Texas Instruments LP3855ES-5.0/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) | 5V |
| 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 LP3855ES-5.0/NOPB is a high-performance 5V fixed-output LDO linear regulator from Texas Instruments, capable of delivering up to 1.5A of continuous current. With a low dropout voltage of just 0.38V at full load and a quiescent current of 3mA, it offers an efficient solution for noise-sensitive applications. The TO-263 (DDPAK-5) package ensures excellent thermal performance, making it suitable for demanding industrial and automotive environments.
- High Output Current: Delivers up to 1.5A, suitable for powering high-current digital cores and peripheral circuits.
- Low Dropout Voltage: 0.38V dropout at 1.5A maximizes efficiency and allows operation with lower input voltages.
- Excellent PSRR: 73dB at 120Hz effectively rejects power supply noise, ensuring clean output for analog and RF circuits.
- Robust Thermal Package: TO-263 package dissipates heat efficiently, enabling reliable operation in high-temperature environments.
High-Current 5V Rail for FPGA and DSP Core Supplies
The LP3855ES-5.0/NOPB delivers a stable 5V rail with up to 1.5A, making it ideal for powering the core logic of FPGAs and DSPs that require tight voltage regulation and high transient current.
Post-Regulation for Switching Converters
With a low dropout of 0.38V and excellent PSRR (73dB at 120Hz), this LDO effectively filters switching noise from a buck converter, providing a clean analog supply for sensitive mixed-signal circuits.
Automotive Infotainment and Telematics
The robust TO-263 package handles high power dissipation, making it suitable for automotive head units and telematics systems that need a reliable 5V supply for sensors and microcontrollers.
Industrial Control and PLC Power Supplies
In industrial environments, this regulator provides a stable 5V rail for PLC I/O modules and fieldbus transceivers, ensuring reliable operation despite input voltage fluctuations.
Networking Equipment and Line Cards
For networking switches and routers, the LP3855ES-5.0/NOPB offers a low-noise 5V supply for PHY transceivers and switch ASICs, improving signal integrity and reducing bit errors.
Battery-Powered Test and Measurement Instruments
Its low quiescent current and high output accuracy make it a good choice for portable test equipment where battery life and stable 5V reference are critical.
- Q: What is the output voltage of the LP3855ES-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is 2.5V to 7V (based on 5V output).
- 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 typically 3mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.
- Q: What is the output voltage of the LP3855ES-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage range is 2.5V to 7V (based on 5V output).
- 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 typically 3mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.

LP3855ES-5.0/NOPB.pdf