LM3578AM

Voltage Regulators - DC DC Switching Regulators Overview

The LM3578AM is a monolithic integrated circuit switching regulator manufactured by Texas Instruments. It functions as a step-down, step-up, or buck-boost converter capable of delivering up to 750mA of switch current. The device operates with an input voltage range from 2V to 40V and supports positive or negative output configurations. It utilizes peak current mode control for stable operation across various topologies. The component is housed in an 8-SOIC package and is designed for commercial temperature ranges.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports multiple switching topologies including buck, boost, and buck-boost configurations
• Utilizes peak current mode control architecture for enhanced stability
• Capable of generating positive or negative outputs from a single input source

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered systems requiring flexible voltage conversion
• Industrial control circuits needing isolated or non-isolated power rails
• Portable equipment utilizing single-cell battery inputs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation when sourcing replacements, as manufacturing changes may affect pin compatibility or thermal characteristics. Confirm RoHS compliance status through official datasheets, as older revisions may differ from current production standards. Cross-reference the manufacturer's recommended substitute part numbers to ensure functional equivalence in existing designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require bidirectional voltage conversion from a variable input source. Ensure the external inductor and diode ratings exceed the internal switch current limits. Verify that the required output polarity matches the intended topology configuration before finalizing the schematic design.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM3578 family of switching regulators, which are widely used in applications requiring efficient power conversion from low-voltage sources. It serves as a versatile solution for systems where input voltages fluctuate around the desired output level, eliminating the need for separate buck and boost regulators.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM3578AM/NOPB is the manufacturer-recommended replacement for the discontinued LM3578AM. Verify pinout compatibility and thermal performance when transitioning between these variants.