National Semiconductor LP3965ET-2.5
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.60 | $3.60 |
| 15+ | $0.83 | $12.45 |
| 25+ | $0.81 | $20.25 |
| 50+ | $0.77 | $38.50 |
| 100+ | $0.68 | $68.00 |
| N+ | $0.14 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| 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) | 0.55V @ 1.5A |
| Current - Output | 1.5A |
| 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 | Through Hole |
| Package / Case | TO-220-5 Formed Leads |
| Supplier Device Package | TO-220-5 |
The National Semiconductor LP3965ET-2.5 is a robust fixed 2.5V low dropout regulator designed for high-current applications. It delivers up to 1.5A with a dropout voltage of just 0.55V, making it highly efficient for post-regulation. The TO-220-5 package ensures excellent thermal performance for demanding loads. With a quiescent current of 9mA, it balances performance with power consumption. This LDO is a reliable choice for powering FPGAs, DSPs, and other digital cores.
- High Output Current: 1.5A capability supports power-hungry digital loads like FPGAs and DSPs.
- Low Dropout Voltage: 0.55V dropout at full load maximizes efficiency and headroom.
- Excellent Thermal Performance: TO-220-5 package dissipates heat effectively for reliable operation.
- Stable 2.5V Output: Ideal for DDR memory termination and precision analog circuits.
FPGA and DSP Core Supplies
The 1.5A output current and low dropout of 0.55V make it ideal for powering the core voltage of FPGAs and DSPs from a 3.3V rail, ensuring stable operation under heavy load transients.
High-Power LED Drivers
Provides a constant 2.5V supply for LED driver circuits in automotive lighting or industrial displays, with the TO-220 package handling heat dissipation.
Post-Regulation for Switching Supplies
Used after a buck converter to provide a clean, low-noise 2.5V rail for sensitive analog circuits, reducing switching noise.
Server and Storage Systems
Powers DDR memory termination voltage (VTT) in servers, where 2.5V and high current are required for stable memory operation.
Test and Measurement Equipment
Provides a precise, stable 2.5V reference for ADC/DAC circuits in benchtop instruments, ensuring measurement accuracy.
Telecom Base Stations
Supplies clean power to RF transceiver ICs, with the high current capability supporting multiple channels.
- Q: What is the output voltage of the LP3965ET-2.5?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.5V 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 9 mA.
- Q: What package is available?
- A: This regulator is available in the TO-220-5 package.
LP3965ET-2.5.pdf
- Q: What is the output voltage of the LP3965ET-2.5?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum output current?
- A: This LDO can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.5V 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 9 mA.
- Q: What package is available?
- A: This regulator is available in the TO-220-5 package.
