RT9073A-30GQZ

芯片, 稳压器, LDO, 固定, 3V, 0.25A, QFN-4

The from is a 1µA IQ, 250mA low-dropout linear regulator with enable function in 4 pin QFN package. It provides up to 250mA of output current and offers low power operation in miniaturized packaging. The features of low quiescent current as low as 1µA and almost zero disable current is ideal for powering the battery equipment to a longer service life. The RT9073A is stable with the ceramic output capacitor over its wide input range from 1.2V to 5.5V and the entire range of output load current 0mA to 250mA. The RT9073A builds in a P-MOSFET output transistor which provides a low switch-on resistance for low dropout voltage applications. The RT9073A delivers the output power when it is set to enable state and current limit function to prevent the device from damages during over-load or shorted-circuit condition. It is used in portable, battery powered equipment, ultra low power microcontrollers and notebook computers.

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PSRR = 75dB at 1KHz, ±2% output accuracy

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250mA VIN >= 2.3V output current with EN

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Low 0.1µA disable current & dropout voltage of 0.5V at 250mA when VOUT >= 3V

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Fixed output voltage of 3V

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Stable with ceramic or tantalum capacitor

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Current limit protection, over temperature protection, load regulation of 1% at 1mA < ILOAD < 200mA

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Operating temperature range from -40°C to 85°C

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PSRR of 75db at VIN = 3V, ILOAD = 50mA, COUT = 1µF, VOUT = 2.5V, f = 1KHz

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Output current limit of 500mA at peak output current & fold-back current limit of 350mA

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Thermal shutdown temperature of 150°C at ILOAD = 30mA, VIN >= 1.5V