ML4854ITX

Overview

The ML4854ITX is a specialized power management integrated circuit manufactured by Fairchild Semiconductor, now part of ON Semiconductor. It functions as an adjustable, low-current controller designed for two-cell boost applications. The device operates within a supply voltage range of 1.6V to 4.5V and draws a quiescent current of 85µA. It supports an operating temperature range from -40°C to 85°C (TA). The component is housed in an 8-TSSOP package and carries a Moisture Sensitivity Level (MSL) rating of 3, corresponding to 168 hours of floor life.

Feature Summary

• Designed specifically for two-cell boost converter topologies
• Operates with low quiescent current consumption
• Supports wide input voltage ranges suitable for battery-powered systems

Applications

• Portable electronic devices requiring efficient power conversion
• Battery-operated equipment utilizing two-cell configurations
• Low-power boost regulator circuits

Procurement Notes

Verify the manufacturer origin, noting that Fairchild Semiconductor was acquired by ON Semiconductor. Confirm the specific suffix ITX corresponds to the 8-TSSOP package and tape-and-reel packaging format. Check RoHS compliance status as documentation may vary or be marked not applicable depending on the production batch. Ensure the MSL rating of 3 is consistent with storage and handling requirements.

Selection Notes

Select this component when designing for two-cell boost architectures requiring low standby current. Consider the 8-TSSOP package constraints for PCB layout. Evaluate the 85µA quiescent current against modern ultra-low-power alternatives if extended battery life is critical. Verify compatibility with the required input voltage range of 1.6V to 4.5V for the target application.

Part Context

The ML4854 series belongs to Fairchild's portfolio of specialized power management ICs. Following the acquisition of Fairchild by ON Semiconductor, these parts are distributed under the ON Semiconductor brand. The ML4854ITX represents the surface-mount variant of the ML4854 family, tailored for compact designs in portable electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-reference with ON Semiconductor documentation for potential equivalents.