FSEM0365RNB

Voltage Regulators - DC DC Switching Regulators Overview

The FSEM0365RNB is an integrated high-voltage power switching regulator belonging to the Fairchild Power Switch (FPS) family. It combines a high-voltage SenseFET with a current-mode PWM controller IC, designed for offline switch-mode power supplies (SMPS). The device operates at a fixed frequency of 67 kHz and supports a maximum output current of 12 A. It features pulse-by-pulse over-current limiting, overload protection, over-voltage protection with a minimum threshold of 23 V, and internal thermal shutdown. The component utilizes a TO-220F package with four terminals.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-voltage SenseFET with a current-mode PWM controller for minimal external component requirements
• Provides precision fixed operating frequency control for stable switching performance
• Includes comprehensive protection mechanisms such as pulse-by-pulse over-current limiting and internal thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Offline switch-mode power supply designs
• General-purpose AC/DC conversion systems
• Power management circuits requiring integrated regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and marking against the official datasheet to ensure compatibility with the intended application. Confirm that the component meets all required safety and regulatory standards for your target market. Cross-reference the pinout and package dimensions with the manufacturer's documentation before integration into the final design.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a compact, integrated solution for offline power conversion. The built-in protections reduce the need for additional external circuitry. Ensure the input voltage range and load requirements align with the device's specified operational limits. Consider the thermal performance and packaging constraints when designing the heat dissipation strategy.

Voltage Regulators - DC DC Switching Regulators Part Context

This part is part of the FPS series, which includes variants like KA1L0365R and KA1H0365R with different operating frequencies. The series is engineered for high-performance offline SMPS applications, offering a balance of efficiency and reliability through integrated power and control functions in a single package.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same FPS family include KA1M0365R-TU, which shares similar functional characteristics. Verify electrical parameters and pin compatibility before substitution.