National Semiconductor LP3872ESX-5.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $7.84 | $7.84 |
| 15+ | $1.80 | $27.00 |
| 25+ | $1.76 | $44.00 |
| 50+ | $1.67 | $83.50 |
| 100+ | $1.47 | $147.00 |
| N+ | $0.29 | 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) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.55V @ 1.5A |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 5 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 LP3872ESX-5.0/NOPB is a fixed 5.0V low dropout linear regulator offering 1.5A output current. It features a low dropout voltage of 0.55V at full load and a quiescent current of 5 mA. With excellent PSRR of 73dB at 120Hz, it effectively filters input noise, making it ideal for sensitive analog and digital applications. The TO-263 (DDPAK-5) package provides superior thermal performance for demanding environments.
- Excellent Noise Rejection: 73dB PSRR at 120Hz ensures a clean output, ideal for sensitive analog circuits.
- High Output Current: 1.5A capability supports a wide range of digital and analog loads.
- Low Dropout: 0.55V dropout at 1.5A minimizes power loss and improves efficiency.
- Low Quiescent Current: 5 mA quiescent current helps reduce standby power consumption.
5V Logic and Microcontroller Power
Many legacy microcontrollers and logic ICs operate from a 5V rail. The LP3872ESX-5.0/NOPB provides a stable 1.5A supply with excellent PSRR, ensuring reliable operation in noisy industrial environments.
Analog Sensor and ADC Supplies
High-resolution ADCs and precision analog sensors require a clean 5V supply. The 73dB PSRR at 120Hz effectively rejects power-line ripple, improving measurement accuracy.
Automotive Infotainment Systems
In automotive applications, this LDO powers audio codecs, display drivers, and communication modules. Its robust TO-263 package handles the thermal demands of high-current operation.
Post-Regulation for 5V Rails
Use after a buck converter to provide a low-noise 5V output. The low dropout voltage allows efficient operation even with a modest input voltage margin.
Test and Measurement Equipment
Benchtop instruments require stable, low-noise power supplies. The LP3872ESX-5.0/NOPB delivers clean 5V power for analog front-ends and reference circuits.
- Q: What is the output voltage of the LP3872ESX-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can provide up to 1.5A of output current.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.55V at a 1.5A load.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA.
- Q: What is the PSRR performance?
- A: PSRR is 73dB at 120Hz, decreasing to 57dB at higher frequencies.
- Q: What package is available?
- A: It is available in a TO-263 (DDPAK-5) package.
LP3872ESX-5.0/NOPB.pdf
- Q: What is the output voltage of the LP3872ESX-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can provide up to 1.5A of output current.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.55V at a 1.5A load.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA.
- Q: What is the PSRR performance?
- A: PSRR is 73dB at 120Hz, decreasing to 57dB at higher frequencies.
- Q: What package is available?
- A: It is available in a TO-263 (DDPAK-5) package.
