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SIM Card Power Supply Level Shifter

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Overview

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 11.11 (11.12 and 11.18) and 3G mobile requirements (IMT-2000/3G UICC standard). The EN pin enables a low-current Shutdown Mode that extends battery life. The card power supply voltage (VCC_C) is selected using a single pin (VSEL).

  • This product is general usage and suitable for many different applications.

  • 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 Management per ISO7816-3 Specifications
  • Low-Profile 3x3mm MLP-16 Package

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Package Type

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MSL Type

MSL Temp (°C)

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Channels

Input Level

VCC Min (V)

VCC Max (V)

tpd Max (ns)

IO Max (mA)

Reference Price

FXLP4555MPX

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CAD Model

Pb

A

H

P

WQFN-16

1

260

REEL

3000

Y

1

CMOS

2.7

5.5

N/A

50

$0.1773

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