LTC1266IS-3.3#PBF

DC DC Switching Controllers Overview

The LTC1266IS-3.3#PBF is a synchronous buck switching regulator controller manufactured by Analog Devices Inc., housed in a 16-SOIC package. It features automatic Burst Mode operation for high efficiency at light loads and supports input voltages from 3.5V to 18V. The device operates with a maximum switching frequency of 400kHz and includes an enable control feature. Designed for surface mount installation, it functions within a temperature range of -40°C to 85°C.

DC DC Switching Controllers Feature Summary

• Synchronous step-down topology with integrated control for external N-channel MOSFETs
• Automatic Burst Mode operation maintains high efficiency across varying load conditions
• Fixed 3.3V output voltage configuration with positive output type
• Enable pin functionality allows for system power management and shutdown

DC DC Switching Controllers Applications

• Point-of-load regulation for digital logic circuits
• Power supply stages in portable battery-operated devices
• Voltage conversion in embedded systems requiring high efficiency at light loads

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when ordering. Confirm the IS variant meets industrial temperature requirements. Ensure the fixed 3.3V output matches the target design specifications before procurement. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

DC DC Switching Controllers Selection Notes

Select this component when a fixed 3.3V output is required without external feedback resistors. It is suitable for designs prioritizing light-load efficiency through Burst Mode operation. Consider the 16-SOIC package constraints and thermal performance for the intended application environment. Verify that the input voltage range covers the system's operational requirements.

DC DC Switching Controllers Part Context

This part belongs to the LTC1266 series of synchronous switching regulator controllers. The series is designed for single-supply applications, typically converting higher voltages to lower levels like 3.3V or 5V. The IS designation indicates industrial temperature rating, while the PBF suffix denotes RoHS compliance.

DC DC Switching Controllers Replacement Considerations

Check for direct pin-compatible alternatives within the same family, such as the adjustable LTC1266IS#PBF, if voltage flexibility is needed. Verify that any substitute maintains the 400kHz switching frequency and Burst Mode capability.