Overview
The LM2576D2TR4-5G is a high-efficiency step-down switching regulator produced by onsemi. This component is part of the LM2576 series, which is designed for easy and convenient implementation in a variety of power supply applications. The LM2576D2TR4-5G is specifically configured to provide a fixed output voltage of 5V and is capable of delivering up to 3A of output current. It operates within a wide input voltage range of 7V to 40V, making it versatile for various power supply designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 5 | V |
| Output Current | 3 | A |
| Number of Outputs | 1 | |
| Input Voltage - Min | 7 | V |
| Input Voltage - Max | 40 | V |
| Switching Frequency | 52 | kHz |
| Oscillator Frequency Tolerance | ±10% | |
| Output Voltage Tolerance | ±4% | |
| Standby Current | 80 μA (typical) | |
| Thermal Shutdown | Yes | |
| Current Limit Protection | Yes | |
| Maximum Junction Temperature | 150 | °C |
Key Features
- High-efficiency step-down switching regulator with a fixed output voltage of 5V.
- Guaranteed ±4% tolerance on output voltage within specified input voltages and output load conditions.
- Wide input voltage range of 7V to 40V.
- Requires only 4 external components for operation.
- 52 kHz fixed frequency internal oscillator.
- TTL shutdown capability with low power standby mode.
- Thermal shutdown and cycle-by-cycle current limiting for full protection under fault conditions.
- 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 LM2576D2TR4-5G?
The output voltage of the LM2576D2TR4-5G is 5V.
- What is the maximum output current of the LM2576D2TR4-5G?
The maximum output current is 3A.
- What is the input voltage range for the LM2576D2TR4-5G?
The input voltage range is from 7V to 40V.
- What is the switching frequency of the LM2576D2TR4-5G?
The switching frequency is 52 kHz.
- Does the LM2576D2TR4-5G have thermal shutdown protection?
Yes, it includes thermal shutdown protection.
- How many external components are required for the LM2576D2TR4-5G to operate?
It requires only 4 external components.
- What is the typical standby current of the LM2576D2TR4-5G?
The typical standby current is 80 μA.
- Is the LM2576D2TR4-5G Pb-free?
Yes, Pb-free packages are available.
- What are some common applications of the LM2576D2TR4-5G?
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.
- How does the LM2576D2TR4-5G protect against overcurrent conditions?
The LM2576D2TR4-5G includes cycle-by-cycle current limiting and thermal shutdown for protection against overcurrent conditions.
