LTC3789EGN#TRPBF

DC DC Switching Controllers Overview

The LTC3789EGN#TRPBF is a high-efficiency, synchronous buck-boost switching controller manufactured by Analog Devices. It operates with an input voltage range of 4V to 38V and supports output voltages from 0.8V to 38V. The device utilizes a single inductor architecture allowing VIN to be higher than, lower than, or equal to VOUT. Key electrical parameters include a maximum conversion efficiency of 98%, a programmable switching frequency lockable to 600kHz, and an integrated 5.5V LDO. It features four N-channel MOSFET drivers and is housed in a 28-pin SSOP package.

DC DC Switching Controllers Feature Summary

• Single inductor topology enables stable operation regardless of input versus output voltage relationships
• Synchronous rectification architecture provides high conversion efficiency up to 98%
• Integrated four-channel N-channel MOSFET driver eliminates external gate drive components
• Mode/PLLIN pin allows selection between pulse skip mode for low ripple or forced continuous mode for noise sensitivity

DC DC Switching Controllers Applications

• Automotive power systems requiring wide input voltage tolerance
• Telecommunications infrastructure power supplies
• High-power battery-powered equipment
• Industrial power management units

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'EGN' corresponds to the commercial temperature grade and SSOP-28 package configuration as defined in the official Analog Devices datasheet. Confirm that the '#TRPBF' designation indicates tape and reel packaging with lead-free finish. Cross-reference the manufacturer part number against current product availability status to ensure active manufacturing support before finalizing procurement plans.

DC DC Switching Controllers Selection Notes

Select this component when designing systems where the input voltage may fluctuate above, below, or equal to the required output voltage. The single inductor solution reduces component count compared to dual-inductor topologies. Ensure the application requires a synchronous design for optimal efficiency at high currents. Verify that the 600kHz lockable frequency aligns with system noise requirements and EMI constraints.

DC DC Switching Controllers Part Context

This part belongs to the LTC3789 family of high-performance buck-boost controllers released by Linear Technology, now part of Analog Devices. The EG variant specifically denotes the commercial temperature range operating within standard industrial environments. The device represents a specialized power management solution designed for applications demanding flexibility in voltage conversion ratios without sacrificing efficiency.

DC DC Switching Controllers Replacement Considerations

LTC3789EUFD#TRPBF offers identical electrical performance but utilizes a 28-lead QFN package instead of SSOP.