Texas Instruments LP3855ES-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.57 | $5.57 |
| 15+ | $5.39 | $80.85 |
| 25+ | $5.27 | $131.75 |
| 50+ | $4.98 | $249.00 |
| 100+ | $4.40 | $440.00 |
| N+ | $0.88 | 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) | 1.23V |
| Voltage - Output (Max) | 6.6V |
| Voltage Dropout (Max) | 0.435V @ 1.5A |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 3 mA |
| Current - Supply (Max) | 10 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 Texas Instruments LP3855ES-ADJ/NOPB is an adjustable-output linear regulator capable of delivering 1.5A with an output range from 1.23V to 6.6V. Its low dropout voltage of 0.435V at full load and excellent PSRR (73dB at 120Hz) make it an ideal choice for noise-sensitive applications. The TO-263 (DDPAK-5) package ensures good thermal performance, while the low 3 mA quiescent current supports battery-powered designs.
- Adjustable Output: Flexible 1.23V to 6.6V range suits a variety of custom power rails.
- High PSRR: 73dB at 120Hz effectively rejects power supply noise for clean analog supplies.
- Low Dropout: 0.435V at 1.5A minimizes power dissipation and improves efficiency.
- Low Quiescent Current: 3 mA helps extend battery life in portable applications.
Adjustable Core Voltage for Custom Logic
The adjustable output (1.23V to 6.6V) allows designers to set precise core voltages for custom ASICs or FPGAs that require non-standard rails, with up to 1.5A of current.
Noise-Sensitive Analog Front Ends
With a high PSRR of 73dB at 120Hz, this LDO effectively filters mains-related ripple, making it ideal for powering precision op-amps, ADCs, and sensor signal conditioning circuits.
Battery-Powered Instrumentation
The low 3 mA quiescent current extends battery life in portable meters and data loggers while providing a clean, adjustable supply rail.
Post-Regulation for Low-Voltage Digital Rails
Its low dropout of 0.435V at 1.5A makes it perfect for regulating a 1.8V or 2.5V rail from a slightly higher supply, minimizing power loss.
Automotive Infotainment Systems
The robust TO-263 package and adjustable output make it suitable for powering audio codecs and display drivers in car infotainment units, where clean power is critical.
Industrial Process Control
Provides a stable, adjustable reference for 4-20mA loop transmitters and industrial sensor interfaces, ensuring accurate signal transmission.
- Q: What is the output voltage range of the LP3855ES-ADJ/NOPB?
- A: The adjustable output voltage can be set from 1.23V up to 6.6V using external resistors.
- Q: What is the maximum output current?
- A: It can provide up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the provided data; refer to the datasheet for full specifications.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.435V at a 1.5A load.
- Q: What is the quiescent current?
- A: The quiescent current is 3 mA.
- Q: What is the PSRR performance?
- A: The power supply rejection ratio is 73dB to 57dB at 120Hz.
LP3855ES-ADJ/NOPB.pdf
- Q: What is the output voltage range of the LP3855ES-ADJ/NOPB?
- A: The adjustable output voltage can be set from 1.23V up to 6.6V using external resistors.
- Q: What is the maximum output current?
- A: It can provide up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is not explicitly specified in the provided data; refer to the datasheet for full specifications.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.435V at a 1.5A load.
- Q: What is the quiescent current?
- A: The quiescent current is 3 mA.
- Q: What is the PSRR performance?
- A: The power supply rejection ratio is 73dB to 57dB at 120Hz.
