LTC1628IUH#TRPBF

DC DC Switching Controllers Overview

The LTC1628IUH#TRPBF is a high-efficiency, dual-phase synchronous buck switching regulator controller manufactured by Analog Devices Inc. It operates within an input voltage range of 4 V to 36 V and delivers up to 20 A of output current across two independent channels. The device supports fixed switching frequencies between 150 kHz and 300 kHz, with a typical operating frequency of 220 kHz. It features a low quiescent current of 350 uA and maintains a load regulation of 0.1%. Designed for surface-mount installation, the component is housed in a 32-lead QFN package measuring 5x5 mm. It functions within a temperature range of -40°C to +85°C and includes integrated soft-start and power-good signaling capabilities.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture providing independent control for two synchronous buck outputs
• Integrated synchronous rectification drivers eliminating the need for external MOSFET gate drive circuits
• Programmable switching frequency allowing optimization for efficiency or transient response
• Built-in protection features including soft-start and power-good status indication

DC DC Switching Controllers Applications

• Point-of-load voltage regulation in telecommunications infrastructure equipment
• Power distribution systems for industrial automation controllers
• Voltage conversion stages in embedded computing platforms
• High-current supply rails for network interface cards

DC DC Switching Controllers Procurement Notes

Verify that the specific suffix #TRPBF corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the manufacturer designation matches Analog Devices Inc. to ensure component authenticity. Check RoHS compliance documentation against current regulatory standards for the target deployment region. Validate that the 32-QFN package dimensions align with the printed circuit board footprint specifications prior to final procurement authorization.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring two isolated or non-isolated step-down voltage rails from a single intermediate bus voltage. Ensure the external MOSFET selection supports the maximum 20 A current requirement while maintaining thermal performance within the specified ambient temperature limits. Verify that the desired switching frequency falls within the 150 kHz to 300 kHz operational window to guarantee stable loop compensation. Consider the 4 V minimum input voltage constraint when evaluating source power availability during startup conditions.

DC DC Switching Controllers Part Context

This component belongs to the LTC1628 series of synchronous buck regulators, designed for applications demanding high efficiency and compact form factors. It serves as a specialized power management integrated circuit within the broader PMIC category. The device complements other Analog Devices solutions by providing multi-phase capability in a small footprint, addressing the trend toward denser electronic assemblies in modern hardware designs.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.