LT1376CN8-5#PBF

Overview

The LT1376CN8-5#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 with a maximum output current of 1.5 A. The device accepts an input voltage range from 5 V to 25 V. It features a low static current of 20 uA and a shutdown capability. The component is housed in an 8-pin PDIP package designed for through-hole mounting, with an operating temperature range spanning from 0°C to +125°C.

Feature Summary

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

Applications

• Battery-powered systems requiring efficient step-down conversion
• Post-regulation stages for bus distribution networks
• General-purpose DC-to-DC conversion in industrial equipment

Procurement Notes

Verify the specific suffix #PBF confirms lead-free compliance and RoHS standards before procurement. Confirm the PDIP-8 package type matches your PCB footprint requirements. Ensure the fixed 5 V output aligns with system design needs as this variant does not support adjustable outputs. Check manufacturer documentation for any recent production changes or obsolescence notices.

Selection Notes

Select this component when a fixed 5 V output is required from an input voltage between 5 V and 25 V. The 500 kHz frequency is suitable for applications prioritizing smaller passive components over lower EMI. Consider the PDIP-8 package if through-hole assembly is mandated. Compare against the LT1376IN8-5#PBF if extended industrial temperature ranges are necessary, as the CN8 variant specifies a commercial temperature range.

Part Context

This part belongs to the LT1376 series of high-frequency buck regulators. It shares core topology and performance characteristics with other variants in the family, differing primarily in package style, temperature rating, and output voltage configuration. The CN8 designation specifically indicates the commercial temperature grade and PDIP packaging.

Replacement Considerations

LT1376IN8-5#PBF is a direct substitute offering identical electrical specifications but with an extended industrial temperature range.