onsemi LM2575D2T-12R4G
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.47 | $3.47 |
| 15+ | $3.36 | $50.40 |
| 25+ | $3.29 | $82.25 |
| 50+ | $3.10 | $155.00 |
| 100+ | $2.74 | $274.00 |
| N+ | $0.55 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | |
| Packaging | Factory | Cut Tape (CT) |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.75V |
| 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 | Surface Mount |
| Package / Case | TO-263-6, D2PAK (5 Leads + Tab), TO-263BA |
| Supplier Device Package | D2PAK-5 |
| ROHS |  |
The onsemi LM2575D2T-12R4G is a simple and robust step-down (Buck) switching regulator designed to deliver a fixed 12V output. It accepts a wide input voltage from 4.75V to 40V and provides up to 1A of load current. This device is well-suited for applications requiring high efficiency and minimal heat generation compared to linear regulators. Its 52kHz switching frequency allows for a good balance between component size and efficiency. The TO-263 (D2PAK) package provides excellent power dissipation for demanding industrial and automotive environments. This converter is a reliable choice for uncomplicated power supply designs.
- Simple and Reliable Design: Requires only a few external components (inductor, diode, capacitors), simplifying the design process and reducing BOM cost.
- Wide Input Voltage Range (4.75V-40V): Handles a broad range of input sources, including unregulated supplies and automotive batteries, with built-in protection.
- High Efficiency vs. Linear Regulators: Switching operation significantly reduces power dissipation, eliminating the need for large heatsinks in many applications.
- Fixed 12V Output: Provides a stable, pre-set output voltage, removing the need for external resistor dividers and simplifying the layout.
Simple 12V Power Supply from 24V Industrial Rails
In industrial control panels with 24V DC buses, this converter provides a simple, reliable 12V rail for relays, valves, and analog sensors without needing complex isolation.
Automotive Aftermarket Accessories
With a 40V input rating, it can regulate 12V for aftermarket lighting, audio systems, or USB chargers directly from a vehicle's electrical system, handling voltage spikes.
HVAC and Building Automation
Used in thermostats and zone controllers, it steps down 24V AC rectified to a stable 12V DC for microcontrollers, displays, and communication interfaces.
Telecom and Networking Equipment
Provides a clean 12V bias supply for fans, line drivers, or auxiliary circuits in networking gear powered from a 24V or 48V backplane.
White Goods and Appliances
In washing machines or refrigerators, it powers control boards and user interfaces from a rectified 12V or 24V supply, offering a cost-effective solution.
Distributed Power Architectures
As an intermediate bus converter, it steps down a 24V or 36V bus to 12V for local point-of-load regulators, simplifying thermal management.
- Q: What type of converter is the LM2575D2T-12R4G?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.75V to 40V.
- Q: What is the fixed output voltage?
- A: The output voltage is fixed at 12V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- 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.
LM2575D2T-12R4G.pdf
- Q: What type of converter is the LM2575D2T-12R4G?
- A: It is a step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.75V to 40V.
- Q: What is the fixed output voltage?
- A: The output voltage is fixed at 12V.
- Q: What is the maximum output current?
- A: The maximum output current is 1A.
- 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.
