NCP4545IMNTWG

Overview

The NCP4545IMNTWG is an integrated load switch from onsemi, part of the ecoSWITCH family. It features a single output with a maximum continuous current of 10.5 A and a low on-resistance of 7 mΩ. The device operates within a supply voltage range of 3 V to 5.5 V and supports active-high enable control. It is housed in a compact QFN-18 package measuring 3 x 3 x 0.95 mm. The component is rated for an operating temperature range of 0°C to +70°C and has a maximum power dissipation of 1.98 W.

Feature Summary

• Integrates high-current switching capability with low on-resistance for efficient power distribution.
• Features active-high enable logic for straightforward system control integration.
• Designed with thermal protection mechanisms to ensure reliable operation under load conditions.

Applications

• Power distribution networks in portable electronic devices
• Load switching in industrial equipment systems
• Power management sections in automotive infotainment units

Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's latest datasheet to ensure compatibility with design requirements. Confirm that the component status aligns with long-term availability needs, as some variants may be subject to obsolescence notices. Cross-reference pin assignments and thermal pad specifications during PCB layout validation.

Selection Notes

Select this component when a single-channel load switch with high current capacity and low insertion loss is required. Consider the QFN-18 package size constraints and the 0°C to +70°C operating temperature range. Ensure the control interface matches the system's active-high enable signal requirements and that the 5.5 V maximum supply voltage fits the application profile.

Part Context

This part belongs to onsemi's ecoSWITCH series of integrated load switches. These components are designed to provide overcurrent protection and controlled power sequencing in various applications. The NCP4545 specifically targets high-current applications requiring compact footprints and efficient power delivery with minimal voltage drop across the switch.

Replacement Considerations

Check for direct substitutes within the NCP4545 series or other onsemi load switches with similar current ratings and package dimensions. Verify electrical parameters such as on-resistance and enable logic polarity before substitution.