UNISONIC TECHNOLOGIES CO.
, LTD L1923
Preliminary CMOS IC
500mA HIGH PSRR LDO
REGULATORS
DESCRIPTION
4 5 2 3
The UTC L1923 is a low supply current, low dropout linear
regulator.
It is operating at 2.
5V - 5.
5V.
The supply current is as low as 55μA in the no–load condition.
In the shutdown mode, the maximum supply current is less than 1μA.
A built-in over-temperature protection circuit is designed to protect the device from being damaged by thermal overload.
The over-current protection limit is set at 800mA (TYP.
) The UTC L1923 can be operated on the following two modes.
When the SET pin is connected to ground, the output of L1923 is a pre-set value and the external components are not neede...