LT1373HVCS8#PBF

Overview

The LT1373HVCS8#PBF is a high-voltage switching voltage regulator manufactured by Analog Devices Inc. It features an adjustable output voltage ranging from 2.42V to 27.52V and supports a maximum switch current of 4.5A. The device operates with an input voltage range of 5V to 32V and utilizes a fixed switching frequency of 500kHz. Designed for surface-mount applications, it is housed in an 8-SOIC package with a width of 3.90mm. The component supports Buck and SEPIC topologies, providing positive output configuration. It functions within a junction temperature range of 0°C to 125°C and includes shutdown capability for power management efficiency.

Feature Summary

• Supports Buck and SEPIC converter topologies for flexible power conversion architectures
• Capable of delivering up to 4.5A switch current for high-power applications
• Operates with a wide input voltage range suitable for various supply conditions
• Features adjustable output voltage control for precise regulation requirements

Applications

• Industrial power supply systems requiring robust voltage regulation
• Battery-powered equipment utilizing SEPIC topology for variable input sources
• Embedded systems needing high-current DC-DC conversion
• Automotive electronics operating within specified voltage limits

Procurement Notes

Verify the specific suffix HVCS8 against official Analog Devices documentation to confirm high-voltage rating and SOIC package compatibility. Ensure that the 4.5A current rating aligns with thermal management capabilities in the target design. Cross-reference the 500kHz switching frequency with external component selection guidelines provided in the datasheet. Confirm availability status through authorized distributors as stock levels may vary.

Selection Notes

Select this component when a high-current Buck or SEPIC regulator is required with an input voltage up to 32V. The 4.5A switch current capability distinguishes it from lower-current variants in the LT1373 family. Consider the 8-SOIC package size for PCB layout constraints. Evaluate thermal performance at full load given the 125°C junction temperature limit. Verify that the 500kHz frequency meets EMI and filter size requirements for the application.

Part Context

The LT1373HVCS8#PBF belongs to the LT1373 series of monolithic switching regulators from Analog Devices. This series is known for supporting multiple topologies including Buck, Boost, Cuk, Flyback, Forward, and SEPIC. The HV variant specifically addresses higher voltage input requirements compared to standard versions. The CS8 suffix indicates the SOIC-8 surface-mount package option, differentiating it from PDIP or other package types available in the same product family.

Replacement Considerations

LT1374HVIS8#PBF is listed as a parameter-equivalent substitute.