LT1375IS8-5#PBF

Overview

The LT1375IS8-5#PBF is a monolithic buck mode switching regulator manufactured by Analog Devices Inc. It operates at a fixed switching frequency of 500 kHz and provides a fixed output voltage of 5 V. The device supports an input voltage range from 5 V to 25 V and delivers an output current of 1.2 A. It features a quiescent current of 2.5 mA and includes shutdown functionality. The component is housed in an 8-SOIC package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a 1.5A switch with oscillator, control, and logic circuitry on a single die
• High switching frequency enables significant reduction in external component size
• Includes shutdown capability for power management

Applications

• Typical application circuits for 1.5A, 500kHz step-down switching regulators
• Designs requiring compact DC-DC conversion solutions
• Power supply architectures utilizing the LT1375 family reference designs

Procurement Notes

Verify the specific suffix against official datasheets to confirm pinout and electrical characteristics match your design requirements. Confirm RoHS compliance status through manufacturer documentation before integration. Ensure the SOIC-8 package dimensions align with your PCB footprint specifications. Cross-reference the part number with authorized distributors to validate authenticity and availability status.

Selection Notes

Select this component when a fixed 5V output is required from a 5V to 25V input source. The 500kHz frequency is suitable for applications prioritizing smaller passive components over ultra-low noise. Consider the 1.2A output limit and 2.5mA quiescent current for efficiency calculations. Verify thermal performance within the specified operating temperature range for your enclosure constraints.

Part Context

This part belongs to the LT1375 series of monolithic buck switching regulators. It shares architectural similarities with the LT1376 but differs in output configuration and package options. The series is designed for high-frequency operation to minimize external component count. It is categorized under PMIC - Power Management ICs and specifically as a Step Down Switching Regulator.

Replacement Considerations

LT1375IS8#PBF is listed as a parameter equivalent alternative.