Nisshinbo Micro Devices Inc. SOT89-5 RP111H151B-T1-FE

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The RP111H151B-T1-FE is a linear voltage regulator IC from Ricoh, featuring low dropout (LDO) operation for stable output voltage regulation with minimal voltage difference between input and output. It provides high ripple rejection, accurate output voltage, and low quiescent current, making it suitable for power-sensitive applications requiring efficient power management. The device integrates a reference voltage source, error amplifier, output voltage setting network, current limiting circuitry, and thermal shutdown protection. This component is typically supplied in a surface mount package and is intended for use in circuits where a fixed positive voltage needs to be maintained under varying load conditions.