LTC1266IS-5#PBF

DC DC Switching Controllers Overview

The LTC1266IS-5#PBF is a synchronous switching regulator controller from Analog Devices, designed for N-channel or P-channel MOSFETs. It supports Buck and Boost topologies with an adjustable output voltage. The device features automatic Burst Mode operation to maintain high efficiency at light loads. Key electrical parameters include a maximum switching frequency of 400 kHz, a quiescent current of 2.1 uA, and a shutdown current of 170 uA. It operates within a temperature range of -40°C to +85°C and is housed in a 16-SOIC package.

DC DC Switching Controllers Feature Summary

• Automatic Burst Mode operation for maintaining high efficiency at light loads
• Synchronous control capability for both N-channel and P-channel MOSFETs
• Supports Buck and Boost converter topologies
• Low power consumption with dedicated shutdown mode

DC DC Switching Controllers Applications

• Battery-powered portable equipment
• Notebook computers
• Handheld instruments
• Telecommunications systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free packaging compliant with RoHS standards. Confirm the -5 variant provides a fixed internal reference corresponding to the required output voltage configuration. Check current availability status as supply may be limited or discontinued depending on the region. Ensure the SOIC-16 package dimensions match the PCB footprint requirements.

DC DC Switching Controllers Selection Notes

Select this component when designing synchronous regulators requiring high efficiency across varying load conditions. The integrated Burst Mode makes it suitable for applications where standby power is critical. Consider the 400 kHz switching frequency limit for EMI constraints. Verify that the external MOSFETs are compatible with the drive capabilities of the controller.

DC DC Switching Controllers Part Context

This part belongs to the LTC1266 series of synchronous switching regulator controllers. The series is characterized by its ability to drive both N-channel and P-channel devices, offering design flexibility. The IS-5 designation specifies the industrial temperature grade and the specific voltage reference configuration within the family.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers: None.