Multi-phase DCDC for cellular base stations

Multi-phase DCDC for cellular base stations

The ASIC provides the low-frequency component of a high-efficient envelope tracking system for cellular base stations. It is highly programmable and can be applied both as converter as well as controller in single, dual and quad phase configurations.


  • Multi-phase – low ripple
  • High switching frequency (5MHz) – lower BOM due to small external inductors
  • High bandwidth (500kHz)
  • High Power (150W) / High¬† voltage (60V)
  • Wide output dynamic range
  • Broad output power range
  • Current balancing / Current limitation
  • High speed comparators¬† (20ns max delay in complete feedback path)
  • High flexibility – 2×1 phase, 2×2 phase and 1×4 phase
  • GaN output power stage ready
  • 0.35um 80V BCD

Chip layout

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