Texas Instruments LP3855ES-1.8/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.86 | $5.86 |
| 15+ | $5.68 | $85.20 |
| 25+ | $5.55 | $138.75 |
| 50+ | $5.24 | $262.00 |
| 100+ | $4.63 | $463.00 |
| N+ | $0.93 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| 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 Texas Instruments LP3855ES-1.8/NOPB is a fixed 1.8V output linear regulator capable of delivering 1.5A. It features a very low dropout voltage of 0.38V at full load and excellent PSRR of 73dB at 120Hz, making it ideal for noise-sensitive applications. The TO-263 (DDPAK-5) package ensures good thermal performance, and the low 3 mA quiescent current supports battery-powered designs.
- Fixed 1.8V Output: Provides a precise, stable rail for low-voltage digital and analog circuits.
- Ultra-Low Dropout: 0.38V at 1.5A maximizes efficiency and allows operation with minimal headroom.
- High PSRR: 73dB at 120Hz effectively filters power supply noise.
- Low Quiescent Current: 3 mA helps extend battery life in portable applications.
Low-Voltage Digital Core Supplies
The fixed 1.8V output and 1.5A current capability make it ideal for powering the core of low-voltage FPGAs, CPLDs, and microprocessors.
DDR Memory Termination
Provides a clean, stable 1.8V rail for DDR2/DDR3 memory termination, ensuring signal integrity and reliable operation.
Noise-Sensitive Analog Circuits
With high PSRR (73dB at 120Hz), this LDO is perfect for powering analog-to-digital converters and precision op-amps that require a noise-free 1.8V supply.
Post-Regulation for Switching Converters
Its low dropout of 0.38V at 1.5A allows efficient post-regulation of a 2.5V or 3.3V buck converter to a precise 1.8V rail.
Portable Battery Devices
The low 3 mA quiescent current helps extend battery life in handheld instruments and wireless devices that need a regulated 1.8V supply.
Industrial Sensor Interfaces
Provides a stable 1.8V reference for industrial sensor signal conditioning, ensuring accurate measurements in harsh environments.
- Q: What is the output voltage of the LP3855ES-1.8/NOPB?
- A: The fixed output voltage is 1.8V.
- 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 0.38V 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-1.8/NOPB.pdf
- Q: What is the output voltage of the LP3855ES-1.8/NOPB?
- A: The fixed output voltage is 1.8V.
- 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 0.38V 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.
