SIM Card Interface Level Translator and Supply Voltage LDO

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Block Diagram

SIM Card Interface Level Translator and Supply Voltage LDO

NVT4555 Block Diagram


Key Features

  • Support SIM card supply voltages 1.8 V and 2.95 V
  • Input voltage range to LDO: 2.5 V to 5.25 V
  • Host microcontroller operating voltage range: 1.1 V to 3.6 V
  • Automatic level translation of I/O, RSTn and CLKn between SIM card and host side interface with capacitance isolation
  • Low current shutdown (EN = 0) mode < 1 μA
  • Supports clock speed beyond 5 MHz clock
  • Incorporates shutdown feature for the SIM card signals according to ISO-7816-3
  • ±8 kV IEC61000-4-2 ESD protected on all SIM card contact pins
  • Pb-free, Restriction of Hazardous Substances (RoHS) compliant and free of halogen and antimony (Dark Green compliant)
  • Available in 12-pin WLCSP package (1.19 mm x 1.62 mm x 0.56 mm (nominal), 0.4 mm pitch)

Part numbers include: NVT4555UK.


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