The Intersil ISL54053 device is a low ON-resistance, low voltage, bidirectional, single pole/double throw (SPDT) analog switch designed to operate from a single +1. 8V to +5. 5V supply. Targeted applications include battery powered equipment which benefit from low rON (0. 8Ω) and fast switching speeds (tON = 24ns, tOFF = 10ns). The digital logic input is 1. 8V logic compatible when using a single +3. 0V supply. Cell phones, for example, often face ASIC functionality limitations. The number of analog input or GPIO pins may be limited and digital geometries are not well suited to analog switch performance. This part may be used to mux-in additional functionality while reducing ASIC design risk. The ISL54053 is offered in the 6 Ld 1. 2mmx1. 0mmx0. 5mm µTDFN and 6 Ld SOT-23 packages, alleviating board space limitations. The ISL54053 is a committed SPDT that consists of one normally open (NO) and one normally closed (NC) switch. This configuration can also be used as a 2-to-1 multiplexer.


  • Drop In replacement for the NLAS5123
  • ON-resistance (rON)
  • VCC = +5.0V: 0.8Ω
  • VCC = +3.0V: 1.1Ω
  • VCC = +1.8V: 2.3Ω
  • rON matching between channels: 0.004Ω
  • rON flatness (+4.5V supply): 0.25Ω
  • Single supply operation: +1.8V to +5.5V
  • Fast switching action (+4.5V supply)
  • tON: 24ns
  • tOFF: 10ns
  • Guaranteed break-before-make
  • ESD HBM rating: >6kV
  • 1.8V CMOS logic compatible (+3V supply)
  • Available in 6 Ld µTDFN and 6Ld SOT-23 Packages
  • Pb-free (RoHS compliant)


  • Battery powered, handheld, and portable equipment Cellular/mobile phones Pagers Laptops, notebooks, palmtops
  • Portable test and measurement
  • Medical equipment
  • Audio and video switching

tuneProduct Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Last Time Buy SOT23 Reel 3000
Last Time Buy uTDFN Reel 3000


Title language Type Format File Size Date
Datasheets & Errata
star ISL54053 Datasheet Datasheet PDF 737 KB
PLC21035 - End of Life Notice Product Life Cycle Notice PDF 1.17 MB
PCN13022 - Alternate Manufacturing Site for Assembly of the Listed Intersil SOT23 Packaged Products - Carsem (CAM) Ipoh, Malaysia Product Change Notice PDF 557 KB
PCN10114 - Part Marking Configuration Change for Intersil TDFN, uTDFN, and uTQFN Packaged Products Product Change Notice PDF 205 KB
TB363: Guidelines for Handling and Processing Moisture Sensitive Surface Mount Devices (SMDs) Other PDF 293 KB