LP2951A is an improved version of the LP2951 and features tighter tolerance on the output voltage and reference voltage specifications. Both the LP2951 and LP2951A feature 150mA output current capability. The LP2951 series of low power voltage regulators have low quiescent current and low dropout voltage. The quiescent current increases minimally during dropout conditions thereby extending battery life. Available in the eight lead SOIC package, the LP2951 series includes features such as shutdown and low output voltage detect (typically due to low battery conditions). This function may also be used as a power on reset function when triggered by CMOS or TTL inputs. The circuit can be used as a fixed voltage 5 volt regulator or adjusted between 1.24 volts and 29 volts using external resistor pairs.
The Semtech LP2951A is an improved version of the LP2951, designed as a low power voltage regulator with a guaranteed 150mA output current capability. It features low quiescent current and low dropout voltage, making it suitable for battery-powered systems and portable modems. The device is available in an eight-lead SOIC package and includes features such as shutdown and low output voltage detect.
| Output Current | 150mA |
|---|---|
| Output Voltage Range | 1.24V to 29V |
| Dropout Voltage | 450mV @ 150mA |
| Operating Junction Temperature | -40 to 125 °C |
| Package Type | SO-8 |
The LP2951A can be adjusted between 1.24 volts and 29 volts using external resistor pairs.
Yes, the circuit can be used as a fixed voltage 5 volt regulator by using an internal voltage divider.
The absolute maximum supply voltage rating is 30V.