LT1376IS#PBF

Overview

The LT1376IS#PBF is a monolithic buck switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 5 V to 25 V and provides an adjustable output voltage. The device integrates a 1.5 A power switch, oscillator, and control logic within an SOIC-16 package. It functions at a fixed switching frequency of 500 kHz and draws a typical operating supply current of 2.5 mA. Quiescent current is specified at 20 uA. The component supports a shutdown mode and is rated for operation between -40°C and +125°C.

Feature Summary

• Integrates a 1.5 A power switch and all necessary oscillator, control, and logic circuitry on a single die.
• High switching frequency capability allows for significant reduction in the size of external passive components.
• Includes a dedicated shutdown pin to minimize power consumption during standby periods.

Applications

• Battery-powered systems requiring efficient step-down conversion
• Industrial equipment power supplies
• Portable instrumentation

Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature rating. Confirm RoHS compliance status through manufacturer declarations. Ensure the ordering part number matches the required pinout and electrical specifications for the target application design.

Selection Notes

Select this component when a compact solution is needed for converting higher voltages to lower levels. The integrated 1.5 A switch handles moderate load currents without external passives. The 500 kHz frequency balances efficiency with component size. Verify that the input voltage remains within the 5 V to 25 V range for proper regulation.

Part Context

This part belongs to the LT1376 series of high-frequency monolithic buck regulators. It shares functional similarities with other members like the LT1375 but differs in topology support and output configuration. The IS variant specifically denotes the industrial temperature range and SOIC-16 surface-mount packaging.

Replacement Considerations

LT1376IS8#PBF is a direct equivalent offering the same functionality in an 8-SOIC package.