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
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
Output accuracy is ensured at both room temperature and over the entire operating
For all available packages, see the orderable addendum at the
end of the data sheet.
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