National Semiconductor LP38503TJ-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.60 | $4.60 |
| 15+ | $1.06 | $15.90 |
| 25+ | $1.04 | $26.00 |
| 50+ | $0.98 | $49.00 |
| 100+ | $0.86 | $86.00 |
| N+ | $0.17 | Price Inquiry |
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| 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 |
| ROHS |  |
The LP38503TJ-ADJ/NOPB from National Semiconductor is a high-current adjustable LDO regulator capable of delivering 3A. Its output can be set from 0.6V upward using external resistors, offering design flexibility. With a dropout of just 0.67V at full load and a quiescent current of only 15µA, it balances performance and efficiency. The TO-263-5 Thin package provides good thermal characteristics for compact designs.
- Adjustable Output: Flexible voltage setting from 0.6V to 5V.
- High Current: 3A capability for demanding loads.
- Low Quiescent Current: 15µA improves efficiency in battery applications.
- Low Dropout: 0.67V @ 3A minimizes power loss.
FPGA and DSP Core Power
Adjustable output down to 0.6V with 3A capability makes it ideal for powering low-voltage digital cores in FPGAs and DSPs.
High-Efficiency Point-of-Load Regulation
With only 15µA quiescent current and 0.67V dropout, it efficiently steps down from 5V or 3.3V rails.
Battery-Powered Industrial Equipment
Low quiescent current extends battery life in portable industrial tools and instruments.
Automotive Infotainment Systems
Provides a stable adjustable rail for processors and displays, with PSRR of 58dB at 120Hz to reject alternator noise.
Networking and Communication Infrastructure
Delivers clean power to high-speed transceivers and switches, maintaining signal integrity.
Precision Analog Circuits
Adjustable output allows fine-tuning of supply voltages for op-amps and ADCs, improving accuracy.
- Q: What is the output voltage of the LP38503TJ-ADJ/NOPB?
- A: It is an adjustable version, with output set by external resistors (typically 0.6V to 5V).
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 0.6V above the output voltage (dropout).
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.67V at 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 15µA.
- Q: What package is available?
- A: It comes in a TO-263-5 Thin package.
LP38503TJ-ADJ/NOPB.pdf
- Q: What is the output voltage of the LP38503TJ-ADJ/NOPB?
- A: It is an adjustable version, with output set by external resistors (typically 0.6V to 5V).
- Q: What is the maximum output current?
- A: It can deliver up to 3A of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 0.6V above the output voltage (dropout).
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.67V at 3A load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 15µA.
- Q: What package is available?
- A: It comes in a TO-263-5 Thin package.
