Considering the effect of the controllable current gain on the performance of the charge pump phase locked loop (CPPLL), a practical calculating method of the stability factor and loop bandwidth of the 5 order CPPLL has been presented in this paper. After comparing with the conventional design method of 5 order CPPLL, the cause for the poor stability of the conventional CPPLL in fast frequency hopping has been discussed. The proposed method in this work has decreased effectively the influence of the current variation of the charge pump (CP) on the frequency hopping stability. The simulation results have verified the effectiveness of the design method and the correct of the analysis method. The proposed method provides an important reference and guideline for the design of 5 order CPPLL.