IP4853CX24/LF,135

Specialized Overview

The IP4853CX24 is a bidirectional level shifter and voltage translator designed for SD, microSD, and MMC memory card interfaces. It integrates an EMI filter, ESD protection diodes, and a power supply unit (PSU) that regulates battery voltage to 2.9 V for the memory card. The device enables communication between a 1.8 V host-side processor and a 2.9 V compliant memory card. Fabricated using monolithic silicon technology in a WLCSP package with a 0.4 mm pitch, it supports data rates up to 50 MHz while suppressing radiation from digital signals near mobile phone frequencies.

Specialized Feature Summary

• Integrated EMI filters suppress high-frequency signal radiation
• Built-in ESD protection compliant with IEC 61000-4-2 Level 4 standards
• On-chip PSU supplies memory cards directly from the battery
• Bidirectional level shifting between 1.8 V host and 2.9 V card sides

Specialized Applications

• Secure Digital (SD) memory card interfaces
• microSD memory card interfaces
• Multi Media Card (MMC) interfaces
• Mobile phones and smartphones
• Digital cameras and laptop card readers

Specialized Procurement Notes

Verify the component status on the manufacturer's official website before design finalization, as product availability may change. Confirm the specific ordering suffix matches the required packaging format. Ensure all electrical parameters align with the system requirements during the verification phase.

Specialized Selection Notes

Select this component when a single integrated solution is needed for level shifting, power regulation, and noise suppression in memory card slots. It is suitable for designs requiring compliance with strict EMI and ESD standards without adding discrete components. Verify that the host operates at 1.8 V and the card requires 2.9 V.

Specialized Part Context

This part belongs to NXP Semiconductors' portfolio of interface protection and translation devices. It addresses the need for compact, highly integrated solutions in portable electronics where space constraints and signal integrity are critical. The device simplifies the design of memory card controllers by combining multiple functions into one small package.

Specialized Replacement Considerations

Check for updated versions or alternative packages within the same family. No direct public substitute part numbers are confirmed in the provided documentation.