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MOSFETs Designed for On-Resistance Ratings at 1.2 V


MOSFETs Designed for On-Resistance Ratings at 1.2 V

Vishay and Digi-Key help designers simplify power management circuitry while extending battery run times in portable electronics


The 1.2-V-rated Vishay Siliconix TrenchFET® devices bring the MOSFET turn-on voltage into alignment with the 1.2-V to 1.3-V operating voltages of digital ICs used in mobile electronics, enabling safer and more reliable designs. As the first power MOSFETs that can be driven directly from 1.2-V buses, the new TrenchFETs provide the additional potential benefit of eliminating the need for an extra conversion stage in battery-operated systems with a core voltage lower than 1.8 V.

In MOSFETs where 1.5 V is the lowest rating, on-resistance tends to increase exponentially at lower, unspecified gate-to-source voltages such as 1.2 V. By contrast, these new 1.2-V TrenchFETs offer guaranteed low n-channel on-resistance as low as 0.041 Ω and p-channel on-resistance as low as 0.095 Ω at a 1.2-V gate drive. On-resistance performance at a 1.5-V gate drive is better than in devices for which 1.5 V is the lowest gate-to-source specification: as low as 0.022 (n-channel) and 0.058 (p-channel).

  • Si8424DB
  • SiA414DJ
  • SiB414DK
  • Si8429DB
  • SiA417DJ
  • SiB417DK
  • Si1499DH

Si8424DB – N-Channel 1.2-V (G-S) MOSFET

Features Applications
  • TrenchFET® Power MOSFET
  • Ultra Small MICRO FOOT® Chipscale Packaging Reduces Footprint Area, Profile (0.62 mm) and On-Resistance Per Footprint Area
RoHS Compliant
  • Low Threshold Load Switch for Portable Devices
    • Low Power Consumption
    • Increased Battery Life
  • Ultra Low Voltage Load Switch
   Datasheet
Si8424DB Micro Foot

Vishay/Siliconix Part Number Digi-Key Part Number Packaging Type
SI8424DB-T1-E1 SI8424DB-T1-E1CT-ND Cut Tape
SI8424DB-T1-E1TR-ND Tape & Reel

SiA414DJ – N-Channel 8-V (D-S) MOSFET

Features Applications
  • Halogen-free
  • Thermally Enhanced PowerPAK® SC-70 Package
    • Small Footprint Area

  • Load Switch for Portable Applications
RoHS Compliant
   Datasheet
SiA414DJ PowerPAK SC-70-6L-Single

Vishay/Siliconix Part Number Digi-Key Part Number Packaging Type
SIA414DJ-T1-GE3 SIA414DJ-T1-GE3CT-ND Cut Tape

SiB414DK – N-Channel 1.2-V (G-S) MOSFET

Features Applications
  • Halogen-free
  • Thermally Enhanced PowerPAK® SC-75 Package
    • Small Footprint Area
    • Low On-Resistance
  • Load Switch, PA Switch and Battery Switch for Portable Devices
  • DC/DC Converter
RoHS Compliant
   Datasheet
SiB414K PowerPAK SC-75-6L-Single

Vishay/Siliconix Part Number Digi-Key Part Number Packaging Type
SIB414DK-T1-GE3 SIB414DK-T1-GE3CT-ND Cut Tape

Si8429DB – P-Channel 1.2-V (G-S) MOSFET

Features Applications
  • Industry First 1.2 V Rated MOSFET
  • Ultra Small MICRO FOOT® Chipscale Packaging Reduces Footprint Area, Profile (0.62 mm) and On-Resistance Per Footprint AreaRoHS Compliant
  • Low Threshold Load Switch for Portable Devices
    • Low Power Consumption
    • Increased Battery Life
  • Ultra Low Voltage Load Switch

   Datasheet
Si8429DB Micro Foot

Vishay/Siliconix Part Number Digi-Key Part Number Packaging Type
SI8429DB-T1-E1 SI8429DB-T1-E1CT-ND Cut Tape
SI8429DB-T1-E1TR-ND Tape & Reel

SiA417DJ – P-Channel 8-V (D-S) MOSFET

Features Applications
  • Halogen-free
  • Thermally Enhanced PowerPAK® SC-70 Package
    • Small Footprint Area
    • Low On-Resistance
  • Load Switch, PA Switch for Portable Devices
  • RoHS Compliant

   Datasheet
SiA417DJ PowerPAK SC-70-6L-Single

Vishay/Siliconix Part Number Digi-Key Part Number Packaging Type
SIA417DJ-T1-GE3 SIA417DJ-T1-GE3CT-ND Cut Tape

SiB417DK – P-Channel 1.2-V (G-S) MOSFET

Features Applications
  • Halogen-free
  • Thermally Enhanced PowerPAK® SC-75 Package
    • Small Footprint Area
    • Low On-Resistance
  • Load Switch, PA Switch for Portable Devices
  • RoHS Compliant

   Datasheet
SiB417DK PowerPAK SC-75-6L-Single

Vishay/Siliconix Part Number Digi-Key Part Number Packaging Type
SIB417DK-T1-GE3 SIB417DK-T1-GE3CT-ND Cut Tape

Si1499DH – P-Channel 1.2-V (G-S) MOSFET

Features Applications
  • Ultra-Low On-Resistance
RoHS Compliant
   Datasheet
  • Load Switch for Portable Devices
    • Guaranteed Operation at VGS = 1.2 V Critical for Optimized Design and Longer Battery Life
Si1499DH Top View

Vishay/Siliconix Part Number Digi-Key Part Number Packaging Type
SI1499DH-T1-E3 SI1499DH-T1-E3CT-ND Cut Tape
SI1499DH-T1-E3TR-ND Tape & Reel