1.5V Micropower CMOS Voltage Regulator

The LP3992 is Micropower CMOS Voltage Regulator with input range of 1.9 to 5.2V and can produce 1.5V output. This regulator suits for application that need an accurate output voltage with power from battery, low quiescent current, low noise and portable. The accurateness  of this regulator is 1.5 ± 0.009V and this device has output current of 30mA. The LP3992 also equipped with thermal and short circuit shutdown protection. When there is a short-circuit or Overheat, this regulator will shutdown. Here is the schematic diagram of the circuit:


The LP3992 is available in an SOT23-5 package and stable with ceramic capacitor as small as 1.0uF. This device can be shutdown using logic signal at shutdown pin.  It’s operate well in temperature range of -40°C to +125°C. [Circuit’s schematic diagram source: National Semiconductor’s Application Note]