National Semiconductor LP3966ES-3.3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $18.00 | $18.00 |
| 15+ | $4.14 | $62.10 |
| 25+ | $4.05 | $101.25 |
| 50+ | $3.83 | $191.50 |
| 100+ | $3.38 | $338.00 |
| N+ | $0.68 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 7V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.2V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 9 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | - |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | DDPAK/TO-263-5 |
| ROHS |  |
The LP3966ES-3.3 is a high-performance 3A low dropout linear regulator from National Semiconductor, providing a fixed 3.3V output. With a dropout voltage of just 1.2V at full load, it is optimized for efficiency in systems with limited headroom. The DDPAK/TO-263-5 package ensures superior thermal management, making it a reliable choice for high-current, space-constrained designs.
- High Output Current: Capable of sourcing 3A, ideal for power-hungry digital loads.
- Low Dropout: 1.2V dropout at 3A improves efficiency and reduces power dissipation.
- Fixed 3.3V Output: Simplifies design by providing a standard logic voltage without external components.
- Excellent Thermal Performance: The DDPAK package dissipates heat effectively, ensuring long-term reliability.
3.3V Logic and I/O Power
The LP3966ES-3.3 provides a stable 3.3V rail for microcontrollers, memory, and peripheral interfaces, ensuring reliable logic-level operation.
High-Current Sensor Arrays
With 3A output, it can power multiple sensors and transducers simultaneously, maintaining a constant voltage for accurate measurements.
Post-Regulation for Low-Noise Audio
Its low dropout and high current make it suitable for cleaning up noisy digital rails to power audio codecs and amplifiers, reducing hum and distortion.
Automotive Infotainment Systems
The robust DDPAK package and high current capability support infotainment processors and displays that require a solid 3.3V supply.
Battery-Powered Equipment
For devices using 5V batteries or adapters, this LDO efficiently steps down to 3.3V, extending battery life with its low dropout characteristics.
- Q: What is the output voltage of the LP3966ES-3.3?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at a 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is 9 mA.
- Q: What package is available?
- A: It comes in a DDPAK/TO-263-5 package.
LP3966ES-3.3.pdf
- Q: What is the output voltage of the LP3966ES-3.3?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at a 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is 9 mA.
- Q: What package is available?
- A: It comes in a DDPAK/TO-263-5 package.
