Texas Instruments LP3965EMPX-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.38 | $2.38 |
| 15+ | $2.31 | $34.65 |
| 25+ | $2.26 | $56.50 |
| 50+ | $2.13 | $106.50 |
| 100+ | $1.88 | $188.00 |
| N+ | $0.38 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Adjustable |
| 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 LP3965EMPX-ADJ is an adjustable low dropout linear regulator from Texas Instruments, capable of delivering up to 1.5A. With an adjustable output range from 1.216V to 5.1V and a low dropout of 0.55V, it offers flexibility and efficiency for powering FPGAs, DSPs, and other high-current loads. The SOT-223 package is designed for thermal performance and compact layouts.
- High Current Capacity: Delivers up to 1.5A, making it suitable for powering demanding digital loads like FPGAs and processors.
- Adjustable Output Flexibility: The output voltage can be set from 1.216V to 5.1V with external resistors, accommodating a wide range of application requirements.
- Low Dropout Voltage: A 0.55V dropout at full load minimizes power dissipation and improves efficiency, especially in battery-powered designs.
- Excellent PSRR: With 60dB to 40dB ripple rejection at 120Hz, it effectively filters out power supply noise, ensuring clean output for sensitive circuits.
FPGA and DSP Core Supplies
With a 1.5A output capability and adjustable voltage down to 1.216V, this LDO is ideal for powering the core logic of FPGAs and DSPs that require precise, low-voltage rails.
High-Power LED Drivers
The adjustable output up to 5.1V and high current capability make it suitable for driving high-brightness LEDs in lighting systems, providing a stable current source.
Post-Regulation for Switching Supplies
Its low dropout voltage of 0.55V makes it an excellent choice for cleaning up noisy outputs from DC-DC converters, providing a low-noise supply for sensitive analog circuits.
Battery-Powered Audio Amplifiers
The ability to set the output voltage precisely and deliver 1.5A makes it perfect for powering audio amplifiers in portable speakers, ensuring high-fidelity sound.
Automotive Infotainment Systems
Provides a stable, adjustable supply for infotainment processors and displays, handling the dynamic current demands of multimedia applications.
- Q: What is the output voltage of the LP3965EMPX-ADJ?
- A: The output voltage is adjustable, with a reference voltage of 1.216V. It can be set to a maximum of 5.1V using external resistors.
- Q: What is the maximum output current?
- A: This adjustable LDO can deliver up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.216V up to 7V, allowing for low-voltage applications.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.55V at a full load of 1.5A.
- Q: What is the quiescent current?
- A: The quiescent current is 9 mA, which is typical for a high-current LDO.
- Q: What package is available?
- A: The LP3965EMPX-ADJ is available in a 5-pin SOT-223 package.
- Q: What is the output voltage of the LP3965EMPX-ADJ?
- A: The output voltage is adjustable, with a reference voltage of 1.216V. It can be set to a maximum of 5.1V using external resistors.
- Q: What is the maximum output current?
- A: This adjustable LDO can deliver up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.216V up to 7V, allowing for low-voltage applications.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.55V at a full load of 1.5A.
- Q: What is the quiescent current?
- A: The quiescent current is 9 mA, which is typical for a high-current LDO.
- Q: What package is available?
- A: The LP3965EMPX-ADJ is available in a 5-pin SOT-223 package.

LP3965EMPX-ADJ/NOPB.pdf