of just 1.5V at full load, it efficiently regulates from higher input rails. The TO-220-3 package allows for effective heatsinking. It features 72dB PSRR at 120Hz and includes internal current limiting and thermal protection for robust operation.
- High Output Current: 5A capability powers demanding digital loads.
- Low Dropout: 1.5V dropout at 5A maximizes efficiency.
- Excellent Noise Rejection: 72dB PSRR at 120Hz filters line frequency hum.
- Thermal Protection: Internal protection prevents damage from overheating.
High-Current 3.3V Rails
Delivers 5A for FPGAs, ASICs, and microprocessors that require a stable 3.3V supply in networking equipment.
Post-Regulation for Switching Supplies
Used after a DC-DC converter to reduce ripple and noise, with 72dB PSRR at 120Hz for clean output.
Battery Chargers
Provides a regulated 3.3V for charging circuits in industrial battery backup systems.
Audio Amplifier Power
Low noise and high current make it suitable for powering analog audio stages in mixers and amplifiers.
Test and Measurement Equipment
Stable 3.3V rail for precision ADC/DAC reference circuits in benchtop instruments.
Automotive Infotainment
Powers 3.3V logic in car audio and navigation systems, with TO-220 package for heat dissipation.
- Q: What is the fixed output voltage?
- A: The LM1084IT-3.3 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 dropout voltage?
- A: Dropout voltage is 1.5V at 5A load current.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It comes in the TO-220-3 package, which is easy to mount on heatsinks.
- Q: What is the PSRR?
- A: PSRR is 72dB at 120Hz, providing good line noise rejection.
LM1084IT-3.3.pdf
- Q: What is the fixed output voltage?
- A: The LM1084IT-3.3 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 dropout voltage?
- A: Dropout voltage is 1.5V at 5A load current.
- Q: What is the quiescent current?
- A: The quiescent current is 10 mA.
- Q: What package is available?
- A: It comes in the TO-220-3 package, which is easy to mount on heatsinks.
- Q: What is the PSRR?
- A: PSRR is 72dB at 120Hz, providing good line noise rejection.
