peculiarity
5V, 3V and 3.3V versions
High output voltage accuracy
Guaranteed 100mA output current
Very low quiescent current
Low differential pressure
Very tight load and line adjustment
Very low temperature coefficient
Use as a voltage regulator or reference
A stable minimum capacitor is required
Current and thermal limits
Stable and Low ESR Output Capacitors (10MΩ6Ω)
illustrate
The LP2950 and LP2951 micropower voltage regulators feature very low quiescent current (75μA typical) and very low dropout voltage (less than 40mV typical at light loads and 380mV 100mA). They are ideal for using battery-powered systems. In addition, the quiescent current of the LP2950/LP2951 dropout increases only slightly, extending battery life.
The LP2950-5.0D-PAK package is surface mount and pin compatible with older 5V regulators in the popular 3-pin TO-92 package. The 8-lead LP2951 is available in plastic, ceramic double, line, firm, or metal and can be packed and provide additional system features.
One such feature is an error flag warning that the output voltage is low, often due to falling battery input and output. It can be used for power-on reset. The second feature is a logic-compatible shutdown input that turns the regulator on and off. In addition, some may be a 5V, 3V, or 3.3V output (depending on the version), or one programmed to an external resistor with pin constraints from 1.24V to 29V.
All donations of LP2950/LP2951 minimum error budget are carefully designed. This includes tight initial tolerances (0.5% typical). , very good load and profile" (0.05% typical. ) and a very low output voltage temperature coefficient, making the section a low-power voltage reference.