0.7 to 2.7 GHz Triple SPST (3xSPST) Shunt MIPI Switch in a WLCSP Package

The SKY19237-001 is a wafer level chip scale package (WLCSP) triple-shunt, single-pole, single-throw (3xSPST) switch with integrated logic and bias block. Both paths are connected on one side to a single RF ground bump.

The part is designed to sustain a peak voltage of 80 V typical without going to breakdown.

The switching is controlled by an integrated Mobile Industry Processor Interface (MIPI) decoder.

The SKY19237-001 is provided in a compact 11-bump, 1.685 × 1.775 × 0.5 mm WLCSP that meets requirements for board-level assembly. Bump diameters are 262 μm, with a minimum bump pitch of 400 μm.


  • Broadband frequency range: 0.7 to 2.7 GHz
  • Two RF shunts to ground:
    • Low RON: 2Ω
    • Low COFF: 200 fF
  • RF voltage handling in the OFF state: 80 V peak
  • High linearity for carrier aggregation applications
  • Supply voltage: 2.4 to 4.8 V
  • Ultra-small WLCSP (11-bump, 1.685 × 1.775 × 0.5 mm, 262 μm diameter, 400 μm pitch) package (MSL1, 260 °C per JEDEC J-STD-020)
Product Summary SKY19237-001: 0.7 to 2.7 GHz Triple SPST (3xSPST) Shunt MIPI Switch in a WLCSP Package SKY19237_001_203878A_PS.pdf (169 KB)
Application Notes Why Vpeak is the Most Critical Aperture Tuner Parameter Why_Vpeak_is_the_Most_Critical_Aperture_Tuner_Parameter_204666B_AN.pdf (198 KB)
ProductName : SKY19237-001
Description (Absorptive/ Reflective) : 3xSPST
Frequency (GHz) Min. : 0.7
Frequency (GHz) Max. : 2.7
Control Logic : MIPI
Package : WLCSP 11-bump
Package (mm) : 1.6 x 1.6 x 0.5
Product Information:
Description: Antenna Tuning Switches
Description: High Linearity
Description: Low Insertion Loss
Frequency Max.: ≥1 GHz and <2.9 GHz
Frequency Min.: ≥400 MHz
Function: 3xSPST
Package Type: WLCSP
Status: In Production
Status: New
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