The LP2954 is a 5-V micropower LDO with very low quiescent current (90 μA typical at 1-mA load) and very low dropout voltage (typically 60 mV at light loads and 470 mV at 250-mA load current).
●The quiescent current increases only slightly at dropout (120 μA typical), which prolongs battery life.
●The LP2954 with a fixed 5-V output is available in three-pin TO-220 and DDPAK/TO-263 packages. The adjustable LP2954 is provided in an 8-pin, small-outline SOIC package. The adjustable version also provides a resistor network which can be pin strapped to set the output to any voltage from to 1.23 V to 29 V.
●Reverse battery protection is provided for the IN pin.
●The tight line and load regulation (0.04% typical), as well as very low output temperature coefficient make the LP2954 well suited for use as a low-power voltage reference.
●Output accuracy is ensured at both room temperature and over the entire operating temperature range.
●For all available packages, see the orderable addendum at the end of the data sheet.
● 5-V Output within 1.2% Over Temperature
●(A Grade)
● Adjustable 1.23-V to 29-V Output Voltage Available (LP2954IM and LP2954AIM)
● Ensured 250-mA Output Current
● Extremely Low Quiescent Current
● Low Dropout Voltage
● Reverse Battery Protection
● Extremely Tight Line and Load Regulation
● Very Low Temperature Coefficient
● Current and Thermal Limiting
● Pin Compatible with LM2940 and LM340
●(5-V Version Only)
● Adjustable Version Adds ERROR Flag to Warn of Output Drop and a Logic-Controlled Shutdown
