LM2577M-15

Voltage Regulators - DC DC Switching Regulators Overview

The LM2577M-15 is a SIMPLE SWITCHER step-up voltage regulator from Texas Instruments, designed for high-efficiency DC-DC conversion. It operates with an input voltage range up to 40V and provides a fixed 15V output. The device integrates a 3A switch and supports boost, flyback, and SEPIC topologies. It features a switching frequency of 52kHz, enabling the use of compact passive components. The unit includes thermal shutdown and current limit protection, ensuring reliable operation in industrial and consumer applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 3A power switch for high-current step-up applications
• Supports multiple converter topologies including boost, flyback, and SEPIC
• Includes built-in thermal shutdown and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated power
• Battery-powered devices needing voltage boosting
• General-purpose DC-DC conversion modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free status and package type. Ensure the ordering part number matches the required output voltage and package style. Confirm availability as older series parts may have limited stock or be subject to obsolescence notices.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15V output is required from a higher input voltage source. Consider the TO-263 package for surface mount assembly with adequate thermal dissipation. Evaluate the 52kHz switching frequency against EMI requirements and inductor size constraints compared to higher-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the SIMPLE SWITCHER family, which simplifies power supply design by integrating the controller and power switch. This series offers a balance of performance and ease of use for standard voltage regulation tasks without complex external compensation networks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible upgrades within the LM2577 series with different output voltages. Verify if newer generations like the LMR6401x offer improved efficiency or smaller packages for space-constrained designs.