300 mA Adjustable Dual CMOS Low Voltage LDO Linear Regulator

Manufacturer's part number :


Manufacturer Skyworks


Description :

The AAT3244 is a dual, low input voltage, low dropout (LDO) linear regulator with two Power OK (POK) outputs. Two integrated regulators provide high power outputs of 300mA from an input voltage range of 1.8V to 5.5V. Two POK pins provide open drain signals when their respective regulator is within regulation. The AAT3244 has independent voltage inputs and enable pins for increased design flexibility. The device features a very low quiescent current (typically 85µA) and low dropout voltages (200mV at full load), making it ideal for portable applications where battery life is critical. The AAT3244 is available in a space-saving, Pb-free 12-pin TSOPJW package and is capable of operation over the -40°C to +85°C temperature range.

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    • Low Input Voltage
    • 1.62V to 5.5V
    • Ultra-Low Adjustable Output Voltage
    • 3.6V to 0.6V
    • High Output Current
    • 300mA per LDO
    • Low Dropout Voltage
    • Typ 200mV @ 300mA
    • Low 85µA Quiescent Current (Both LDOs On)
    • High Output Accuracy: ±1.5%
    • Independent Input Supply and Enable Pins
    • Over-Temperature Protection
    • 12-Pin TSOPJW Package
    • -40°C to +85°C Temperature Range

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Max Input Voltage (V) 5.5  

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Output Voltage (V) 0.6 to 3.6  
Typ. Active Current (µA) 85 (Quiescent)  
Typ. Dropout Voltage @ Max. lout (mV) 200  
Typ. Output Voltage Accuracy (%) ± 1.5  
Output Current (mA) 300  
Operating Temperature (°C) -40 to +85  
Package TSOPJW-12