LTC1148HVCS-5#TRPBF

Overview

The LTC1148HVCS-5#TRPBF is a high-efficiency synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.5 V to 20 V and provides a fixed 5 V output. The device delivers up to 700 mA of output current with a switching frequency of 250 kHz. Key electrical specifications include a quiescent current of 160 µA, a maximum load regulation of 60 mV, and operation within a temperature range of 0°C to +70°C. It is housed in a 14-pin SOIC package.

Feature Summary

• Synchronous buck topology for enhanced conversion efficiency
• Integrated power switch eliminates external component requirements
• Fixed 5 V output configuration simplifies circuit design
• Low quiescent current supports battery-powered applications

Applications

• Portable computer power supplies
• Hand-held equipment power management
• Battery-operated systems requiring efficient DC-DC conversion
• Industrial control modules

Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the HV variant rating matches your input voltage requirements, as it differs from standard versions. Ensure compatibility with the 14-SOIC footprint during PCB layout. Cross-reference the manufacturer part number directly with official Analog Devices documentation to avoid counterfeit components.

Selection Notes

Select this component when a fixed 5 V output is required from inputs between 3.5 V and 20 V. The 700 mA current limit suits moderate load applications. Consider the 250 kHz switching frequency for balancing size and noise. Verify thermal performance under full load conditions due to the SOIC package constraints.

Part Context

This part belongs to the LTC1148 family of high-frequency synchronous buck converters. It is designed for applications prioritizing efficiency and compactness. The HV designation typically denotes extended input voltage capabilities compared to standard variants. It serves as a power management solution for portable and industrial electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data.