LT3742EUF#PBF

Overview

The LT3742EUF#PBF is a dual-channel, step-down DC/DC switching regulator controller designed to drive high-side N-channel power MOSFETs. It features a fixed 500kHz current-mode architecture with simple loop compensation and per-cycle current limiting. The device supports a wide input voltage range of 4V to 30V and an output voltage range from 0.8V to VIN. Operating temperatures span -40°C to 125°C. The component is housed in a 24-pin WFQFN exposed pad package.

Feature Summary

• Dual channel configuration for two-phase operation
• Out-of-phase control reduces required input capacitance
• Fixed frequency current mode architecture
• Per-cycle current limiting protection

Applications

• Industrial distributed power systems
• Telecommunications infrastructure
• Point-of-load regulation

Procurement Notes

Verify the complete part number including suffixes such as EUF#PBF against official Analog Devices documentation to ensure correct package type and temperature grade. Confirm that the specific ordering code matches the intended application requirements before finalizing procurement orders.

Selection Notes

Select this controller for applications requiring dual-phase buck conversion with reduced input ripple. Ensure external MOSFETs support the required voltage and current ratings. Verify that the 500kHz switching frequency aligns with EMI constraints and thermal management capabilities of the target design.

Part Context

This component belongs to the LT3742 series of dual synchronous step-down controllers. It is distinct from single-channel variants and higher-frequency models within the Analog Devices portfolio. The EUF package denotes a specific QFN footprint suitable for surface-mount assembly.

Replacement Considerations

LT3742EUH#PBF