Texas Instruments LP3873ESX-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.86 | $4.86 |
| 15+ | $4.71 | $70.65 |
| 25+ | $4.61 | $115.25 |
| 50+ | $4.35 | $217.50 |
| 100+ | $3.84 | $384.00 |
| N+ | $0.77 | 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 | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 7V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.2V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 9 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 73dB ~ 57dB (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 LP3873ESX-3.3/NOPB from Texas Instruments is a 3.3V low-dropout linear regulator delivering up to 3A. With a dropout voltage of 1.2V at full load and a quiescent current of 9 mA, it is designed for applications where input headroom is available. The TO-263 (DDPAK-5) package ensures excellent thermal dissipation, while 73dB PSRR at 120Hz provides clean, stable output. This LDO is a robust choice for industrial, automotive, and networking power systems.
- High Current Capacity: 3A output supports multiple loads and high-power digital circuits.
- Superior Noise Rejection: 73dB PSRR at 120Hz ensures clean power for sensitive analog and digital components.
- Robust Thermal Design: TO-263 package handles high power dissipation, enhancing reliability in harsh environments.
- Proven TI Reliability: Manufactured by Texas Instruments with lead-free NOPB compliance.
3.3V Logic Power for Industrial PLCs
The LP3873ESX-3.3/NOPB provides stable 3.3V power to PLC logic circuits and I/O modules, with 3A capacity to support multiple interface cards.
Automotive Body Electronics
In body control modules, this LDO powers 3.3V microcontrollers and CAN transceivers, with the TO-263 package handling under-hood temperatures.
Networking Switches and Routers
The 3A output supports high-speed Ethernet switch ASICs and PHYs, ensuring clean 3.3V supply with 73dB PSRR for reliable data transmission.
Test Equipment Power Supplies
For benchtop instruments, the LP3873 delivers regulated 3.3V to digital logic and display drivers, with high ripple rejection for accurate measurements.
Medical Monitoring Devices
The stable 3.3V output powers patient monitoring systems, ensuring reliable operation of sensors and communication modules in critical care.
Server and Storage Systems
In data centers, this regulator provides 3.3V to RAID controllers and SSD controllers, with high current capability for demanding workloads.
- Q: What is the output voltage of the LP3873ESX-3.3/NOPB?
- A: This LDO provides a fixed 3.3V output voltage.
- Q: What is the maximum output current?
- A: The LP3873 can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The device is designed for a 3.3V input supply, suitable for standard 3.3V power rails.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at a 3A load, requiring a higher input headroom for full output.
- Q: What is the quiescent current?
- A: The quiescent current is 9 mA, which is higher but acceptable for high-current applications.
- Q: What package is available?
- A: It is offered in a TO-263 (DDPAK-5) package, providing excellent thermal performance for high-power dissipation.
LP3873ESX-3.3/NOPB.pdf
- Q: What is the output voltage of the LP3873ESX-3.3/NOPB?
- A: This LDO provides a fixed 3.3V output voltage.
- Q: What is the maximum output current?
- A: The LP3873 can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The device is designed for a 3.3V input supply, suitable for standard 3.3V power rails.
- Q: What is the dropout voltage?
- A: The dropout voltage is 1.2V at a 3A load, requiring a higher input headroom for full output.
- Q: What is the quiescent current?
- A: The quiescent current is 9 mA, which is higher but acceptable for high-current applications.
- Q: What package is available?
- A: It is offered in a TO-263 (DDPAK-5) package, providing excellent thermal performance for high-power dissipation.
