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LTC1555IGN
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LTC1555IGN

  • Category:converter
  • Product Name:SIM card power supply and level translator
  • Manufacturers:LINEAR
  • Production Batch Number:08+
  • Encapsulation:SSOP-16
  • Stock Status:There is stock
  • Stock Quantity:3000
  • Minimum order quantity: 1
  • Details:Click here to find PDF information on the LTC1555IGN
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  • Product introduction

LTC1555IGN

SIM card power supply and level translator

peculiarity

  • The buck/boost charge pump generates 3V or 5V
  • Input voltage range: 2.6V to 6V
  • V of the controllerCCRange: 1.425V to 4.4V
  • > 10kV ESD for all SIM card pins
  • Short circuit and overtemperature protection
  • 3V to 5V signal level translator
  • Very low operating current: 40μA
  • Very low shutdown current:
  • Soft-start limits inrush current when turned on
  • 1MHz switching frequency
  • Available in a narrow 16-pin SSOP package

Typical applications

Typical application of the LTC1555L

description

The LTC ® 1555L provides power conversion and level translation and requires a low voltage GSM mobile phone 3V or 5V subscriber identification module (SIM card) interface. This section contains a patented buck/boost charge pump DC/DC converter that is regulated to be regulatedtubeThe V CC supply voltage of the SIM card. The input voltage ranges from 2.6V to 6V and can be connected directly to the battery. The output voltage may be beprogrammed 3V, 5V or connected directly to VINof pins.

An internal level translator allows 1.425V low consumables to interface with 3V and 5V SIM cards for the controller. The soft-start feature limits inrush current turn-on, alleviating start-up issues that can result when the input is provided by another low-power DC/DC converter. Battery life maximizes 40μA operating current and 1μA shutdown current. The smallest board area is a tiny 16-pin narrow SSOP package with only three small external capacitors required.

apply

  • SIM interface on GSM mobile phones
  • Smart card readers

andLTC1555IGNRelated ICs are:


Model Manufacturers lot number encapsulation illustrate
LTC1555IGN LINEAR 08+ SSOP-16 SIM card power supply and level translator

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