Texas Instruments LP3855ESX-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.72 | $4.72 |
| 15+ | $4.57 | $68.55 |
| 25+ | $4.47 | $111.75 |
| 50+ | $4.22 | $211.00 |
| 100+ | $3.73 | $373.00 |
| N+ | $0.75 | 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 | 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 LP3855ESX-ADJ/NOPB from Texas Instruments is a high-current adjustable LDO regulator capable of delivering 1.5A with a dropout of only 0.435V. The output voltage can be set from 1.23V up to 6.6V using external resistors. With 3 mA quiescent current and excellent PSRR, it is well-suited for post-regulation and noise-sensitive applications. The TO-263 (DDPAK-5) package provides excellent thermal performance.
- High Current Capacity: 1.5A output for demanding digital and analog loads.
- Adjustable Output: Flexible voltage setting from 1.23V to 6.6V.
- Low Dropout: 0.435V at full load improves efficiency.
- Excellent PSRR: 73dB to 57dB at 120Hz reduces ripple.
- Robust Package: TO-263 for superior heat dissipation.
High-Current FPGA/ASIC Core Supplies
The 1.5A output capability with 0.435V dropout provides efficient power for digital cores requiring adjustable voltages from 1.23V up to 6.6V.
Post-Regulation for Switching Converters
Excellent PSRR (73dB to 57dB at 120Hz) attenuates switching noise, making it ideal for clean analog rails in mixed-signal systems.
Automotive Infotainment
TO-263 package handles thermal demands of 1.5A loads in car audio, navigation, and display power supplies.
Industrial Control Systems
Adjustable output allows precise voltage setting for PLCs, motor drivers, and sensor arrays requiring stable, low-noise power.
Telecom and Networking Equipment
High current and low dropout support line cards, routers, and base stations where board space is at a premium.
- Q: What is the output voltage of the LP3855ESX-ADJ/NOPB?
- A: It is adjustable; the reference voltage is 1.23V, and the output can be set with external resistors up to 6.6V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.435V at 1.5A load.
- Q: What is the quiescent current?
- A: Quiescent current is 3 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.
- Q: What is the output voltage of the LP3855ESX-ADJ/NOPB?
- A: It is adjustable; the reference voltage is 1.23V, and the output can be set with external resistors up to 6.6V.
- Q: What is the maximum output current?
- A: It can deliver up to 1.5A.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.435V at 1.5A load.
- Q: What is the quiescent current?
- A: Quiescent current is 3 mA.
- Q: What package is available?
- A: It comes in a TO-263 (DDPAK-5) package.

LP3855ESX-ADJ/NOPB.pdf