TXS4555 Overview
The TXS4555 is a plete Smart Identity Module (SIM) card solution for interfacing wireless baseband processors with a SIM card to store I/O for mobile handset applications. The device plies with ISO/IEC Smart-Card Interface requirements as well as GSM and 3G mobile standards. It includes a highspeed level translator capable of supporting Class-B (2.95 V) and Class-C (1.8 V) interfaces, a lowdropout (LDO) voltage...
TXS4555 Key Features
- Level Translator
- VCC Range of 1.65 V to 3.3 V
- VBATT Range from 2.3 to 5.5V
- Low-Dropout (LDO) Regulator
- 50-mA LDO Regulator With Enable
- 1.8-V or 2.95-V Selectable Output Voltage
- 2.3-V to 5.5-V Input Voltage Range
- Very Low Dropout: 100mV (Max) at 50mA
- Incorporates Shutdown Feature for the SIM Card Signals According to ISO-7816-3
- ESD Protection Exceeds JESD 22