Overview
The LM2576D2TR4-012G is a high-efficiency step-down switching regulator produced by onsemi. This component is part of the LM2576 series and is designed to provide a fixed output voltage of 12V with a maximum output current of 3A. It is packaged in a TO-263-5 (D2PAK-5) surface mount package, making it suitable for a variety of applications requiring compact and efficient power regulation.
The regulator operates over a wide input voltage range of 7V to 40V and features a fixed switching frequency of 52kHz. It includes several protection features such as cycle-by-cycle current limiting and thermal shutdown, ensuring reliable operation under various conditions.
Key Specifications
| Attribute | Value |
|---|---|
| Topology | Buck |
| Input Voltage | 7V to 40V |
| Output Voltage | 12V (Fixed) |
| Output Current-Max | 3A |
| Switching Frequency-Max | 52kHz |
| Operating Temp Range | -40°C to +125°C |
| Duty Cycle-Max | 98% |
| Efficiency | 88% |
| No. of Outputs | 1 |
| Quiescent Current | 9mA |
| Storage Temperature Range | -65°C to +150°C |
| Moisture Sensitivity Level | 1 |
| Package Type | TO-263-5 (D2PAK-5) |
| Mounting Type | Surface Mount |
Key Features
- High efficiency with up to 88% efficiency.
- Guaranteed ±4% tolerance on output voltage within specified input voltages and output load conditions.
- Fixed switching frequency of 52kHz.
- TTL shutdown capability with low power standby mode.
- Cycle-by-cycle current limiting and thermal shutdown for protection.
- Requires only 4 external components for operation.
- Uses readily available standard inductors.
- Pb-free packages available.
Applications
- Simple high-efficiency step-down (buck) regulators.
- Efficient pre-regulators for linear regulators.
- On-card switching regulators.
- Positive to negative converters (buck-boost).
- Negative step-up converters.
- Power supplies for battery chargers.
Q & A
- What is the output voltage of the LM2576D2TR4-012G?
The output voltage of the LM2576D2TR4-012G is fixed at 12V.
- What is the maximum output current of the LM2576D2TR4-012G?
The maximum output current is 3A.
- What is the input voltage range for the LM2576D2TR4-012G?
The input voltage range is from 7V to 40V.
- What is the switching frequency of the LM2576D2TR4-012G?
The switching frequency is fixed at 52kHz.
- What protection features does the LM2576D2TR4-012G include?
The regulator includes cycle-by-cycle current limiting and thermal shutdown for protection.
- What is the operating temperature range of the LM2576D2TR4-012G?
The operating temperature range is from -40°C to +125°C.
- What type of package does the LM2576D2TR4-012G come in?
The component is packaged in a TO-263-5 (D2PAK-5) surface mount package.
- Is the LM2576D2TR4-012G RoHS compliant?
- What is the quiescent current of the LM2576D2TR4-012G?
The quiescent current is 9mA.
- What are some common applications of the LM2576D2TR4-012G?
Common applications include simple high-efficiency step-down regulators, efficient pre-regulators for linear regulators, on-card switching regulators, and power supplies for battery chargers.
