• Input Voltage Range: 2V to 6V 
• Adjustable Output Voltage: 0.55V to 5.5V
• Low Dropout Voltage: 110mV (Typ.) at 500mA (3.3V VOUT)
• Power Supply Rejection Ratio (PSRR): 55dB @ 1kHz
• Output Accuracy: 

            o ±0.85% at 25°C

            o ±1% from -40°C to 125°C

• Stable with a Minimum of 2.2μF or Larger Ceramic Output Capacitor
• Low Current Consumption: Typical 25μA Quiescent and 0.1μA in Shutdown
• Over Current Limit and Short CircuitProtection
• Over Temperature Protection with Auto Recovery
• Moisture Sensitivity Level (MSL): 1
• Compact DFN2×2-6 Package 
• Automotive AEC-Q100 Grade 1 Qualified

The SA21308B is a 500mA current linear regulator featuring ultra-low ground current and low dropout voltage.

The device offers an adjustable output voltage with ±1% reference accuracy over temperature. It also includes comprehensive protection features including over current limiting, short circuit protection, and over-temperature operation.

The SA21308B is available in a compact DFN2×2-6 package.