LM2577T-ADJ/J7002816

Voltage Regulators - DC DC Switching Regulators Overview

The LM2577T-ADJ/J7002816 is a SIMPLE SWITCHER step-up DC/DC converter from Texas Instruments. It operates with an input voltage range of 3.5V to 40V and provides an adjustable output voltage starting at 1.23V, capable of reaching up to 60V in switch configurations. The device delivers a maximum switch current of 3A and functions at a fixed switching frequency of 52kHz. Packaged in a TO-220-5 through-hole housing, it supports boost, flyback, and forward converter topologies for positive single-output regulation across a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch rated for 3A continuous operation
• Internal oscillator providing stable 52kHz switching frequency
• Built-in thermal shutdown circuitry for overload protection
• Adjustable output voltage control via external feedback network

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supply systems requiring isolated or non-isolated step-up conversion
• Battery-powered equipment utilizing boost topology for voltage elevation
• Embedded systems employing flyback or forward converter architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix J7002816 against official manufacturer documentation to confirm exact package variant and environmental compliance status. Cross-reference the part number with the primary LM2577 series datasheet to ensure functional equivalence. Confirm availability status as this component family may be subject to discontinuation notices.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring high-current step-up conversion with minimal external components. Ensure the input voltage remains within the specified 3.5V to 40V range. Verify that the required output voltage does not exceed the 60V switch limit. Consider the TO-220-5 package for adequate thermal dissipation during high-load operations.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2577 SIMPLE SWITCHER family, designed for efficient DC-DC conversion. It integrates a power switch and control logic into a single IC, reducing board space compared to discrete solutions. The series is widely recognized for its robustness and simplicity in industrial and commercial power management applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2577T-ADJ/LF03 is documented as a parameter-equivalent substitute. Verify pin compatibility and thermal characteristics before implementation.