LTC1628CUH#PBF

DC DC Switching Controllers Overview

The LTC1628CUH#PBF is a dual synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 3.5V to 36V and supports output currents up to 3A per channel. The device features a fixed switching frequency of 360kHz and utilizes a 32-pin QFN package with an exposed pad for thermal management. It is designed for high-efficiency power conversion in applications requiring multiple regulated outputs.

DC DC Switching Controllers Feature Summary

• Dual-channel architecture providing independent control for two synchronous buck converters
• Integrated soft-start functionality to manage inrush current during startup
• Supports external N-channel MOSFETs for efficient power stage implementation
• Includes comprehensive protection features such as overcurrent and thermal shutdown

DC DC Switching Controllers Applications

• Industrial equipment power distribution systems
• Telecommunications infrastructure power supplies
• Embedded computing systems requiring multiple voltage rails
• Battery-powered devices with wide input voltage ranges

DC DC Switching Controllers Procurement Notes

Verify the specific suffix and package variant against official Analog Devices documentation to ensure compatibility with design requirements. Confirm RoHS compliance status and lead-free specifications prior to ordering. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and supply chain integrity. Ensure that the selected component meets all environmental and operational standards required for the target application.

DC DC Switching Controllers Selection Notes

Select this controller when designing systems requiring two isolated or non-isolated low-voltage outputs from a higher bus voltage. Consider the 360kHz switching frequency for balancing efficiency and passive component size. Evaluate thermal performance based on the QFN package's exposed pad capabilities. Ensure external MOSFET selection matches the controller's drive characteristics and current handling requirements for optimal system efficiency.

DC DC Switching Controllers Part Context

The LTC1628CUH#PBF belongs to the LTC1628 family of dual synchronous buck controllers. This series is engineered for high-efficiency power management in compact form factors. The CUH variant specifically denotes the commercial temperature range and QFN packaging, distinguishing it from other industrial or automotive grade options within the same functional family.

DC DC Switching Controllers Replacement Considerations

Direct replacements include the LTC1628IUH#PBF for extended temperature range applications. The LTC1628CG-PG#TRPBF offers a different SSOP package option. Verify pinout compatibility and electrical specifications before substituting any alternative components.