LT1506IS8-3.3#PBF

Overview

The LT1506IS8-3.3#PBF is a monolithic buck mode switching regulator manufactured by Analog Devices Inc., housed in an 8-pin SOIC package. It operates with an input voltage range of 4V to 15V and provides a fixed 3.3V output at up to 4.5A. The device integrates a 4.5A power switch, oscillator, and control logic, functioning at a 500kHz switching frequency. It is optimized for lower input voltage applications compared to the LT1374.

Feature Summary

• Integrates a high-current 4.5A power switch on the die
• Optimized for low input voltage operation between 4V and 15V
• Includes internal oscillator and control circuitry

Applications

• 5V to 3.3V step-down conversion
• Low input voltage DC/DC regulation
• Buck mode switching regulator circuits

Procurement Notes

Verify component authenticity through authorized Analog Devices channels. Confirm datasheet revision matches design requirements. Check RoHS compliance status as indicated in official documentation. Ensure storage conditions meet moisture sensitivity level specifications before assembly.

Selection Notes

Select this component when input voltages fall below the 5.5V threshold required by the LT1374. The 500kHz frequency allows for smaller passive components. Verify that the 4.5A current rating meets load demands. Consider thermal performance within the SOIC-8 package for the specific application environment.

Part Context

This part belongs to the LT1506 family of synchronous step-down regulators. It serves as a functional equivalent to the LT1374 but is specifically engineered for lower input voltage ranges. The IS8 suffix denotes the industrial temperature range and SOIC-8 package configuration.

Replacement Considerations

LT1374 requires higher input voltage (5.5V min). LT1506CR-SYNC is a compatible alternative in DDPAK package.