LTC1478CS#PBF

Overview

The LTC1478CS#PBF is a high-side switch integrated circuit manufactured by Analog Devices (formerly Linear Technology). It features four independent channels in an SOIC-8 package. The device operates with a nominal supply current of 120μA and supports an input voltage up to 10V. It provides a maximum output current of 1A per channel with a typical on-resistance of 70mΩ. The component includes fixed current limiting and over-temperature fault protection, functioning within a temperature range of 0°C to +70°C.

Feature Summary

• Integrates four independent high-side switches for multi-channel load control
• Includes built-in fixed current limiting and over-temperature fault protection mechanisms
• Operates with low nominal supply current for efficient power management

Applications

• Battery-powered portable equipment requiring multiple switched loads
• Industrial systems needing isolated high-side switching capabilities
• Automotive electronics utilizing robust fault protection features

Procurement Notes

Verify the manufacturer designation as Analog Devices or Linear Technology on the component marking. Confirm the SOIC-8 package type and the specific suffix #PBF for lead-free compliance. Ensure the operating environment remains within the specified 0°C to +70°C range to maintain performance integrity and avoid triggering thermal shutdown protections.

Selection Notes

Select this component when designing circuits requiring multiple independent high-side switches with integrated protection. It is suitable for applications demanding low quiescent current and reliable fault handling. Consider the 70mΩ on-resistance for power dissipation calculations. Verify that the required load current does not exceed the 1A limit per channel under all operating conditions.

Part Context

This part belongs to the LTC1478 series of high-side switch ICs from Analog Devices. It is designed for applications requiring multiple switched outputs with enhanced safety features. The series is commonly used in portable devices and industrial controls where space efficiency and reliability are critical. The SOIC-8 package allows for compact PCB layouts.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Analog Devices resources for cross-reference data before implementation.