LTC3890HGN-3#TRPBF

DC DC Switching Controllers Overview

The LTC3890HGN-3#TRPBF is a dual synchronous step-down switching regulator controller from Analog Devices, designed for high-performance power management. It operates with an input voltage range of 4V to 60V and supports two independent outputs adjustable from 800mV to 24V. The device delivers up to 15A output current per channel with a low quiescent current of 60µA. It features a switchable frequency between 105kHz and 835kHz and utilizes a constant frequency current mode architecture. Packaged in an SSOP-28 format, it ensures efficient power conversion with minimal noise.

DC DC Switching Controllers Feature Summary

• Dual-channel synchronous buck control driving N-channel MOSFETs
• Phase-shifted operation minimizes input capacitor ESR losses
• OPTI-LOOP compensation optimizes transient response across varying capacitance
• Independent TRACK/SS pins enable synchronized soft-start and tracking

DC DC Switching Controllers Applications

• Automotive always-on systems
• Battery-operated digital devices
• Distributed DC power systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF against the manufacturer's latest datasheet to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status directly with the supplier documentation. Check for any recent Product Change Notices (PCN) regarding material or assembly changes that may affect compatibility. Ensure the SSOP-28 footprint matches the target PCB design constraints before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when designing dual-rail power architectures requiring wide input voltage ranges up to 60V. The low 60µA quiescent current makes it suitable for battery-powered applications where standby efficiency is critical. The OPTI-LOOP feature simplifies design by accommodating various output capacitor types without complex compensation adjustments. Ensure the thermal requirements of the SSOP-28 package are met for the intended load currents.

DC DC Switching Controllers Part Context

This part belongs to the LTC3890 family of PolyPhase controllers, which are engineered for high-efficiency power delivery. The HGN-3 designation indicates the specific SSOP-28 package variant within this series. It shares architectural similarities with other members like the LTC3890EUH but differs in physical packaging and pin configuration. The family is characterized by its ability to drive multiple phases while maintaining tight regulation and fast transient response.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include the LTC3890EUH#PBF for QFN packaging variants. For broader replacements, consider the LTC3890MPUH#TRPBF for military-grade temperature ranges. Verify pinout compatibility and thermal dissipation characteristics when swapping between different package styles within the same functional family.