LM3578AM/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3578AM/NOPB is a monolithic integrated circuit switching regulator designed for buck, boost, and buck-boost topologies. It operates with an input voltage range of 2V to 40V and provides a maximum switch current of 750mA. The device features a fixed 20kHz switching frequency and supports positive or negative output configurations. It is housed in an 8-SOIC package and functions within a commercial temperature range of 0°C to 70°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Supports versatile power conversion topologies including step-down, step-up, and combined buck-boost operations.
• Enables flexible system design by accommodating both positive and negative output voltage polarities.
• Integrates internal compensation and control logic for simplified external component requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable devices requiring efficient voltage regulation
• Industrial systems utilizing wide input voltage ranges
• Automotive electronics operating under varying supply conditions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix designation against official Texas Instruments documentation to confirm pinout compatibility and electrical specifications. Confirm that the component meets all required environmental standards for the intended deployment environment before finalizing procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require bidirectional voltage conversion capabilities from a single IC. Ensure the application demands do not exceed the 750mA switch current limit. Verify that the 20kHz fixed frequency aligns with electromagnetic interference constraints and efficiency targets.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3578 family of switching regulators manufactured by Texas Instruments. It serves as a direct replacement for the previously discontinued LM3578AM variant. The NOPB suffix indicates compliance with lead-free manufacturing processes while maintaining identical functional characteristics to the original specification.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM3578AM/NOPB is the manufacturer-recommended substitute for the obsolete LM3578AM. Both parts share identical electrical parameters and pin configurations, ensuring drop-in compatibility without requiring schematic modifications.

Voltage Regulators - DC DC Switching Regulators FAQ

What switching frequencies are supported by the LM3578AM/NOPB?

The device operates at a fixed switching frequency of 20kHz.

Can the LM3578AM/NOPB generate negative output voltages?

Yes, the regulator supports both positive and negative output configurations depending on the external circuit topology.