Power Management IC for the SkyBlue™ System

The SKY87020-13 is a high-efficiency RF front-end power management IC for APT RF power amplifier (PA) applications in portable battery powered devices. This IC includes a high-efficiency DC-DC voltage converter with a 4.5 V reference supply to provide a user-programmable RF PA APT supply for a 2.5 V to 5.5 V input range.

The SKY87020-13 also provides an additional 4.5 V bias supply for RF PA operation. This bias voltage output can supply load currents up to 3 mA and is available whenever the device is enabled. When the device is disabled, the 4.5 V bias supply is shut down.

The SKY87020-13 is available in a 16-pin, 2.005 mm  2.005 mm Chip Scale Package (CSP).

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Min. VIN (V)2.5
Max. VIN (V)5.5
Min. VOUT (V)2.5
Max. VOUT (V)VccPA
Typ. IQ (μA)TBD
PackageCSP, 16-ball
Package (mm)2.005 x 2.005 x 0.695


  • Input voltage range: 2.5 V to 5.5 V
  • High-efficiency converter:
  • Output voltage range optimized for SkyBlue™ PA operation
  • 4.5 V, 3 mA PA bias supply output
  • Over-temperature and short-circuit protection
  • Small footprint CSP (16-ball, 2.005 mm x 2.005 mm) package (MSL1, 260 °C per JEDEC J-STD-020)

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