LT1108CS8-5#TRPBF

Overview

The LT1108CS8-5#TRPBF is a micropower DC/DC converter manufactured by Analog Devices Inc. It operates in Buck, Boost, or Inverting topologies with an input voltage range of 2V to 30V. The device provides a fixed 5V output at up to 400mA. Key electrical parameters include a quiescent current of 110µA and a switching frequency of 19kHz. It is housed in an 8-pin SOIC package and functions within a temperature range of 0°C to +70°C.

Feature Summary

• Versatile topology supporting step-up, step-down, and inverting configurations
• Micropower operation with low quiescent current consumption
• Fixed 5V output capability requiring minimal external components

Applications

• Palmtop computer logic power supplies
• Battery-powered portable electronics
• General-purpose DC/DC conversion in space-constrained designs

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the full part number against official distributor catalogs to avoid counterfeit parts.

Selection Notes

Select this component for applications requiring flexible buck-boost-inverting functionality from a single IC. It is suitable where low standby current is critical. Consider the 19kHz switching frequency for EMI constraints. Verify that the 400mA output current meets load requirements.

Part Context

This part belongs to the LT1108 series of micropower DC/DC converters. It shares the core architecture with variants offering different fixed outputs or adjustable settings. The CS8 designation specifies the commercial temperature grade and SOIC-8 package type used across the family.

Replacement Considerations

LT1108CS8-5#PBF is a tube-packaged equivalent with identical electrical specifications.