LTC3890MPGN-1#TRPBF

DC DC Switching Controllers Overview

The LTC3890MPGN-1#TRPBF is a high-performance synchronous step-down DC/DC controller from Analog Devices Inc., designed for dual-phase operation. It supports an input voltage range of 4V to 60V and drives all N-channel synchronous power MOSFET stages. The device features a constant frequency current mode architecture with a switchable frequency range of 105kHz to 835kHz, or 350kHz to 535kHz. It operates within a junction temperature range of -55°C to +150°C and is housed in a 28-pin SSOP package.

DC DC Switching Controllers Feature Summary

• Dual-phase synchronous buck control with independent output channels
• OPTI-LOOP compensation for optimized transient response across varying capacitance
• Integrated soft-start and tracking capabilities for controlled startup sequencing
• Low quiescent current design extending battery life in portable applications

DC DC Switching Controllers Applications

• Automotive always-on systems requiring wide input voltage tolerance
• Distributed DC power systems in industrial equipment
• Battery-operated digital devices prioritizing low power consumption
• High-density point-of-load regulation modules

DC DC Switching Controllers Procurement Notes

Verify the specific suffix '-1' against official Analog Devices documentation to confirm pinout and functional configuration, as variations exist within the family. Ensure compatibility with the required thermal management for the SSOP-28 package under maximum load conditions. Cross-reference the manufacturer part number directly with authorized distributors to avoid counterfeit components.

DC DC Switching Controllers Selection Notes

Select this component when dual isolated outputs are required from a single controller with precise phase alignment. The wide input voltage range suits applications with significant supply fluctuations. Consider the thermal performance of the SSOP package relative to higher-power QFN alternatives if heat dissipation is a primary constraint.

DC DC Switching Controllers Part Context

This controller belongs to the PolyPhase series, emphasizing efficiency through interleaved phase operation. It shares architectural similarities with other high-voltage buck controllers but is distinct in its dual-output capability and specific package footprint. The 'M' grade indicates extended industrial temperature ratings suitable for harsh environments.

DC DC Switching Controllers Replacement Considerations

LTC3890EUH#PBF offers similar functionality in a QFN package. LTC3890MPUH#TRPBF provides the same electrical characteristics in a larger QFN form factor. Verify pin-to-pin compatibility before substitution.