LTC1628CG#TRPBF

DC DC Switching Controllers Overview

The LTC1628CG#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 3.5 V to 36 V and provides two independent output channels, typically configured for 3.3 V or 5 V rails with up to 20 A total output current capability. The device features a fixed switching frequency between 150 kHz and 300 kHz, with a typical operating point at 220 kHz. It utilizes a 28-lead SSOP package and supports load regulation of 0.1%. The controller includes integrated soft-start, shutdown functionality, and low quiescent current operation of 350 uA, designed for applications requiring compact power solutions.

DC DC Switching Controllers Feature Summary

• Dual-phase synchronous buck topology for enhanced efficiency and reduced input ripple
• Integrated soft-start and shutdown control for system protection and sequencing
• Wide input voltage range supporting various bus architectures
• Fixed frequency operation simplifying external component selection

DC DC Switching Controllers Applications

• Point-of-load regulation for digital signal processors
• Power distribution networks in telecommunications equipment
• Industrial control systems requiring dual voltage rails
• Embedded computing platforms needing efficient step-down conversion

DC DC Switching Controllers Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the SSOP-28 footprint matches your PCB layout constraints. Cross-reference the datasheet revision date to confirm feature availability and electrical characteristics match your design requirements.

DC DC Switching Controllers Selection Notes

Select this component when dual isolated outputs are required from a single controller IC. The wide input range accommodates varying supply voltages without additional pre-regulation. Consider thermal management strategies given the SSOP package limitations compared to larger footprints. Evaluate the fixed frequency against EMI requirements for your specific application environment.

DC DC Switching Controllers Part Context

This part belongs to the LTC1628 family of high-efficiency synchronous buck regulators. It is distinct from single-phase variants by offering two independent control loops. The CG variant specifies commercial temperature range operation. The #TRPBF suffix denotes the specific reel packaging format used for automated assembly processes.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other dual-phase buck controllers from Analog Devices such as the LTC1629 series for higher current applications. Verify pin compatibility and control loop stability when transitioning between different controller families. Check for updated packaging options if SSOP-28 is no longer available.