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LTC4557 - Dual SIM/Smart Card Power Supply/Interface

Features

  • s s s s s s s.

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LTC4557 Dual SIM/Smart Card Power Supply and Interface FEATURES s s s s s s s DESCRIPTIO s s s s U APPLICATIO S s s s Power Management and Signal Level Translators for Two SIM Cards or Smart Cards Independent 1.8V/3V VCC Control for Both Cards Automatic Level Translation ISO7816, ETSI and EMV Compatible Dynamic Pull-Ups Deliver Fast Signal Rise Times* Built-In Fault Protection Circuitry Automatic Activation/Deactivation Sequencing Circuitry Low Operating/Shutdown Current >10kV ESD on SIM Card Pins Compatible with EMV Fault Tolerance Requirements Available in 16-Lead (3mm × 3mm) QFN Package The LTC®4557 provides power conversion and signal level translation needed for 2.5G and 3G cellular telephones to interface with 1.8V or 3V subscriber identity modules (SIMs).
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