Texas Instruments LP3965ES-ADJ
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $13.52 | $13.52 |
| 15+ | $4.24 | $63.60 |
| 25+ | $4.15 | $103.75 |
| 50+ | $3.92 | $196.00 |
| 100+ | $3.46 | $346.00 |
| N+ | $0.69 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Obsolete |
| 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-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | TO-263 (DDPAK-5) |
| ROHS |  |
The LP3965ES-ADJ from National Semiconductor is a versatile adjustable low dropout linear regulator capable of delivering 1.5A of output current. With a reference voltage of 1.216V, it allows precise output voltage setting via external resistors. The low dropout voltage of 0.55V at full load ensures efficient operation, while the DDPAK/TO-263-5 package provides excellent thermal dissipation. Its 60dB PSRR at 120Hz makes it suitable for noise-sensitive applications, offering a clean and stable power supply.
- Design Flexibility: The adjustable output (1.216V reference) allows customization to any desired voltage, reducing the need for multiple fixed regulators.
- High Output Current: Supports up to 1.5A, making it suitable for a wide range of power-hungry loads.
- Low Dropout: The 0.55V dropout at 1.5A improves efficiency and reduces thermal stress.
- Robust Package: The DDPAK/TO-263-5 package ensures reliable heat dissipation for continuous high-current operation.
Adjustable Power Supplies
The adjustable output (reference 1.216V) allows designers to set any voltage from 1.216V up to near the input voltage, making it a flexible building block for custom power rails.
High-Current Post-Regulation
With 1.5A capability and 0.55V dropout, it is ideal for post-regulating noisy switching supplies to create clean, stable analog rails.
Motherboard and Peripheral Power
Its robust DDPAK package and high current make it suitable for powering peripherals and memory rails in computing systems.
Industrial Control Systems
The adjustable output and high current capacity support various industrial sensors and actuators requiring precise, regulated voltages.
Audio Equipment Power
With 60dB PSRR at 120Hz, it effectively reduces hum and noise, making it suitable for powering audio DACs and preamplifiers.
Battery Charging Circuits
The adjustable output can be set to the required charging voltage, while the low dropout ensures efficient operation from a battery source.
- Q: What is the output voltage of the LP3965ES-ADJ?
- A: It is an adjustable LDO; the output voltage is set by external resistors. The reference voltage is 1.216V.
- Q: What is the maximum output current?
- A: The LP3965ES-ADJ can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the available data; consult the datasheet for the full range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.55V at a 1.5A load, allowing operation with a moderate input-to-output differential.
- Q: What is the quiescent current?
- A: The quiescent current is 9 mA, which is typical for a high-current adjustable regulator.
- Q: What package is available?
- A: It is available in the DDPAK/TO-263-5 package, suitable for surface-mount applications with good thermal performance.
LP3965ES-ADJ.pdf
- Q: What is the output voltage of the LP3965ES-ADJ?
- A: It is an adjustable LDO; the output voltage is set by external resistors. The reference voltage is 1.216V.
- Q: What is the maximum output current?
- A: The LP3965ES-ADJ can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the available data; consult the datasheet for the full range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.55V at a 1.5A load, allowing operation with a moderate input-to-output differential.
- Q: What is the quiescent current?
- A: The quiescent current is 9 mA, which is typical for a high-current adjustable regulator.
- Q: What package is available?
- A: It is available in the DDPAK/TO-263-5 package, suitable for surface-mount applications with good thermal performance.
