Texas Instruments LM2576S-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.10 | $4.10 |
| 15+ | $3.97 | $59.55 |
| 25+ | $3.89 | $97.25 |
| 50+ | $3.67 | $183.50 |
| 100+ | $3.24 | $324.00 |
| N+ | $0.65 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | SIMPLE SWITCHER® |
| Packaging | Tube | |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 1.23V |
| Voltage - Output (Max) | 37V |
| Current - Output | 3A |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| 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 Texas Instruments LM2576S-ADJ/NOPB is a classic, easy-to-use step-down buck regulator capable of delivering 3A to a load. It accepts a wide input voltage from 4V to 40V and provides an adjustable output from 1.23V to 37V. Operating at a fixed 52kHz switching frequency, it requires only a few external components, simplifying design and enhancing reliability. This regulator is well-suited for a variety of applications, including automotive, industrial, and consumer electronics, where a robust and efficient voltage step-down solution is required.
- Simple and Robust Design: Requires minimal external components and includes internal frequency compensation, making it easy to implement in a wide range of systems.
- Wide Input Voltage Range: The 4V to 40V input range accommodates unregulated supplies and automotive transients, providing design flexibility.
- High Output Current: Capable of delivering up to 3A, sufficient for powering a variety of loads, from logic circuits to motors.
- Proven Technology: A mature and widely used regulator with a long track record of reliability in industrial and automotive applications.
Automotive Power Systems
The wide 4V to 40V input range makes the LM2576S-ADJ/NOPB suitable for automotive environments, where it can step down the 12V battery bus to power sensors, ECUs, and infotainment systems, handling load-dump transients.
Industrial Control Equipment
For 24V industrial control panels, this buck converter provides a robust and simple solution to generate lower voltage rails (e.g., 5V or 3.3V) for microcontrollers, relays, and communication interfaces, with high reliability.
Distributed Power Architectures
It can be used as an intermediate bus converter to step down a 24V or 48V backplane voltage to a local 12V or 5V rail for boards that do not require isolated converters, simplifying design and reducing cost.
Battery Charging Circuits
The adjustable output allows for precise voltage setting for charging lead-acid or Li-ion batteries from a higher voltage source, such as a solar panel or an unregulated wall adapter.
Networking and Telecom Equipment
In networking gear with 12V or 24V internal rails, the LM2576S-ADJ/NOPB can efficiently generate lower voltages for logic, ASICs, and line driver circuits, offering a proven and cost-effective power solution.
White Goods and Appliances
Its simplicity and ruggedness make it a good fit for appliances like washing machines or refrigerators, where it can derive control voltages from the main DC bus, ensuring stable operation in noisy environments.
- Q: What type of converter is the LM2576S-ADJ/NOPB?
- A: It is a step-down (buck) switching regulator.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 40V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 1.23V to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of load current.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
LM2576S-ADJ/NOPB.pdf
- Q: What type of converter is the LM2576S-ADJ/NOPB?
- A: It is a step-down (buck) switching regulator.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 40V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 1.23V to 37V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of load current.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
