LTC3727IG-1#TRPBF

DC DC Switching Controllers Overview

The LTC3727IG-1#TRPBF is a high-efficiency, dual-phase synchronous step-down switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4V to 36V and provides two independent outputs adjustable from 800mV to 14V. The device supports up to 25A output current per phase at a switch frequency of 550kHz. It features a constant frequency current mode architecture with phase-lockable operation. Key electrical parameters include a maximum static current of 20µA and a working supply current of 670µA. The controller ensures precise regulation with a load adjustment of 0.1%. It functions within a temperature range of -40°C to +85°C and is housed in a 28-pin SSOP package.

DC DC Switching Controllers Feature Summary

• Dual-channel buck controller architecture driving all N-channel synchronous power MOSFET stages for high efficiency.
• Constant frequency current mode operation allows for phase-lockable frequencies up to 550kHz.
• Out-of-phase operation minimizes power loss and noise associated with input capacitor ESR.
• Integrated external frequency synchronization capability for system-wide clock alignment.

DC DC Switching Controllers Applications

• High-performance dual-output DC/DC conversion systems requiring synchronized phases
• Industrial equipment power supplies utilizing 12V and 5V rails
• Embedded systems needing efficient step-down regulation from 4V to 36V inputs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix designation when ordering, as the #TRPBF indicates tape-and-reel packaging which differs from the tube-packaged #PBF variant. Confirm that the requested part matches the exact model number including the trailing characters to ensure correct packaging and handling specifications. Cross-reference the manufacturer datasheet to validate that the component meets the required environmental and electrical standards for the intended application before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this controller when designing dual-phase synchronous buck converters requiring high efficiency and low input ripple. The out-of-phase operation is critical for minimizing input capacitor stress and EMI noise. Ensure the external MOSFETs can handle the 25A per phase current rating and that the PCB layout supports the 550kHz switching frequency. Verify that the application requires the specific 4V to 36V input range and 800mV to 14V output flexibility provided by this device.

DC DC Switching Controllers Part Context

The LTC3727-1 belongs to Analog Devices' family of high-performance dual step-down switching regulator controllers. It is designed to drive all N-channel synchronous power MOSFET stages, offering a robust solution for applications demanding high current and efficiency. The series is characterized by its constant frequency current mode architecture and phase-lockable features, making it suitable for complex power management tasks in industrial and embedded environments.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Users should consult official Analog Devices resources for potential alternatives or pin-compatible replacements if the LTC3727IG-1#TRPBF is unavailable.