LT1108CS8#PBF

Overview

The LT1108CS8#PBF is a micropower DC/DC converter manufactured by Analog Devices Inc. It operates in boost, buck, or inverting topologies with an input voltage range of 2V to 30V. The device delivers a fixed 5V output at up to 800mA. Key electrical parameters include a quiescent current of 110µA and a switching frequency of 19kHz. It functions within a temperature range of 0°C to +70°C and is housed in an 8-pin SOIC package.

Feature Summary

• Supports versatile step-up, step-down, and inverting conversion modes
• Requires only four external components for operation
• Designed for low power consumption applications

Applications

• Battery-powered systems requiring voltage regulation
• Portable electronic devices
• Microprocessor power supplies

Procurement Notes

Verify the specific suffix against official documentation to confirm pinout and output voltage configuration. Ensure compatibility with required thermal management for the SOIC-8 package. Confirm RoHS compliance status through the manufacturer's latest environmental declaration before integration into regulated equipment designs.

Selection Notes

Select this component when a single-output regulator supporting multiple topologies is required. It is suitable for designs needing fixed 5V output from varying input sources. Consider the 19kHz switching frequency for EMI constraints and the 800mA current limit for load requirements.

Part Context

This part belongs to the LT1108 series of micropower DC/DC converters. It shares functional similarities with other variants like the LT1108CS8-12 but differs in fixed output voltage settings. The series is characterized by minimal external component counts and broad input voltage flexibility.

Replacement Considerations

LT1108CS8-12#PBF: Offers a fixed 12V output instead of 5V while maintaining similar topology and package.