LM3578AMX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3578AMX/NOPB is a monolithic switching regulator IC manufactured by Texas Instruments. It integrates a 0.75 A power switch and operates in boost, buck, or buck-boost topologies with an input voltage range of 2 V to 40 V. The device features a fixed 24 kHz switching frequency and peak current mode control for rapid line transient response. It includes comprehensive protection mechanisms such as cycle-by-cycle current limiting, thermal shutdown, and undervoltage lockout. The component is housed in an 8-pin SOIC package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports versatile DC-DC conversion topologies including step-up, step-down, and combined buck-boost configurations.
• Integrates a high-current internal power switch capable of delivering up to 0.75 A output.
• Utilizes peak current mode control architecture to ensure stable operation and fast dynamic response.
• Incorporates built-in thermal shutdown and cycle-by-cycle current limiting for enhanced system reliability.

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable equipment requiring flexible voltage regulation
• Automotive electronics operating within wide input voltage ranges
• Industrial control systems utilizing single-supply architectures
• General-purpose DC-DC converter designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'AMX' against the official datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with the intended topology, as this component supports multiple modes. Confirm RoHS compliance status through manufacturer documentation before integration into regulated assemblies.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require a single inductor solution for both step-up and step-down operations. It is suitable for applications where a fixed low-frequency switching point reduces electromagnetic interference requirements. Consider the 0.75 A limit when sizing external components for higher load currents.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3578 family of switching regulators from Texas Instruments. It serves as a versatile power management solution for applications needing bidirectional voltage conversion capabilities without complex multi-stage designs. The device represents a consolidated approach to power regulation in space-constrained environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM3578AM/NOPB is listed as a manufacturer-recommended alternative. Verify pinout and electrical parameter equivalence before substitution. Other family members may offer different packaging or temperature grades but share core functional characteristics.

Voltage Regulators - DC DC Switching Regulators FAQ

What switching frequencies are supported by the LM3578AMX/NOPB?

The device operates at a fixed switching frequency of 24 kHz.

Does the LM3578AMX/NOPB support negative output voltages?

Yes, the component can be configured in buck-boost mode to generate negative output voltages from positive input sources.