LV5749NV-TLM-E

DC DC Switching Controllers Overview

The LV5749NV-TLM-E is a buck regulator controller IC manufactured by onsemi. It functions as a positive output step-down switching regulator in power management applications. The device operates with an input voltage range from 8 V to 42 V and provides a maximum output current of 5 mA. It utilizes a 16-pin LSSOP or SSOP surface-mount package. The component supports a switching frequency up to 140 kHz and employs current-mode control architecture within a BICMOS process.

DC DC Switching Controllers Feature Summary

• Integrates current-mode control for efficient DC-DC step-down regulation
• Supports wide input voltage ranges suitable for various power systems
• Utilizes compact surface-mount packaging for space-constrained designs

DC DC Switching Controllers Applications

• General DC-DC switching regulator circuits
• Power management units requiring step-down conversion
• Embedded systems with limited output current requirements

DC DC Switching Controllers Procurement Notes

Verify the specific pinout and electrical characteristics against the official onsemi datasheet before integration, as variations may exist between similar model suffixes. Confirm that the 16-pin LSSOP/SSOP package dimensions match your PCB footprint constraints. Ensure compatibility with the required switching frequency and control loop stability parameters for your specific application design.

DC DC Switching Controllers Selection Notes

Select this component when a dedicated buck controller is preferred over integrated converters to allow external switch selection. Consider the 5 mA output limit for feedback network driving capabilities rather than load supply. Evaluate the 140 kHz maximum switching frequency against thermal and efficiency requirements compared to higher-frequency alternatives.

DC DC Switching Controllers Part Context

This part belongs to onsemi's portfolio of analog and mixed-signal power management integrated circuits. It falls under the category of switching regulators and controllers, specifically designed for buck topology applications. The series focuses on providing flexible control solutions for voltage regulation tasks in consumer and industrial electronics.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other onsemi buck regulator controllers such as the LV5747NTT-TLM-E, though pinouts and specific electrical limits must be verified. Cross-reference with generic current-mode buck controllers ensuring matching package types and input voltage ranges.