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LV5749V-MPB-E is listed in the DC DC Switching Controllers range at ChipApex. The manufacturer field lists onsemi. Its product description is IC REG CTRLR BUCK PWM 42V. Review the specifications below when checking this part for your BOM.
The LV5749V-MPB-E is a DC-DC switching controller IC from onsemi, designed for buck converter applications. It operates as a PWM regulator with a maximum input voltage of 42V. The component is housed in a tube package and functions as a dedicated regulator output controller for power management systems.
Verify the specific suffix MPB-E against the official datasheet to confirm package type and tape/reel specifications. Ensure the 42V rating aligns with system requirements. Confirm RoHS compliance status through the manufacturer's documentation before procurement.
Select this component when a 42V input capable buck controller is required. Verify that the PWM frequency and current drive capabilities meet the target inductor and MOSFET specifications. Ensure thermal management suits the intended operating environment.
This part belongs to onsemi's line of DC-DC switching controllers. It serves as a core control element in power conversion stages, distinct from complete switching regulators by providing only the control logic for external power switches.
Check for direct pin-compatible alternatives within the same family or comparable 42V buck controllers from other manufacturers. Verify electrical parameters such as switching frequency and control loop stability before substitution.
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