LT1949-1EMS8#TRPBF

Overview

The LT1949-1EMS8#TRPBF is a synchronous boost/SEPIC switching regulator IC manufactured by Analog Devices. It operates with an input voltage range of 1.7V to 12V and provides an adjustable output voltage from 1.7V up to 28V. The device integrates a 1A power switch and functions at a fixed switching frequency of 600kHz. It utilizes an 8-pin MSOP package for surface mount installation.

Feature Summary

• Integrates a 1A synchronous power switch for efficient step-up or SEPIC conversion
• Supports wide input voltage ranges starting from 1.7V
• Provides adjustable output voltage capability up to 28V

Applications

• Battery-powered portable equipment requiring voltage boosting
• Systems utilizing single-cell lithium-ion or alkaline batteries
• Applications requiring SEPIC topology for varying input conditions

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm that the 1A current rating aligns with system load requirements. Ensure the 600kHz switching frequency is compatible with external inductor selection. Check for RoHS compliance status in the official datasheet before finalizing procurement specifications.

Selection Notes

Select this component for designs needing a compact solution with integrated high-current switching. The 8-MSOP package suits space-constrained layouts. Consider thermal performance under maximum load conditions. Verify that the required output voltage falls within the 1.7V to 28V adjustable range defined by the feedback network.

Part Context

This part belongs to the LT1949 family of DC-DC converters, which are designed for high-efficiency power management in portable applications. The series offers various configurations including boost and SEPIC topologies. The EMS8 designation specifies the MSOP package type used for surface-mount assembly.

Replacement Considerations

LT1949EMS8#TRPBF