This article introduces a variant of a quadratic boost converter (QBC) with low rear-end capacitor stress by preserving its inherent abilities of less ripple continuous input current, utilization of single power switch, and quadratic voltage gain. The proposed converter utilizes two inductor and capacitor ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$LC$ </tex-math></inline-formula> ) filters with three diodes and one active switch for the quadratic conversion ratio. With the advantage of reduced rear-end voltage stress, the proposed converter can be a competent candidate in high-voltage and high-gain renewable applications. Furthermore, the operating principle and the steady-state analysis of the proposed converter in the continuous conduction mode (CCM) are discussed. In addition to the CCM analysis, a detailed discontinuous conduction mode (DCM) analysis due to the inductors <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$L_{a}$ </tex-math></inline-formula> and <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$L_{b}$ </tex-math></inline-formula> is presented. Furthermore, a comparative analysis of the proposed converter variant along with the QBC and its other variants is discussed. The discussion includes the key aspects, such as source ripple current analysis and rear-end capacitor voltage stress of QBC. Furthermore, a 200 W laboratory scaled prototype of the proposed converter is fabricated and tested to validate the theoretical and simulation analyses in CCM.