The presence of right-half-plane (RHP) zero and sampling delay in a digital current-mode controlled (DCMC) boost converter restricts the achievable closed-loop bandwidth (BW) to ${\omega _c} = {\omega _{\rm{rhp}}}/3$, making it impractical for high BW and efficient envelope tracking applications. State-feedback-based mixed-signal hysteresis current control (SFMSHCC) enhances the converter's dynamic performance and damping at higher BW without exhibiting any overshoot/undershoot. The resistive characteristics of fixed-gain power amplifiers offer the potential to further improve performance by incorporating reference feedforward. Steady-state frequency regulation is realized through real-time band adaptation. The performance improvements, supported by analytical predictions, are validated using simulation and experimental results.