250 mA NanoPower LDO Linear Regulator with Power OK

Manufacturer's part number :


Manufacturer Skyworks


Description :

The AAT3223 PowerLinear NanoPower low dropout (LDO) linear regulator is ideal for portable applications where extended battery life is critical. This device features extremely low quiescent current, typically 1.1μA. Dropout voltage is also very low, typically 190mV at 100mA. The AAT3223 has an enable pin which, when pulled low, will put the LDO regulator into shutdown mode, removing power from its load and offering extended power conservation capabilities for portable battery-powered applications. The AAT3223 also has a Power-OK (POK) feature which monitors the LDO output voltage and will alert the system if the output falls out of regulation. The AAT3223 has output short-circuit and over-current protection. In addition, the device has an over-temperature protection circuit, which will shut down the LDO regulator during extended over-current events. The AAT3223 is available in a Pb-free, space-saving 6-pin SOT23 package and is rated over the -40°C to +85°C temperature range. The AAT3223 is similar to the AAT3221 with the exception that it offers the additional Power-OK function through the POK pin.

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    • 1.1µA Quiescent Current
    • 250mA Output Current
    • Low Dropout: 190mV (typical)
    • High Accuracy: ±2%
    • Current Limit Protection
    • Over-Temperature Protection
    • Extremely Low Power Shutdown Mode
    • Low Temperature Coefficient
    • Stable Operation With Virtually Any Output Capacitor Type
    • Power-OK Signal Output
    • Active High Enable Pin
    • 4kV ESD
    • Factory-Programmed Output Voltages
    • 6-pin SOT23 Package

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Features Similar products
Max Input Voltage (V) 5.5  

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Output Voltage (V) 2.8  
Typ. Active Current (µA) 1.1 (Quiescent)  
Typ. Dropout Voltage @ Max. lout (mV) 190  
Typ. Output Voltage Accuracy (%) ± 2  
Output Current (mA) 250  
Operating Temperature (°C) -40 to +85  
Package SOT-23-6