说明The LP2981LP2981A families of fixed-output,
low-out regulators offer exceptional, costeffective performance for both portablenonportable applications. Available in fixed voltages of
2.8 V, 3 V, 3.3 V,5 V, the family has an output
tolerance of 0.75% for the A-grade devices (1.25%
for the standard grade)is capable of delivering
100-mA continuous load current. Standard regulator
features, such as overcurrentovertemperature
protection, are included.
The LP2981LP2981A have features that make
the regulators ideal candidates for a variety of
portable applications:
Low out: A PNP pass element allows a typical
out of 200 mV at 100-mA load current7
mV at 1-mA load.
Low quiescent current: The use of a vertical PNP
process allows for quiescent currents that are
considerably lower than those associated with
traditional lateral PNP regulators.
Shutdown: A shutdown feature is available,
allowing the regulator to consume o