LM2576T-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576T-5.0 is a monolithic integrated circuit step-down switching regulator from the TAEJIN SIMPLE SWITCHER series, designed for easy and convenient design of buck converters. It provides a fixed 5.0V output voltage with a guaranteed maximum output current of 3.0A. The device operates with a wide input voltage range up to 40V and utilizes a 52kHz fixed-frequency internal oscillator. It requires only four external components and includes features such as thermal shutdown and cycle-by-cycle current limiting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 5.0V output voltage with ±4% tolerance over line and load conditions
• Guaranteed 3.0A output current capability
• Wide input voltage range supporting up to 40V
• Integrated thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Simple high-efficiency step-down (buck) regulators
• Efficient pre-regulators for linear regulators
• On-card switching regulators
• Positive to negative converters (buck-boost)
• Power supply for battery chargers

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the component matches the specific TAEJIN manufacturer designation rather than generic TI equivalents. Confirm the package type is TO-220-5 through-hole. Ensure the suffix indicates the fixed 5.0V version. Check RoHS compliance status if required by project specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 5V output is required with up to 3A load capacity. It is suitable for replacing linear regulators to reduce heat dissipation. Consider the 52kHz switching frequency for inductor selection. Ensure input voltage does not exceed 40V. Verify thermal management requirements for the TO-220 package under full load.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2576 series of SIMPLE SWITCHER regulators. It is a legacy industry-standard buck converter topology. The TAEJIN variant maintains pin compatibility with other manufacturers' versions. It is commonly used in general-purpose power supplies and embedded system voltage regulation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2576T-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the typical standby current when using TTL shutdown?

The device features a low power standby mode with typical standby current of 50 µA when shutdown is active.

Does the LM2576T-5.0 require external frequency compensation?

No, the device includes internal frequency compensation, requiring only four external components for operation.