LM2576T-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576T-12 is a monolithic integrated circuit step-down switching regulator from the TAEJIN LM2576 series. It provides a fixed 12V output with a guaranteed 3.0A load capability and excellent line and load regulation. The device operates with a wide input voltage range, utilizing a 52kHz fixed-frequency internal oscillator for high efficiency. Designed as a replacement for linear regulators, it requires only four external components and includes thermal shutdown and current limit protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 12V output version within the LM2576 series
• Capable of driving a 3.0A load with high efficiency
• Includes TTL shutdown capability for low power standby mode
• Features thermal shutdown and cycle-by-cycle current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Simple high-efficiency step-down (buck) regulator circuits
• Efficient pre-regulator for linear regulators
• On-card switching regulators
• Power supply for battery chargers

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the component is sourced directly from TAEJIN Technology Co. or authorized distributors to ensure authenticity. Confirm the package type matches the required TO-220-5 through-hole specification. Check for RoHS compliance status if environmental regulations apply to your assembly process. Ensure the datasheet revision aligns with your design requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 12V output is required at up to 3.0A. It is suitable for designs needing a simple buck converter solution with minimal external components. Consider the 52kHz switching frequency for inductor selection. Verify input voltage ranges fit the application's supply constraints. This model replaces older linear regulator designs to reduce heat dissipation needs.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2576 series of SIMPLE SWITCHER regulators. The series offers multiple fixed output voltages including 3.3V, 5.0V, 12V, and 15V, alongside an adjustable version. The LM2576T-12 specifically targets applications requiring a stable 12V rail. It is part of a widely used family of buck converters known for ease of design and robust protection features.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include other manufacturers' LM2576T-12 variants such as those from Texas Instruments or onsemi. Cross-reference pinouts and thermal characteristics when substituting. Ensure the alternative maintains the 3.0A current rating and 12V fixed output. Verify compatibility with existing inductor selections due to the shared 52kHz frequency.