LTC1266CS-5#PBF

DC DC Switching Controllers Overview

The LTC1266CS-5#PBF is a synchronous switching regulator controller manufactured by Analog Devices Inc. It operates with an input voltage range of 3.5V to 18V and provides a fixed output configuration suitable for buck topologies. The device features a maximum switching frequency of 400kHz and supports 100% duty cycle operation. It utilizes a 16-SOIC package and includes enable control characteristics. The component is designed for positive output applications and functions within a temperature range of -40°C to 85°C.

DC DC Switching Controllers Feature Summary

• Synchronous rectification capability for N- or P-channel MOSFETs
• Automatic Burst Mode operation for high efficiency at light loads
• Fixed output voltage option for simplified design

DC DC Switching Controllers Applications

• Pentium processor power supply modules
• Intel module specification compliant power supplies
• General step-down DC/DC converter designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates RoHS compliance and lead-free status. Confirm the SOIC-16 package dimensions match your PCB footprint requirements. Ensure the fixed output variant aligns with system voltage needs, as other variants exist in the series. Check current availability status through authorized distributors.

DC DC Switching Controllers Selection Notes

Select this part when a fixed output buck controller is required. Compare against the LTC1266IS-3.3#PBF if a 3.3V output is needed instead. Consider the LTC1265 series for higher switching frequencies up to 700kHz. Verify that the 400kHz frequency meets EMI constraints for the target application.

DC DC Switching Controllers Part Context

This component belongs to the LTC1266 family of synchronous switching regulator controllers. It is distinct from the LTC1265 series, which offers different performance characteristics such as higher switching frequencies. The part is often used in demonstration circuits like DC064B for powering Pentium processors.

DC DC Switching Controllers Replacement Considerations

LTC1266CS-3.3#PBF serves as a substitute for 3.3V output requirements. LTC1266IS-3.3#PBF is available in an industrial temperature grade variant.