National Semiconductor LP3965ESX-3.3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $12.08 | $12.08 |
| 15+ | $2.78 | $41.70 |
| 25+ | $2.72 | $68.00 |
| 50+ | $2.57 | $128.50 |
| 100+ | $2.27 | $227.00 |
| N+ | $0.45 | 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) | 0.55V @ 1.5A |
| Current - Output | 1.5A |
| 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 LP3965ESX-3.3 is a fixed 3.3V low dropout linear regulator from National Semiconductor, capable of delivering 1.5A. With a dropout voltage of only 0.55V at full load, it is designed for high-current applications where efficiency and stability are critical. The DDPAK/TO-263-5 package provides excellent thermal performance for demanding environments.
- High Output Current (1.5A): Supports power-hungry digital loads like FPGAs and processors.
- Low Dropout (0.55V @ 1.5A): Maintains regulation with minimal headroom, reducing power dissipation.
- DDPAK/TO-263-5 Package: Surface-mount package with low thermal resistance for reliable high-current operation.
- Fixed 3.3V Output: Simplifies design and reduces external component count.
High-Current Digital Loads
Delivers 1.5A at 3.3V for FPGAs, DSPs, and processors that require substantial current. The low dropout of 0.55V ensures stable operation even with input voltage fluctuations.
Post-Regulation for Switching Supplies
Used after a DC-DC converter to provide a clean, low-noise 3.3V rail. The LDO filters out switching ripple, improving performance for sensitive analog and RF circuits.
Server and Storage Systems
Powers memory modules and controllers in servers, where reliable 3.3V at high current is critical. The DDPAK package handles the thermal load effectively.
Industrial Motor Control
Provides a stable 3.3V supply for control logic and gate drivers in motor control systems, ensuring reliable operation in noisy industrial environments.
Telecom Base Stations
Regulates 3.3V for baseband processors and interface circuits, offering high current capability and low dropout for consistent performance.
Automotive Infotainment
Powers infotainment processors and displays, delivering 1.5A with low dropout to handle dynamic load changes.
- Q: What is the output voltage of the LP3965ESX-3.3?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of continuous 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 full specifications.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.55V at 1.5A 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.
LP3965ESX-3.3.pdf
- Q: What is the output voltage of the LP3965ESX-3.3?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of continuous 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 full specifications.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.55V at 1.5A 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.
