LM3578AMX/J7001347

Voltage Regulators - DC DC Switching Regulators Overview

The LM3578AMX is a monolithic switching regulator IC manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It supports buck, boost, and buck-boost topologies with a single positive or negative output capable of delivering up to 750mA switch current. The device operates from a 2V to 40V input range at a fixed 20kHz switching frequency. It features peak current mode control for rapid transient response and includes internal compensation. The component is rated for commercial temperatures between 0°C and 70°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports versatile buck, boost, and buck-boost converter configurations
• Utilizes peak current mode control architecture
• Integrates internal frequency compensation circuitry
• Provides protection against overcurrent conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable equipment requiring flexible voltage conversion
• Industrial systems needing isolated or non-isolated DC-DC regulation
• Automotive electronics operating within wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix J7001347 against official manufacturer documentation to confirm tape-and-reel packaging specifications and lot traceability requirements. Ensure compatibility with RoHS3 standards if environmental compliance is mandatory for the target assembly process.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require simultaneous support for step-up, step-down, and inverted voltage topologies within a compact footprint. The fixed 20kHz frequency allows for smaller passive components compared to higher-frequency alternatives, though it limits maximum switching speed.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3578 family of switching regulators, originally developed by National Semiconductor before its acquisition by Texas Instruments. The series is designed for general-purpose power management applications where flexibility in topology selection reduces bill-of-materials complexity.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM3578AM/NOPB is the manufacturer-recommended replacement for discontinued variants. Verify pinout compatibility and thermal performance characteristics before substituting into existing designs.