LTC4558EUD#TRPBF

Overview

The LTC4558EUD#TRPBF is a dual SIM/Smart Card power supply and interface device manufactured by Analog Devices Inc. It integrates power management and signal level translation for cellular, 3G, and GSM applications. The component operates with an operating supply current of 65 uA and is housed in a 20-QFN (3x3) package. It supports dual channels for simultaneous smart card interface requirements.

Feature Summary

• Integrates dual-channel power supply and interface capabilities for SIM and Smart Card applications
• Provides signal level translation suitable for cellular, 3G, and GSM systems
• Features micropower operation with low quiescent current consumption

Applications

• Cellular phone modules
• 3G wireless communication devices
• GSM terminal interfaces

Procurement Notes

Verify the specific ordering suffix TRPBF indicates tape and reel packaging configuration when sourcing. Confirm RoHS compliance status as indicated by manufacturer documentation. Ensure the 20-QFN package dimensions match the target PCB layout constraints. Cross-reference the full part number with official Analog Devices catalogs to validate availability and revision status before finalizing procurement orders.

Selection Notes

Select this component for designs requiring integrated dual smart card power and interface solutions. Consider the 65 uA operating supply current for battery-powered mobile applications. Evaluate the 20-QFN package footprint against available board space. Verify compatibility with required cellular standards such as GSM or 3G protocols during the initial design phase.

Part Context

This device belongs to the Analog Devices PMIC family specialized for mobile communication interfaces. It replaces discrete power management and level-shifting components, reducing bill-of-materials complexity. The dual-channel architecture allows independent control of two smart card slots within a single compact package form factor.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material. Consult Analog Devices official documentation for direct replacements or pin-compatible alternatives.