AN254低/下跌汽车电子电压调节器

AN254低/下跌汽车电子电压调节器

APPLICATION NOTE

LOW DROP VOLTAGE REGULATORS
FOR AUTOMOTIVE ELECTRONICS
By S. CISCATO
Linear voltage regulators with an input-output voltage drop of less than 2V are used to ensure continuity of
the stabilized output in applications where a battery supply is used. This note describes the characteristics
and operation of these devices.
Low drop linear voltage regulators are low voltage Figure 1 : Cold Starting Supply Voltage Drop.
(5 to 12V) regulators which are able to provide ef-
fective stabilization of the output vol