FXLP4555 Datasheet - Fairchild Semiconductor

FXLP4555 1.8V / 3.0V SIM Card Power Supply and Level Shifter

The FXLP4555 is a level-shifter analog circuit designed to translate the voltages between a SIM card and an external baseband. A built-in LDO-type DC-DC converter allows the FXLP4555 to drive 1.8V and 3.0V SIM cards. The device fulfills the ISO7816-3 smart-card interface standard as well as GSM 11.1.

FXLP4555 Features

* Supports 1.8V or 3.0V SIM Cards LDO Supplies >50mA Under 1.8V and 3.0V Built-in Pull-up Resistor for I/O Pin in Both Directions ESD Protection: 8kV (Human Body Model, According to ISO-7816 Specifications) Supports Clock  5MHz Supports “Clock Stop” Power Man

FXLP4555-FairchildSemiconductor.pdf