LT1111CS8-12#TRPBF

Overview

The LT1111CS8-12#TRPBF is a micropower DC/DC converter manufactured by Analog Devices Inc., housed in an 8-SOIC surface-mount package. It operates as a switching voltage regulator with boost and buck topologies, delivering a fixed 12V output at up to 800mA. The device accepts input voltages from 2V to 30V and maintains a quiescent current of 300µA. Operating within a commercial temperature range of 0°C to +70°C, it utilizes a 72kHz switching frequency.

Feature Summary

• Supports both step-up (boost) and step-down (buck) conversion modes for flexible power management
• Maintains low power consumption through a minimal 300µA operating supply current
• Provides a fixed 12V output configuration suitable for standard logic levels

Applications

• Battery-powered systems requiring efficient voltage regulation
• Remote instrumentation utilizing single-cell primary power sources
• Portable devices where space-saving SMD packaging is required

Procurement Notes

Verify the specific suffix #TRPBF against official documentation to confirm tape-and-reel packaging and lead-free compliance status. Confirm availability as distributors may list restricted stock or obsolete status. Ensure the fixed 12V variant matches the design requirement rather than the adjustable version.

Selection Notes

Select this component when a fixed 12V output is required without external feedback resistors. Compare against the LT1110 series if lower input voltage operation down to 1.0V is necessary. Consider the LT1111CS8-12#PBF if tube packaging is preferred over tape-and-reel for prototyping.

Part Context

This part belongs to the LT1111 family of micropower DC/DC converters designed for applications demanding low quiescent current. It serves as a versatile solution for converting battery voltages to stable regulated outputs using minimal external components.

Replacement Considerations

LT1111CS8-12#PBF: Identical electrical specifications but supplied in tube packaging instead of tape-and-reel.