On some solar irradiation, the DC water pump powered by photovoltaic (PV) cannot run because the current and voltage not enough to support the DC water pump for running it. But with this Linear Current Booster (LCB) circuit, current can be increase until the DC water pump start to running normally. This paper presents the circuit design practicality and to create a Linear Current Booster (LCB) that it is powered by photovoltaic module. It also to create the linear current booster, so that produce stable current and be used to operate the DC water pump.