DATASHEET
ISL78301 FN6705
Rev 2.00
April 7, 2015 40V, Low Quiescent Current, 150mA Linear Regulator for Automotive Applications
The ISL78301 is a high voltage, low quiescent current linear
regulator ideally suited for “always-on” and “keep alive”
automotive applications. The ISL78301 operates from an
input voltage of +6V to +40V under normal operating
conditions and operates down to +3V under a cold crank. It
consumes only 18ВµA of quiescent current at no load on the
adjustable version. Features The ISL78301 is available in a fixed 3.3V, 5V and adjustable
output voltage (2.5V to 12V) options. It features an EN pin that
can be used to put the device into a low-quiescent current
shutdown mode where it draws only 2ВµA of supply current. The
device features over-temperature shutdown and current limit
protection. 40V tolerant logic level (TTL/CMOS) enable input The ISL78301 is AEC-Q100 qualified. It is rated over the -40В°C
to +125В°C automotive temperature range and is available in a
14 Ld HTSSOP with an exposed pad package. Thermal shutdown and current limit protection Applications Optimized for “always-on” automotive applications 18µA typical quiescent current Guaranteed 150mA output current Operates through cold crank down to 3V 2µA of typical shutdown current Low dropout voltage of 295mV at 150mA Fixed +3.3V, +5.0V and adjustable output voltage options Stable operation with 10µF output capacitor -40°C to +125°C operating temperature range Thermally enhanced 14 Ld exposed pad HTSSOP package AEC-Q100 qualified Automotive 5kV ESD HBM rated Industrial Pb-free (RoHS compliant) Telecommunications VIN = 14V
CIN
0.1ВµF R1
EN
(ISL78301) VIN = 14V VOUT = 12V OUT IN COUT
10ВµF OUT IN VOUT = 5V …