LT1777CS#TRPBF

Overview

The LT1777CS#TRPBF is a low noise, high efficiency step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 6.7V to 48V and provides an adjustable output voltage from 1.24V to 30V. The device delivers a switch current of up to 550mA at a fixed switching frequency of 100kHz. Packaged in a 16-SOIC (3.90mm wide) surface-mount format, it supports operation across a temperature range of 0°C to 125°C junction temperature.

Feature Summary

• Integrated low noise architecture designed to minimize ripple and interference in sensitive power applications.
• Capable of handling wide input voltage ranges up to 48V for robust performance in industrial environments.
• Includes internal soft-start functionality to limit inrush current during startup sequences.

Applications

• Industrial control systems requiring stable regulated power supplies
• Battery-powered equipment needing efficient DC-DC conversion
• General-purpose embedded systems utilizing buck topology

Procurement Notes

Verify the specific suffix designation against official documentation to confirm package type and reel specifications. Ensure that the requested variant matches the required thermal and electrical characteristics for the target application environment before finalizing procurement orders.

Selection Notes

Select this component when a non-synchronous buck converter is required for cost-sensitive designs. Consider the 100kHz switching frequency for balancing component size and efficiency. Verify that the load current requirements remain within the specified 550mA switch current limit for reliable operation.

Part Context

This part belongs to the LT1777 series of switching regulators from Analog Devices. It is distinct from synchronous variants and offers a standard buck configuration. The CS#TRPBF designation indicates a commercial temperature grade device supplied in tape and reel packaging for automated assembly processes.

Replacement Considerations

LT1777CS#PBF