MAX667 PDF

The MAX667 low-dropout, positive, linear voltage regulator
supplies up to 250mA of output current. With no
load, it has a typical quiescent current of 20μA. At
200mA of output current, the input/output voltage differential
is typically 150mV. Other features include a lowvoltage
detector to indicate power failure, as well as
early-warning and low-dropout detectors to indicate an
imminent loss of output voltage regulation. A shutdown
control disables the output and puts the circuit into a
low quiescent-current mode.
The MAX667 employs Dual Mode™ operation. One
mode uses internally trimmed feedback resistors to produce
+5V. In the other mode, the output may be varied
from +1.3V to +16V by connecting two external resistors.
The MAX667 is a pin-compatible upgrade to the
MAX666 in most applications where the input voltages
are above +3.5V. Choose the MAX667 when high output
currents and/or low dropout voltages are desired,
as well as for improved performance at higher
temperatures.
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