Texas Instruments LP3965ES-ADJ/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 | 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-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | TO-263 (DDPAK-5) |
| ROHS |
The LP3965ES-ADJ/NOPB from Texas Instruments is a high-current adjustable linear regulator capable of delivering 1.5A. Its output voltage can be set from 1.216V to 5.1V, making it versatile for digital and analog loads. With a low dropout of 0.55V at full load and 60dB PSRR, it ensures stable operation. The TO-263 package provides excellent thermal performance for power applications.
- High Current Capacity: 1.5A output supports demanding digital loads like FPGAs and DSPs.
- Adjustable Output: Flexible 1.216V to 5.1V range eliminates the need for multiple fixed regulators.
- Low Dropout: 0.55V dropout maximizes efficiency when operating from 3.3V or 5V rails.
- Robust Package: TO-263 (DDPAK) handles high power dissipation with ease.
FPGA Core Power
Deliver 1.5A at adjustable voltages (e.g., 1.8V or 2.5V) for FPGA core logic, with 60dB PSRR reducing switching noise.
DSP and Microprocessor Rails
Power high-current digital processors requiring precise voltage regulation with low dropout from 3.3V or 5V supplies.
Set-Top Boxes
Regulate 5V down to 3.3V or 1.8V for audio/video processing ICs, ensuring clean power for HDMI and RF modules.
Industrial Control Systems
Provide stable adjustable rails for PLC I/O boards, with robust TO-263 package for thermal management.
Networking Equipment
Power Ethernet PHYs and switches with low-noise 2.5V or 3.3V outputs, maintaining signal integrity.
Battery Charger Circuits
Use as a post-regulator for charging ICs to provide a clean, adjustable voltage for battery management.
- Q: What is the output voltage of the LP3965ES-ADJ/NOPB?
- A: It is an adjustable LDO with an output range from 1.216V to 5.1V, set by external resistors.
- Q: What is the maximum output current?
- A: This device can deliver up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.5V to 7V, supporting 3.3V and 5V rails.
- Q: What is the dropout voltage?
- A: Dropout voltage is typically 0.55V at a full 1.5A load.
- Q: What is the quiescent current?
- A: Quiescent current is 9 mA, which is higher than micropower LDOs but acceptable for high-current applications.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package, suitable for surface-mount power designs.
- Q: What is the output voltage of the LP3965ES-ADJ/NOPB?
- A: It is an adjustable LDO with an output range from 1.216V to 5.1V, set by external resistors.
- Q: What is the maximum output current?
- A: This device can deliver up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.5V to 7V, supporting 3.3V and 5V rails.
- Q: What is the dropout voltage?
- A: Dropout voltage is typically 0.55V at a full 1.5A load.
- Q: What is the quiescent current?
- A: Quiescent current is 9 mA, which is higher than micropower LDOs but acceptable for high-current applications.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package, suitable for surface-mount power designs.

LP3965ES-ADJ/NOPB.pdf