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TECHNICAL NOTE
High-performance Regulator IC Series for PCs
Ultra Low Dropout Linear Regulators for PC Chipsets
BD3508EKN
● Description The BD3508EKN ultra low-dropout linear chipset regulator operates from a very low input supply, and offers ideal performance in low input voltage to low output voltage applications. It incorporates a built-in N-MOSFET power transistor to minimize the input-to-output voltage differential to the ON resistance (RON=65mΩ) level. By lowering the dropout voltage in this way, the regulator realizes high current output (Iomax=3.0A) with reduced conversion loss, and thereby obviates the switching regulator and its power transistor, choke coil, and rectifier diode. Thus, the BD3508EKN is designed to enable significant package profile downsizing and cost reduction.