Texas Instruments LP3855ESX-1.8/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.04 | $5.04 |
| 15+ | $4.89 | $73.35 |
| 25+ | $4.78 | $119.50 |
| 50+ | $4.51 | $225.50 |
| 100+ | $3.98 | $398.00 |
| N+ | $0.80 | 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) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.38V @ 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 LP3855ESX-1.8/NOPB is a low-dropout linear regulator from Texas Instruments, delivering a fixed 1.8V output at up to 1.5A. Its low dropout voltage of 0.38V at full load makes it ideal for post-regulation from higher voltage rails. With a quiescent current of 3 mA and PSRR of 73dB at 120Hz, it ensures clean, stable power for sensitive digital and analog circuits. The TO-263 (DDPAK-5) package offers excellent thermal performance for demanding applications.
- Precise 1.8V Output: Meets the requirements of low-voltage digital ICs and memory interfaces.
- Low Dropout: 0.38V at 1.5A allows efficient regulation from 2.5V or 3.3V inputs.
- High PSRR: 73dB at 120Hz minimizes noise from switching power supplies.
- Robust Package: TO-263 (DDPAK-5) ensures reliable thermal management in continuous operation.
Low-Voltage Digital Cores
The LP3855ESX-1.8/NOPB provides a stable 1.8V supply for low-voltage digital cores in FPGAs, ASICs, and microprocessors, ensuring reliable operation at high speeds.
DDR Memory Termination
In computing systems, this LDO can power DDR memory termination rails, delivering clean 1.8V with low noise to maintain signal integrity.
Post-Regulation for High-Efficiency Converters
With a dropout of 0.38V at 1.5A, it is ideal for post-regulating a 2.5V or 3.3V bus down to 1.8V, reducing ripple and providing a precise output.
Networking and Communication
For networking equipment, this regulator powers SerDes, PHYs, and switch ICs that require a clean 1.8V rail, with PSRR of 73dB at 120Hz.
Industrial Automation
In industrial automation systems, the LP3855ESX-1.8/NOPB offers a robust solution for powering sensors, controllers, and communication interfaces in harsh environments.
Consumer Electronics
For set-top boxes, gaming consoles, and smart TVs, this LDO provides a reliable 1.8V supply for HDMI interfaces, audio codecs, and video processors.
- Q: What is the output voltage of the LP3855ESX-1.8/NOPB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.8V (minimum) up to 7V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.38V at a 1.5A load.
- Q: What is the quiescent current?
- A: The quiescent current is 3 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.
LP3855ESX-1.8/NOPB.pdf
- Q: What is the output voltage of the LP3855ESX-1.8/NOPB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.8V (minimum) up to 7V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.38V at a 1.5A load.
- Q: What is the quiescent current?
- A: The quiescent current is 3 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.
