Texas Instruments LP3965EMP-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.63 | $3.63 |
| 15+ | $3.51 | $52.65 |
| 25+ | $3.44 | $86.00 |
| 50+ | $3.25 | $162.50 |
| 100+ | $2.87 | $287.00 |
| N+ | $0.57 | 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 | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 7V |
| Voltage - Output (Min/Fixed) | 1.216V |
| Voltage - Output (Max) | 5.1V |
| Voltage Dropout (Max) | 0.55V @ 1.5A |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 9 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 60dB ~ 40dB (120Hz) |
| 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-261-5, TO-261AB |
| Supplier Device Package | SOT-223-5 |
| ROHS |
The LP3965EMP-ADJ/NOPB from Texas Instruments is a versatile 1.5A adjustable low dropout linear regulator. With an output range up to 5.1V and a dropout of just 0.55V at full load, it offers excellent efficiency for high-current applications. Its 60dB PSRR at 120Hz ensures clean power delivery, making it ideal for noise-sensitive circuits. The SOT-223-5 package provides a compact solution for demanding power management needs.
- High Current Capacity: 1.5A output supports power-hungry loads like FPGAs and processors.
- Adjustable Output: Flexible voltage setting from 1.216V to 5.1V using external resistors.
- Excellent Ripple Rejection: 60dB PSRR at 120Hz ensures clean, stable output for sensitive analog circuits.
- Low Dropout: 0.55V at 1.5A minimizes power dissipation and improves efficiency.
High-Current FPGA Power
With 1.5A output capability, the LP3965EMP-ADJ can power FPGA core rails, providing adjustable voltage to match specific logic requirements.
Post-Regulation for DC-DC Converters
Use after a switching regulator to reduce output ripple and noise, leveraging its 60dB PSRR at 120Hz for clean analog supplies.
Battery Charging Circuits
The adjustable output allows precise voltage setting for charging Li-ion batteries, with 1.5A current capability for fast charging.
Audio Equipment Power
Low noise and high PSRR make it suitable for powering audio DACs and op-amps, ensuring high-fidelity sound reproduction.
Industrial Control Systems
Provides stable adjustable voltage for sensors and actuators in industrial automation, handling up to 1.5A loads reliably.
Telecom Infrastructure
Powers line cards and communication modules requiring adjustable voltage with high current, ensuring consistent performance.
- Q: What is the output voltage of the LP3965EMP-ADJ/NOPB?
- A: It is adjustable; the reference voltage is 1.216V, and output can be set up to 5.1V with external resistors.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage must be above the desired output plus dropout, typically up to 7V.
- 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 9mA.
- Q: What is the PSRR performance?
- A: PSRR is 60dB at 120Hz, reducing to 40dB at higher frequencies.
- Q: What is the output voltage of the LP3965EMP-ADJ/NOPB?
- A: It is adjustable; the reference voltage is 1.216V, and output can be set up to 5.1V with external resistors.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage must be above the desired output plus dropout, typically up to 7V.
- 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 9mA.
- Q: What is the PSRR performance?
- A: PSRR is 60dB at 120Hz, reducing to 40dB at higher frequencies.

LP3965EMP-ADJ/NOPB.pdf