LTC1622IS8#PBF

DC DC Switching Controllers Overview

The LTC1622IS8#PBF is a constant frequency current mode step-down DC/DC controller manufactured by Analog Devices Inc. It operates within an input voltage range of 2 V to 9.8 V and provides an adjustable output voltage with a maximum output current of 5 A. The device features a fixed switching frequency of 550 kHz and a typical quiescent current of 350 uA, reducing to 270 uA during operation. It offers excellent AC and DC load and line regulation, with a load regulation specification of 0.3%. The component is housed in an SOIC-8 package and supports a shutdown function for power management.

DC DC Switching Controllers Feature Summary

• Constant frequency current mode control architecture
• Adjustable output voltage capability
• Integrated shutdown functionality

DC DC Switching Controllers Applications

• Portable electronics requiring efficient step-down conversion
• Battery-powered systems needing low quiescent current
• General purpose DC/DC power supply designs

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence when sourcing. Confirm the IS8 variant meets industrial temperature specifications if required for your application environment. Ensure the SOIC-8 package dimensions align with your PCB footprint requirements before finalizing procurement decisions.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring a 5 A buck converter solution with a wide input voltage range up to 9.8 V. The 550 kHz switching frequency allows for compact external component sizing compared to lower frequency alternatives. Consider the 350 uA quiescent current for battery life optimization in standby modes utilizing the shutdown pin.

DC DC Switching Controllers Part Context

This part belongs to the LTC1622 series of low input voltage current mode step-down DC/DC controllers from Analog Devices. It is designed to provide precise power conversion for sensitive electronics. The IS8 designation specifies the industrial temperature grade and SOIC-8 package configuration, distinguishing it from commercial grade or alternative package variants within the same functional family.

DC DC Switching Controllers Replacement Considerations

The LTC1622CS8#PBF serves as a commercial grade equivalent with identical electrical characteristics but potentially different temperature ratings. Verify thermal performance and operating temperature ranges when substituting between IS8 and CS8 variants to ensure compatibility with your system's environmental constraints.