In summary, the LTC3255 is a general purpose high-voltage step-down charge pump IC with 50mA output current capability. It offers the robustness and simplicity of an LDO with its positive transient and reverse input protection, yet attains efficiencies approaching that of a switching regulator, depending on the operating conditions. It is ideal for applications where an inductor is problematic, and there is need for low EMI with an efficiency that is better than an LDO.

