LT1738IG#PBF

AC DC Converters, Offline Switchers Overview

The LT1738IG#PBF is a switching regulator controller from Analog Devices Inc. designed to minimize conducted and radiated electromagnetic interference (EMI). It features slew rate control for ultralow noise performance, making it suitable for sensitive applications. The device supports boost and Cuk converter topologies with a fixed switching frequency of 250kHz. It operates within an industrial temperature range up to 85°C and is housed in a 20-pin package.

AC DC Converters, Offline Switchers Feature Summary

• Slew rate controlled architecture for ultralow noise and EMI reduction
• Supports boost and Cuk converter topologies
• Fixed 250kHz switching frequency operation

AC DC Converters, Offline Switchers Applications

• Sensitive analog circuits requiring low noise power supplies
• Communications equipment minimizing radiated emissions
• Medical instrumentation with strict EMI constraints

AC DC Converters, Offline Switchers Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance when ordering. Confirm the IG variant matches the required operating temperature range and package type for your design. Check current availability status as supply may be limited or subject to allocation by the manufacturer.

AC DC Converters, Offline Switchers Selection Notes

Select this component when EMI reduction is critical compared to standard controllers. Ensure the external components support the 250kHz frequency and boost/Cuk topology requirements. Compare against LT1737 if flyback isolation is needed instead of non-isolated boost or Cuk configurations.

AC DC Converters, Offline Switchers Part Context

This part belongs to the LT173x family of high-performance switching regulators. It complements other controllers like the LT1737 by offering specialized noise reduction features. The series targets applications where signal integrity is paramount, distinguishing itself through active slew rate management capabilities.

AC DC Converters, Offline Switchers Replacement Considerations

LT1737CS#PBF serves as a related alternative but differs in topology support, primarily focusing on isolated flyback converters rather than the boost/Cuk options available in the LT1738.