MA3001 MPOWER | Alldatasheet
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Technical content
300mA Ultra-Low Quiescent Current LDO GENERAL DESCRIPTION The MA3001 is an Ultra-Low quiescent current, high accuracy, low noise, high PSRR, low dropout voltage regulator. It also includes fast discharge function, EN pin enable control. The current limit fold-back circuit operates as a short circuit protection function and can limit the output current. The MA3001 consumes less than 1µA in shutdown mode, internal soft-start time is about 200µs. FEATURES - 2.0V to 7.0V Operating Input Voltage Range - Ultra-Low Quiescent Current: 1µ A - Output Voltage: 1.2V/1.8V/3.3V - Output Voltage Accuracy: ±1.5% - Maximum Output Current: 300mA - Dropout Voltage: 210mV@200mA/3.3V - High PSRR: 70dB@1KHz - Stable with 1µ F Output Capacitor - Over Current Protection Function - Output Discharge Function - Available in SOT23-5L Package - Portable Instruments - Reference Voltage Source - Battery-Powered Devices
BLOCK DIAGRAM Error Amplifier Shutdown and Control Logic -Vref Current Limit RSEN PMOS VIN VOUT GND EN PIN ASSIGNMENT The package of MA3001 is SOT23-5L; the pin assignment is given by: Marking Side 1 2 3 EN VOUT VIN GND NC Name Description VIN Power Input Pin. GND Ground Pin. EN Chip Enable Pin. Do not leave this pin floating. NC Not Connected. VOUT Output Pin. ORDER / MARKING INFORMATION Order Information Top Marking Package Type MA3001 PackingX X B: SOT23-5L Blank: Bag A : Taping XX Output Voltage 12: 1.2V 18: 1.8V 33: 3.3V ZZ V1XXX Lot No. VOUT: 12=1.2V 18=1.8V 33=3.3V Part Code