Development of new series of CMOS LDO regulators by ROHM Semiconductor
For what that has been designed to address needs for a low power and limited space in mobile application, today ROHM Semiconductor has announced a new series of CMOS LDO regulators which feature ROHM’s own proprietary automatic power saving (APS) function capable of switching performance characteristics dynamically based on operating condition of the target device. The BHxxPB1 comes with the small packaging, minimal external components through integrated inrush current protection plus a simple process with very low average power consumption as well as an integrated output discharge function that eliminates external blocking diodes. The HVSOF5 package that has been used in this new PB1 series requires 70% less mounting area than the standard SOT23-5 package. The output voltage for BHxxPB1 is regulated at ±1% over step load changes during the high-speed operation with operating current of 20µA. During the power saving mode the operating current is reduced to 2µA making them ideal for mobile applications such as mobile phones where by lowering average current consumption would come handy in extending their battery life. The PB1 series come in nine different models with different fixed output voltages ranging from 1.2V to 3.3V. The new PB1 series come with built-in shutdown function, 8kV ESD protection as well as fold back over-current and thermal protection. The product is ready for sampling.
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