Texas Instruments LM2576T-3.3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.73 | $3.73 |
| 15+ | $1.69 | $25.35 |
| 25+ | $1.66 | $41.50 |
| 50+ | $1.56 | $78.00 |
| 100+ | $1.38 | $138.00 |
| N+ | $0.28 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| 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) | 3.3V |
| Voltage - Output (Max) | - |
| Current - Output | 3A |
| 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 |
| ROHS |  |
The LM2576T-3.3 is a fixed 3.3V output step-down (buck) switching regulator from TAEJIN, packaged in a TO-220-5 for through-hole mounting. It accepts inputs up to 40V and delivers up to 3A at a 52kHz switching frequency. This regulator is ideal for powering microcontrollers, FPGAs, and digital logic in automotive and industrial applications.
- Fixed 3.3V Output: Directly powers modern digital ICs without external resistors.
- High Current: 3A capability supports memory, peripherals, and multiple loads.
- Wide Input: 40V maximum input handles automotive and industrial voltage variations.
- Thermal Efficiency: TO-220 package with tab allows heatsink attachment for high-power dissipation.
Microcontroller Power
Providing a stable 3.3V rail for MCUs and digital logic from a 12V or 24V supply, the 3A output supports multiple peripherals and memory.
Automotive Electronics
In vehicles, it steps down 12V battery voltage to 3.3V for ECUs, sensors, and CAN transceivers, with 40V input tolerance for safety.
Industrial IoT
For smart sensors and gateways, this converter powers 3.3V wireless modules from 24V industrial loops, ensuring reliable data transmission.
Consumer Electronics
In set-top boxes and routers, the TO-220 package allows easy heatsinking for continuous 3A operation in enclosed spaces.
FPGA/CPLD Systems
Many FPGAs require 3.3V I/O rails; this regulator delivers clean power from a 5V or 12V input, reducing noise for high-speed logic.
- Q: What type of converter is the LM2576T-3.3?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The maximum input voltage is 40V.
- Q: What is the fixed output voltage?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of output current.
- Q: What is the switching frequency?
- A: The switching frequency is 52kHz.
- Q: What package is available?
- A: It comes in a TO-220-5 package.
LM2576T-3.3.pdf
- Q: What type of converter is the LM2576T-3.3?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The maximum input voltage is 40V.
- Q: What is the fixed output voltage?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 3A of output current.
- Q: What is the switching frequency?
- A: The switching frequency is 52kHz.
- Q: What package is available?
- A: It comes in a TO-220-5 package.
