LX7309ILQ

DC DC Switching Controllers Overview

The LX7309ILQ is a versatile current-mode DC-DC controller designed for isolated and non-isolated power supply topologies. It supports Boost, Buck, Buck-Boost, Flyback, and Forward configurations with a single output. The device operates within a switching frequency range of 100 kHz to 1 MHz and features a maximum duty cycle of 50%. It delivers an output voltage of 12 V and can handle up to 5 A of output current. The component functions reliably across an operating temperature range from -40°C to +85°C. It is housed in a 24-TFQFN package with an exposed pad.

DC DC Switching Controllers Feature Summary

• Supports multiple converter topologies including isolated and non-isolated designs
• Utilizes low-resistance current-sensing scheme for accurate control
• Operates as a current-mode PWM controller

DC DC Switching Controllers Applications

• Isolated DC-DC converter designs
• Non-isolated power supply applications
• Industrial power management systems

DC DC Switching Controllers Procurement Notes

Verify the current lifecycle status before procurement, as sources indicate the product may be obsolete or transferred. Confirm availability through authorized distributors, as stock levels are reported as restricted or limited in certain regions. Ensure the specific suffix matches the required packaging format. Validate RoHS compliance documentation directly from the manufacturer's official records prior to integration into production schedules.

DC DC Switching Controllers Selection Notes

Select this controller when designing multi-topology power stages requiring flexible configuration options. The wide input frequency range allows optimization for efficiency versus size trade-offs. Ensure the thermal design accommodates the 24-QFN package constraints. Verify that the external component selection aligns with the 5 A output capability and the specific topology requirements chosen for the application circuit.

DC DC Switching Controllers Part Context

This component belongs to the Microchip Technology (formerly Microsemi) portfolio of Power Management ICs. It is categorized under DC-DC Switching Controllers. The part is manufactured by Microchip Technology, which acquired Microsemi. The LX7309 series is designed for robust performance in demanding power conversion environments.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Users should consult Microchip Technology's official obsolescence notices or cross-reference tools for verified alternatives if this component is discontinued.