LM1577K-15/883

Voltage Regulators - DC DC Switching Regulators Overview

The LM1577K-15/883 is a high-reliability switching regulator designed for military and aerospace applications. It operates with a maximum switching frequency of 63 kHz and delivers a maximum output current of 3.2 A. The device features a plastic TO-263 package with five pins, suitable for surface mount installation. It supports an input voltage range from 18 V to 60 V and provides a fixed nominal output voltage of 15 V. The component functions within a temperature range of -40°C to 125°C and utilizes voltage-mode control with pulse width modulation technology.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Military-grade reliability compliant with MIL-STD-883 standards
• High current capability up to 3.2 A for demanding power loads
• Robust input voltage tolerance supporting wide supply variations

Voltage Regulators - DC DC Switching Regulators Applications

• Aerospace power distribution systems
• Military electronic equipment power supplies
• Ruggedized industrial control units

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the authenticity of the MIL-STD-883 qualification documentation upon receipt. Confirm that the specific suffix matches the required military grade specifications. Ensure storage conditions maintain moisture sensitivity levels as defined in the datasheet. Cross-reference the manufacturer lot codes with authorized distribution channels to prevent counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when high reliability under extreme environmental conditions is required. It is appropriate for designs needing stable 15 V regulation at 3.2 A. Consider the TO-263 package for thermal management needs. Evaluate the 63 kHz switching frequency against electromagnetic interference constraints in sensitive military environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM157x series of switching regulators produced by National Semiconductor, now part of Texas Instruments. The series is characterized by its robust construction and suitability for harsh environments. The /883 suffix indicates compliance with military standard packaging and testing requirements, distinguishing it from commercial variants.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.