Texas Instruments LM2575HVSX-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.50 | $4.50 |
| 15+ | $4.36 | $65.40 |
| 25+ | $4.27 | $106.75 |
| 50+ | $4.03 | $201.50 |
| 100+ | $3.56 | $356.00 |
| N+ | $0.71 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | SIMPLE SWITCHER® |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 60V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Current - Output | 1A |
| 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 LM2575HVSX-3.3/NOPB from Texas Instruments is a robust, simple step-down switching regulator designed for high-voltage applications. It accepts a wide input voltage from 4V to 60V and delivers a fixed 3.3V output at up to 1A of load current. Operating at a low 52kHz switching frequency, this device is optimized for high efficiency and low EMI, making it suitable for automotive, industrial, and telecom environments. Its internal 52kHz oscillator and comprehensive protection features, including thermal shutdown and current limiting, provide a reliable and easy-to-use power solution requiring minimal external components.
- High-Voltage Input Tolerance: The 60V maximum input rating provides excellent margin for automotive load-dump and industrial 48V transients, enhancing system reliability.
- Simple, Robust Design: With a low 52kHz switching frequency and internal compensation, the LM2575HV requires only a few external components, simplifying design and reducing BOM cost.
- Proven, Reliable Technology: Based on the industry-standard LM2575 family, this regulator offers a mature, well-documented solution with extensive application support.
- Thermally Efficient Package: The TO-263 (D2PAK) package with a tab provides excellent heat dissipation, allowing full 1A output in high-temperature environments.
Automotive Battery-Connected Systems
With a 60V maximum input, the LM2575HVSX-3.3 is perfect for automotive applications, handling load-dump transients and cold-crank conditions directly from a 12V or 24V battery bus, providing a stable 3.3V for ECUs and sensors.
Industrial 48V Rail Conversion
In industrial environments, this regulator can step down standard 48V telecom or industrial supply rails to 3.3V for logic circuits, microcontrollers, and isolated communication interfaces, simplifying power distribution.
HVAC and Building Automation
For HVAC controllers and building automation panels powered from 24V AC or DC, the wide input range and 1A output provide a robust 3.3V supply for control processors, zone valves, and sensor interfaces.
Offline Power Supplies (Auxiliary)
The high voltage rating allows it to be used as a post-regulator in auxiliary power supplies, converting a rectified DC bus (up to 60V) down to 3.3V for standby or housekeeping circuits in appliances.
Distributed Power for Test & Measurement
In bench and field test equipment, the LM2575HVSX-3.3 offers a simple, reliable solution to generate a 3.3V rail from a variety of unregulated input sources, ensuring accurate operation of measurement front-ends.
- Q: What type of converter is the LM2575HVSX-3.3?
- A: It is a step-down (Buck) switching regulator.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 60V.
- Q: What is the output voltage?
- A: The fixed output voltage is 3.3V.
- 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 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
LM2575HVSX-3.3/NOPB.pdf
- Q: What type of converter is the LM2575HVSX-3.3?
- A: It is a step-down (Buck) switching regulator.
- Q: What is the input voltage range?
- A: The input voltage range is from 4V to 60V.
- Q: What is the output voltage?
- A: The fixed output voltage is 3.3V.
- 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 52kHz.
- Q: What package is available?
- A: It is available in a TO-263-6 (D2PAK) package.
