LTC4558 Datasheet Dual SIM/Smart Card Power Supply/Interface

Manufacturer: Linear Technology (now Analog Devices)

LTC4558 dual sim/smart card power supply/interface by Linear Technology (now Analog Devices) - Datasheet Preview

Datasheet Details

Part number	LTC4558
Manufacturer	Linear Technology (now Analog Devices)
File Size	142.11 KB
Description	Dual SIM/Smart Card Power Supply/Interface
Datasheet	LTC4558 Datasheet

General Description

The LTC®4558 provides the power conversion and signal level translation needed for advanced cellular telephones to interface with 1.8V or 3V subscriber identity modules (SIMs).

The device meets all requirements for 1.8V and 3V SIMs and contains LDO regulators to power 1.8V or 3V SIM cards from a 2.7V to 5.5V input.

The output voltages can be set using the two voltage selection pins and up to 50mA of load current can be supplied.

Overview

LTC4558 Dual SIM/Smart Card Power Supply and Interface.

Key Features

Power Management and Control for Two SIM Cards or Smart Cards.
Independent 1.8V/3V VCC Control for Both Cards.
Supports Simultaneous Powering of Both Cards.
Fast Channel Switching.
Automatic Level Translation.
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.
Meets EMV Fault Tolerance.

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