The LP2951ACM is an Adjustable Micropower Voltage Regulator with very low quiescent current (75µA typical) and very low dropout voltage (typical 40mV at light loads and 380mV at 100mA). They are ideally suited for use in battery-powered systems. Furthermore, the quiescent current of the LP2951ACM increases only slightly in dropout, prolonging battery life. Careful design of the LP2951ACM has minimized all contributions to the error budget. This includes a tight initial tolerance (0.5% typical), extremely good load and line regulation (0.05% typical) and a very low output voltage temperature coefficient, making the part useful as a low-power voltage reference. One such feature is an error flag output which warns of a low output voltage, often due to falling batteries on the input. It may be used for a power-on reset. A second feature is the logic-compatible shutdown input which enables the regulator to be switched on and off.
● 5, 3 and 3.3V Output voltage versions are available
● High accuracy output voltage
● Ensured 100mA output current
● Extremely low quiescent current
● Low dropout voltage
● Extremely tight load and line regulation
● Very low temperature coefficient
● Use as regulator or reference
● Needs minimum capacitance for stability
● Current and thermal limiting
● Stable with low-ESR output capacitors (10mR to 6R)
● Error flag warns of output dropout
● Logic-controlled electronic shutdown
●Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
