Fairchild Semiconductor
FSA4157A
Low Voltage 1 Ohm SPDT Analog Switch

General Description

FSA4157 and FSA4157A are high performance Single Pole/Double Throw (SPDT) analog switches. Both devices feature ultra low RON of 1.15 ohm maximum at 4.5V VCC and will operate over the wide VCC range of 1.65V to 5.5V for FSA4157, and 2.7V to 5.5V for FSA4157A. The device is fabricated with sub-micron CMOS technology to achieve fast switching speeds and is designed for break-before-make operation. The select input is TTL level compatible.

The FSA4157A features very low quiescent current even when the control voltage is lower than the VCC supply. This feature services the mobile handset applications very well allowing for the direct interface with baseband processor general purpose I/Os.

Features

  • FSA4157A Features Lower ICC when the S Input is Lower Than VCC
  • Maximum 1.15W On Resistance (RON) at 4.5V VCC
  • 0.3W max RON Flatness at 4.5V VCC
  • Space-Saving 6-lead Pb-Free MicroPak™ and SC70 Packages
  • Broad VCC Operating Range:

    • FSA4157: 1.65V to 5.5V

    • FSA4157A: 2.7V to 5.5V

  • Fast Turn-On and Turn-Off Time
  • Break-Before-Make Enable Circuitry
  • Over-Voltage Tolerant TTL Compatible Control Circuitry

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Product Status/Pricing/Packaging      buy now

ProductProduct statusEco StatusPricing*Package typeLeadsPacking methodPackage DrawingPackage Marking Convention**
FSA4157AL6XFull ProductionRoHS Compliant$0.243MicroPak6TAPE REEL PDFLine 1: EU
FSA4157AP6Full ProductionRoHS Compliant$0.429SC706TAPE REEL PDFLine 1: &E&Y (Binary Calendar Year Coding)
Line 2: &OB57&C Line 3: &.&O&V
FSA4157AP6XFull ProductionRoHS Compliant$0.179SC706TAPE REEL PDFLine 1: &E&Y (Binary Calendar Year Coding)
Line 2: &OB57&C Line 3: &.&O&V
* Fairchild 1,000 piece Budgetary Pricing
** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product FSA4157A is available. Click here for more information .

Models

Package & leadsConditionTemperature rangeVcc rangeSoftware versionRevision date
HSPICE
MicroPak-6Fast-40°C to 85°C2.7V to 5.5V2001.4Oct 21, 2004
Typical-40°C to 85°C2.7V to 5.5V2001.4Oct 21, 2004
Slow-40°C to 85°C2.7V to 5.5V2001.4Oct 21, 2004
SC70-6Typical-40°C to 85°C2.7V to 5.5V2001.4Oct 21, 2004
Slow-40°C to 85°C2.7V to 5.5V2001.4Oct 21, 2004
Fast-40°C to 85°C2.7V to 5.5V2001.4Oct 21, 2004

Application Notes

AN-5064: Low-ICCT Analog Switches for Ultra-Portable Designs (52 K) Oct 03, 2008
AN-5064SC: Simplified Chinese - AN-5064SC - Low Icct Analog Switches for Ultra-Portable Designs (130 K) Oct 03, 2008
AN-5064TC: Traditional Chinese - AN-5064TC - Low ICCT Analog Switches for Ultra-Portable Designs (119 K) Oct 03, 2008
 


Qualification Support

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Product
FSA4157AL6X
FSA4157AP6
FSA4157AP6X


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