Texas Instruments LP3965ES-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.44 | $4.44 |
| 15+ | $4.30 | $64.50 |
| 25+ | $4.20 | $105.00 |
| 50+ | $3.97 | $198.50 |
| 100+ | $3.50 | $350.00 |
| N+ | $0.70 | 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) | 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 | TO-263 (DDPAK-5) |
| ROHS |
The LP3965ES-3.3/NOPB is a fixed 3.3V low dropout linear regulator capable of delivering 1.5A of output current. Its low dropout voltage of 0.55V at full load minimizes power dissipation, making it suitable for high-efficiency power conversion. Housed in a TO-263 (DDPAK-5) package, it offers excellent thermal performance for demanding applications.
- High Current Capacity: Delivers up to 1.5A, suitable for powering core logic and I/O circuits.
- Low Dropout Voltage: 0.55V at 1.5A reduces headroom requirements and improves efficiency.
- Robust Thermal Package: TO-263 package ensures effective heat dissipation for reliable operation.
- Fixed 3.3V Output: Simplifies design with a precise, stable output voltage.
High-Efficiency Point-of-Load Regulation
With a low dropout of 0.55V at 1.5A, the LP3965ES-3.3/NOPB is ideal for converting 5V rails to 3.3V logic supplies with minimal power loss, improving system efficiency.
FPGA and DSP Core Power
Modern FPGAs and DSPs require stable 3.3V core voltages. This regulator's 1.5A current capability and fast transient response ensure reliable operation during heavy processing loads.
Post-Regulation for Switching Converters
Use after a DC-DC converter to eliminate output ripple and provide a clean, low-noise 3.3V supply for sensitive analog and mixed-signal circuits.
Battery-Powered Portable Devices
The 9 mA quiescent current, while not ultra-low, is acceptable for moderate battery life in handheld instruments, providing a stable 3.3V rail from a 4.2V Li-ion battery.
Industrial Sensor Interfaces
Provide a precise 3.3V reference for industrial sensors and ADCs. The TO-263 package offers excellent thermal dissipation for reliable operation in harsh environments.
Networking and Telecom Equipment
Power 3.3V I/O and logic circuits in routers and switches. The robust DDPAK package handles the thermal demands of continuous high-current operation.
- Q: What is the output voltage of the LP3965ES-3.3/NOPB?
- 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 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 full specifications.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.55V at a 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 TO-263 (DDPAK-5) package.
- Q: What is the output voltage of the LP3965ES-3.3/NOPB?
- 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 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 full specifications.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.55V at a 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 TO-263 (DDPAK-5) package.

LP3965ES-3.3/NOPB.pdf