Overview
The LM2576D2T-005 is a monolithic integrated circuit designed by onsemi, specifically tailored for use in step-down (buck) switching regulator applications. This device is part of the LM2576 series, which is renowned for its simplicity and high efficiency in power supply design. The LM2576D2T-005 is capable of driving a 3.0 A load with excellent line and load regulation, making it an ideal choice for various power management scenarios.
Key Specifications
| Parameter | Value |
|---|---|
| Topology | Buck |
| Input Voltage Range | 7 V to 40 V |
| Output Current (Max) | 3 A |
| Output Type | Fixed |
| Output Voltage | 5 V |
| Switching Frequency (Max) | 52 kHz |
| Operating Temperature Range | -40°C to +125°C |
| Duty Cycle (Max) | 98% |
| Efficiency | Up to 77% |
| No. of Outputs | 1 |
| Quiescent Current | 9 mA |
| Storage Temperature Range | -65°C to +150°C |
| Moisture Sensitivity Level (MSL) | 1 |
| Package Style | TO-263-5 (D2PAK5) |
| Mounting Method | Surface Mount |
Key Features
- Fixed output voltage of 5 V
- Guaranteed 3.0 A output current
- Wide input voltage range (7 V to 40 V)
- Requires only 4 external components for operation
- 52 kHz fixed frequency internal oscillator
- TTL shutdown capability with low power standby mode
- High efficiency, especially at higher input voltages
- Uses readily available standard inductors
- Thermal shutdown and cycle-by-cycle current limiting for protection
- Moisture Sensitivity Level (MSL) equals 1
- Pb-free packages available
Applications
- Simple high-efficiency step-down (buck) regulator
- Efficient pre-regulator for linear regulators
- On-card switching regulators
- Positive to negative converter (buck-boost)
- Negative step-up converters
- Power supply for battery chargers
Q & A
- Q: What is the maximum output current of the LM2576D2T-005?
A: The LM2576D2T-005 can drive a 3.0 A load. - Q: What is the input voltage range for the LM2576D2T-005?
A: The input voltage range is from 7 V to 40 V. - Q: What is the switching frequency of the LM2576D2T-005?
A: The switching frequency is 52 kHz. - Q: What is the operating temperature range for the LM2576D2T-005?
A: The operating temperature range is from -40°C to +125°C. - Q: Does the LM2576D2T-005 require a heatsink?
A: In many cases, the power dissipated is so low that no heatsink is required or its size could be reduced dramatically. - Q: What type of package does the LM2576D2T-005 come in?
A: The LM2576D2T-005 comes in a TO-263-5 (D2PAK5) package. - Q: Is the LM2576D2T-005 suitable for battery-operated applications?
A: Yes, the LM2576D2T-005's high efficiency and wide input voltage range make it suitable for battery-operated devices. - Q: What protection features does the LM2576D2T-005 have?
A: The LM2576D2T-005 features cycle-by-cycle current limiting and thermal shutdown for full protection under fault conditions. - Q: Can the LM2576D2T-005 be used in surface mount technology?
A: Yes, the LM2576D2T-005 is designed for surface mount technology. - Q: What is the moisture sensitivity level (MSL) of the LM2576D2T-005?
A: The MSL of the LM2576D2T-005 is 1.
