LTC1266CS-3.3#PBF

DC DC Switching Controllers Overview

The LTC1266CS-3.3#PBF is a synchronous buck switching regulator controller manufactured by Analog Devices Inc., designed for high-efficiency DC-DC conversion in surface-mount applications. It operates within an input voltage range of 3.5V to 18V and supports a maximum switching frequency of 400kHz. The device features a 16-SOIC package and provides a single positive output configuration with transistor drivers. It includes enable control characteristics and functions as a step-down converter with 100% maximum duty cycle capability, suitable for industrial and commercial environments operating between -40°C and 85°C.

DC DC Switching Controllers Feature Summary

• Synchronous rectification architecture utilizing N- or P-channel MOSFETs for enhanced efficiency
• Integrated enable pin for precise power management and system control
• Supports 100% duty cycle operation for minimal dropout voltage requirements
• Compatible with standard SOIC-16 surface mount packaging for automated assembly

DC DC Switching Controllers Applications

• Power supply modules compliant with Intel specifications for Pentium processors
• General-purpose buck converters requiring synchronous rectification
• Industrial control systems operating within specified temperature ranges
• Commercial embedded systems needing efficient step-down voltage regulation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates RoHS compliance and lead-free status when ordering. Confirm the package type matches the required PCB footprint, as variations exist between tube and tape-and-reel formats. Ensure the design accounts for the 16-SOIC thermal characteristics during implementation. Cross-reference the manufacturer datasheet for latest mechanical drawings and recommended soldering profiles to guarantee reliable assembly and long-term operational stability.

DC DC Switching Controllers Selection Notes

Choose this component when synchronous buck topology is required for improved efficiency over asynchronous designs. The wide input voltage range accommodates various bus voltages without additional pre-regulation stages. Consider the 400kHz switching limit when selecting external inductors and capacitors to balance size against ripple current requirements. Verify that the load current demands do not exceed the internal driver capabilities or require external gate drive enhancements for larger MOSFETs.

DC DC Switching Controllers Part Context

This part belongs to the LTC1266 family of synchronous switching regulators, which are optimized for driving both N-channel and P-channel MOSFETs. The CS grade denotes commercial temperature performance, while the IS variant extends the range to industrial levels. The base product number LTC1266 identifies the core controller functionality shared across different voltage outputs and package options within the series.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other parts from the LTC1266 family such as the LTC1266IS-3.3#PBF for industrial temperature ratings. Alternative controllers may require verification of pin compatibility and driver strength. Ensure any replacement maintains synchronous rectification support if efficiency is critical.