Texas Instruments LP3966ESX-2.5/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.86 | $4.86 |
| 15+ | $4.71 | $70.65 |
| 25+ | $4.61 | $115.25 |
| 50+ | $4.35 | $217.50 |
| 100+ | $3.84 | $384.00 |
| N+ | $0.77 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 7V |
| Voltage - Output (Min/Fixed) | 2.5V |
| 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 | TO-263 (DDPAK-5) |
| ROHS |  |
The LP3966ESX-2.5/NOPB is a high-performance 3A low dropout linear regulator from Texas Instruments, delivering a fixed 2.5V output. Its low 1.2V dropout voltage at full load ensures efficient operation even with tight input-output margins. Housed in a TO-263 (DDPAK-5) package, it offers excellent thermal performance for demanding applications. With a quiescent current of 9 mA, it balances power efficiency with fast transient response, making it suitable for digital cores, post-regulation, and industrial systems.
- High Current Capacity: 3A output supports power-hungry digital loads without external pass transistors.
- Low Dropout Voltage: 1.2V dropout at 3A enables operation from lower input rails, reducing power dissipation.
- Robust Thermal Package: TO-263 (DDPAK-5) with exposed pad ensures efficient heat sinking for continuous operation.
- Fast Transient Response: 9 mA quiescent current allows quick recovery from load steps, maintaining output stability.
High-Current Digital Loads
With a 3A output capability and 2.5V fixed output, this LDO is ideal for powering FPGAs, DSPs, and ASIC cores that require stable low-voltage rails.
Post-Regulation for Switching Converters
The low dropout of 1.2V allows efficient post-regulation of a 3.3V or 5V bus down to 2.5V, reducing ripple and noise for sensitive analog circuits.
Industrial Control Systems
The TO-263 package with exposed pad provides excellent thermal dissipation for continuous 3A operation in industrial enclosures.
Networking and Telecom Equipment
Stable 2.5V rail for SerDes transceivers and PHY chips, with fast transient response to handle burst data loads.
Battery-Powered Devices
Although quiescent current is 9 mA, the low dropout maximizes battery life by allowing operation near the battery's end-of-life voltage.
Automotive Infotainment
Reliable 2.5V supply for audio codecs and display controllers, with thermal shutdown and current limiting protection.
- Q: What is the output voltage of the LP3966ESX-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- 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 must be at least 2.5V plus the dropout voltage; typically up to 7V absolute maximum.
- 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 TO-263 (DDPAK-5) package.
LP3966ESX-2.5/NOPB.pdf
- Q: What is the output voltage of the LP3966ESX-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- 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 must be at least 2.5V plus the dropout voltage; typically up to 7V absolute maximum.
- 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 TO-263 (DDPAK-5) package.
