Texas Instruments LM2575T-12
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $11.84 | $11.84 |
| 15+ | $3.52 | $52.80 |
| 25+ | $3.45 | $86.25 |
| 50+ | $3.26 | $163.00 |
| 100+ | $2.87 | $287.00 |
| N+ | $0.57 | 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 | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 12V |
| Voltage - Output (Max) | - |
| Current - Output | 1A |
| Frequency - Switching | 52kHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-5 |
| Supplier Device Package | TO-220-5 |
The LM2575T-12 from National Semiconductor is a classic, easy-to-use Buck DC-DC converter that delivers a fixed 12V output from a wide input voltage range of 4V to 40V. It is designed to handle up to 1A of load current with a fixed 52kHz switching frequency, requiring only a few external components for operation. The TO-220-5 package ensures good thermal dissipation, making it a reliable choice for industrial, automotive, and consumer applications.
- Wide Input Voltage Range: Operates from 4V to 40V, accommodating a variety of power sources.
- Fixed 12V Output: Eliminates the need for external feedback components, simplifying design.
- High Reliability: Based on a proven, widely-used design with a robust TO-220 package.
- Low Component Count: Requires only an inductor, diode, and capacitors, reducing cost and board space.
- Thermally Efficient: The TO-220 package allows for easy heatsinking in high-power applications.
Industrial Power Supplies
With a 4V to 40V input range, the LM2575T-12 can be powered from unregulated DC supplies or battery banks, providing a stable 12V output for industrial sensors, controllers, and actuators.
Automotive Aftermarket
In classic cars or aftermarket installations, this converter can step down from a 24V system or handle voltage transients, providing a reliable 12V supply for radios, gauges, and auxiliary lighting.
Networking Equipment
For routers, switches, and small servers, the LM2575T-12 can convert a 24V or 48V input down to 12V for internal fans, disk drives, and peripheral circuits.
Test and Measurement
In bench power supplies or test fixtures, the converter provides a clean, regulated 12V rail for powering op-amps, relays, and logic circuits, with the 52kHz frequency minimizing interference.
Renewable Energy Systems
In small solar or wind power systems, the LM2575T-12 can regulate a variable DC bus (e.g., 18V-36V) down to 12V for battery charging or DC loads, improving system efficiency.
Consumer Electronics
For high-power LED strips, audio amplifiers, or other 12V consumer devices, this converter offers a simple and cost-effective way to power them from a higher-voltage adapter.
- Q: What type of converter is the LM2575T-12?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 40V.
- Q: What is the output voltage?
- A: The output voltage is fixed at 12V.
- Q: What is the maximum output current?
- A: It can provide up to 1A of output 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-220-5 package.
LM2575T-12.pdf
- Q: What type of converter is the LM2575T-12?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4V to 40V.
- Q: What is the output voltage?
- A: The output voltage is fixed at 12V.
- Q: What is the maximum output current?
- A: It can provide up to 1A of output 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-220-5 package.
