LTC3890HUH#TRPBF

DC DC Switching Controllers Overview

The LTC3890HUH#TRPBF is a high-performance dual step-down switching regulator DC/DC controller from Analog Devices, designed to drive all N-channel synchronous power MOSFET stages. It features a constant frequency current mode architecture with a phase-lockable switching frequency range of 105 kHz to 835 kHz. The device supports an input voltage range of 4 V to 60 V and provides two independent outputs capable of delivering up to 15 A each. Operating in QFN-32 package, it maintains a low quiescent current of 60 µA and functions reliably within a junction temperature range of -55°C to 150°C.

DC DC Switching Controllers Feature Summary

• Dual output channels operate out-of-phase to minimize input capacitor ESR power loss and noise
• OPTI-LOOP compensation optimizes transient response across wide output capacitance and ESR variations
• Independent TRACK/SS pins enable synchronized ramping of output voltages during startup sequences

DC DC Switching Controllers Applications

• Automotive always-on systems requiring high efficiency and wide input voltage tolerance
• Distributed DC power systems utilizing multiple voltage rails
• Battery-operated digital devices where low quiescent current extends operational run time

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF confirms tape-and-reel packaging when sourcing. Confirm the HUH grade matches required thermal performance for your application environment. Cross-reference the manufacturer datasheet for exact pinout and electrical limits before finalizing design integration.

DC DC Switching Controllers Selection Notes

Select this component when dual isolated or non-isolated buck converters are needed from a single high-voltage rail. The wide operating temperature range suits harsh environments. Ensure external MOSFETs support the required current levels and switching speeds for the chosen frequency setting.

DC DC Switching Controllers Part Context

This part belongs to the PolyPhase series of dual synchronous step-down controllers. It shares architectural similarities with other LTC3890 variants but differs in packaging and temperature grading. The HU designation indicates extended industrial or automotive temperature capabilities compared to standard commercial grades.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include LTC3890IUH#TRPBF for commercial temperature ranges and LTC3890MPUH#TRPBF for military-grade specifications. Verify pin compatibility and thermal characteristics when swapping between these variants.