National Semiconductor LP38503TJ-ADJ
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.64 | $4.64 |
| 15+ | $1.07 | $16.05 |
| 25+ | $1.04 | $26.00 |
| 50+ | $0.99 | $49.50 |
| 100+ | $0.87 | $87.00 |
| N+ | $0.17 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 5V |
| Voltage Dropout (Max) | 0.67V @ 3A |
| Current - Output | 3A |
| Current - Quiescent (Iq) | 15 µA |
| Current - Supply (Max) | 4 mA |
| PSRR | 58dB ~ 56dB (120Hz ~ 1kHz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-263-5 Thin |
| Supplier Device Package | TO-263-5 Thin |
The LP38503TJ-ADJ is a high-current, adjustable low dropout linear regulator from National Semiconductor. It is capable of delivering up to 3A of output current with a remarkably low dropout voltage of just 0.67V. The device features an ultra-low quiescent current of 15 µA, making it an excellent choice for battery-powered and energy-efficient applications. Its adjustable output voltage, based on a 0.6V reference, provides design flexibility. Housed in a TO-263-5 Thin package, it is designed for high-power, space-conscious applications.
- High Output Current: Delivers up to 3A, suitable for powering demanding processors and FPGAs.
- Ultra-Low Quiescent Current: The 15 µA ground current significantly reduces power consumption in standby and always-on systems.
- Low Dropout Voltage: The 0.67V dropout at 3A ensures high efficiency by minimizing the headroom required between input and output.
- Adjustable Output: Offers design flexibility with an output voltage adjustable down to 0.6V.
High-Current FPGA Core Power
The 3A output current capability makes it ideal for powering the core voltage of large FPGAs and ASICs, providing a stable and efficient power source.
Point-of-Load (POL) Regulation
Its low dropout voltage of 0.67V allows it to regulate from a 3.3V or 5V bus down to lower voltages with minimal power loss, making it perfect for POL applications.
Battery-Powered Industrial Equipment
The ultra-low 15 µA quiescent current is critical for battery-powered industrial sensors and handheld tools, significantly extending operational life.
Adjustable Power Supply for Test & Measurement
The adjustable output (down to 0.6V) provides flexibility for bench power supplies and test equipment requiring precise, variable voltages.
Networking and Telecom Infrastructure
Provides reliable, high-current power for line cards and routers, where efficiency and thermal performance are critical.
Automotive Infotainment Systems
With its high current and low dropout, it can power processors and displays in automotive infotainment systems, ensuring stable operation.
- Q: What is the output voltage of the LP38503TJ-ADJ?
- A: It is an adjustable output LDO, with a reference voltage of 0.6V. The output can be set with external resistors.
- Q: What is the maximum output current?
- A: This regulator can deliver a continuous output current of up to 3A.
- Q: What is the input voltage range?
- A: The input voltage range is from 0.6V (reference) up to the maximum specified input, typically 5.5V.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low, typically 0.67V at a full 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 15 µA, making it highly efficient for always-on applications.
- Q: What package is available?
- A: It is available in a TO-263-5 Thin package, suitable for high-power dissipation.
LP38503TJ-ADJ.pdf
- Q: What is the output voltage of the LP38503TJ-ADJ?
- A: It is an adjustable output LDO, with a reference voltage of 0.6V. The output can be set with external resistors.
- Q: What is the maximum output current?
- A: This regulator can deliver a continuous output current of up to 3A.
- Q: What is the input voltage range?
- A: The input voltage range is from 0.6V (reference) up to the maximum specified input, typically 5.5V.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low, typically 0.67V at a full 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is extremely low at 15 µA, making it highly efficient for always-on applications.
- Q: What package is available?
- A: It is available in a TO-263-5 Thin package, suitable for high-power dissipation.
