LT1111CN8-5#PBF

Overview

The LT1111CN8-5#PBF is a micropower DC/DC converter manufactured by Analog Devices Inc. It operates in both buck and boost topologies with a fixed 5V output. The device supports an input voltage range from 2V to 30V and delivers up to 1.5A switching current. It features a 72kHz switching frequency and low quiescent current of 300uA. The component is housed in an 8-pin PDIP package and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Supports buck and boost conversion topologies for flexible voltage regulation
• Micropower operation with low quiescent current consumption
• Fixed 5V output configuration suitable for standard logic levels

Applications

• Battery-powered systems requiring voltage step-up or step-down
• RS232 interface power supplies
• Computer peripheral power circuits

Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and PDIP packaging when sourcing. Confirm availability status as distribution channels may list limited stock or end-of-life statuses. Ensure the supplier provides official datasheets matching the Analog Devices part number to guarantee authenticity and correct pinout compatibility for your design.

Selection Notes

Select this component when a fixed 5V output is required from varying input sources between 2V and 30V. It is appropriate for designs needing buck-boost capability without external shutdown control. Consider the 8-pin DIP package for through-hole prototyping or manufacturing requirements where surface mount options are not feasible.

Part Context

This part belongs to the LT1111 series of micropower DC/DC converters from Analog Devices. The series includes variants with different output voltages and packages, such as the SOIC-8 version. The CN8 designation specifically identifies the commercial temperature range and PDIP package style within the broader product family.

Replacement Considerations

LT1111CS8-12#TR is a related variant offering 12V output in an SOIC-8 package.