LM2576T-015

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576T-015 is a monolithic integrated circuit from the LM2576 series, functioning as a step-down switching voltage regulator. Manufactured by onsemi, this component utilizes pulse width modulation (PWM) to regulate output voltage. It provides a fixed 15 V output with a maximum continuous output current of 3 A. The device operates within an input voltage range of 4 V to 40 V and features a standard switching frequency of 52 kHz. Designed for through-hole mounting, it is housed in a TO-220-5 package. The regulator supports an operating temperature range from -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a fixed internal feedback network to maintain a stable 15 V output without external adjustment components.
• Incorporates an internal high-frequency oscillator and PWM controller for efficient voltage regulation.
• Includes built-in thermal shutdown and current limiting protection mechanisms for operational safety.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load DC/DC conversion modules
• Pre-regulator stages for linear post-regulators
• Efficient buck converters for general-purpose power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official datasheets to confirm the fixed 15 V output configuration. Ensure the package type matches the required PCB footprint. Confirm compliance status and lead times directly with authorized distributors or the manufacturer, as availability may vary based on production cycles.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15 V output is required from an input voltage up to 40 V. It is suitable for applications needing up to 3 A of load current. Consider the TO-220-5 package for adequate thermal dissipation. Verify that the 52 kHz switching frequency aligns with the design's electromagnetic interference constraints and passive component selection.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 family of SIMPLE SWITCHER regulators, designed to replace traditional linear regulators for improved efficiency. The LM2576 series offers a simplified design approach with minimal external components. The 'T' designation typically indicates the through-hole TO-220 package variant, distinguishing it from surface-mount options.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Cross-reference with LM2576T-15/NOPB or LM2576HV-15/NOPB for equivalent functionality. Verify pin compatibility and thermal performance characteristics before substitution. Ensure the replacement part maintains the same fixed output voltage and current rating requirements.