National Semiconductor LP3853ESX-2.5/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $12.16 | $12.16 |
| 15+ | $2.80 | $42.00 |
| 25+ | $2.74 | $68.50 |
| 50+ | $2.58 | $129.00 |
| 100+ | $2.28 | $228.00 |
| N+ | $0.46 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 7V |
| Voltage - Output (Min/Fixed) | 2.5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.6V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 4 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 LP3853ESX-2.5 is a 3A low dropout regulator providing a fixed 2.5V output. With a dropout of just 0.6V at full load and a low 4mA quiescent current, it excels in efficiency-sensitive designs. The TO-263 package offers superior thermal dissipation, while 73dB PSRR at 120Hz delivers clean power for mixed-signal applications.
- Ultra-Low Dropout: 0.6V at 3A maximizes efficiency in 3.3V to 2.5V conversion.
- Low Quiescent Current: 4mA reduces standby power, ideal for battery-operated devices.
- High PSRR: 73dB at 120Hz filters AC noise, protecting sensitive loads.
- Robust Package: TO-263 (DDPAK-5) supports high current with excellent thermal performance.
DDR Memory Termination
DDR2/DDR3 memory buses require a 2.5V termination rail. The LP3853ESX-2.5 provides 3A with only 0.6V dropout, ensuring stable voltage during high-speed read/write operations.
Graphics Card Core Supply
GPU cores often run at 2.5V for I/O logic. The low 4mA quiescent current reduces standby power, while the 3A capacity handles peak loads during rendering.
Portable Instrumentation
Battery-powered test equipment needs efficient 2.5V rails. The low dropout and high PSRR ensure accurate measurements even as the battery discharges.
Automotive Infotainment
In-vehicle entertainment systems use 2.5V for audio codecs and processors. The TO-263 package withstands automotive temperature ranges, providing reliable operation.
Server Motherboards
Server chipsets require 2.5V for various peripherals. The 3A output and 73dB PSRR at 120Hz ensure clean power for stable server operation.
FPGA Auxiliary Rails
Many FPGAs need 2.5V for auxiliary circuits. The LP3853's low dropout allows operation from 3.3V rails with minimal heat generation.
- Q: What is the output voltage?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum current rating?
- A: It can supply up to 3A of output current.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.6V at 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is 4 mA.
- Q: What is the PSRR performance?
- A: PSRR is 73dB to 57dB at 120Hz.
- Q: What package is available?
- A: It is available in TO-263 (DDPAK-5).
LP3853ESX-2.5/NOPB.pdf
- Q: What is the output voltage?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum current rating?
- A: It can supply up to 3A of output current.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.6V at 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is 4 mA.
- Q: What is the PSRR performance?
- A: PSRR is 73dB to 57dB at 120Hz.
- Q: What package is available?
- A: It is available in TO-263 (DDPAK-5).
