STMicroelectronics STHVDAC-253MTGF3

Description
The STHVDAC-253MTG is a high voltage BST capacitor controller designed to control and meet the wide tuning bias voltage requirement of BST tunable capacitors. It provides 3 independent high voltage outputs, enabling the control of 3 different capacitors. The controller is fully controlled through an RFFE serial interface.
BST capacitors are tunable capacitors intended for use in mobile phone applications, specifically for RF tunable applications. These tunable capacitors are controlled through a bias voltage ranging from 0 to 24 V. The implementation of BST tunable capacitors in mobile phones enables significant improvement in radiated performance, making the performance almost insensitive to external environment.

Features
Lead-free, Flip Chip (16 bumps)
Dedicated controller to bias BST tunable capacitors
Operation compliant with cellular systems requirements
Turbo and glide modes for optimal system performance
Integrated boost converter with 3 programmable outputs (from 0 to 24 V)
Low power consumption
MIPI RFFE serial interface 1.8 V
Available in WLCSP for stand-alone or SiP module integration

Applications
Cellular antenna tunable matching network in multi-band GSM/WCDMA/LTE handsets
Compatible for open loop antenna tuner application