Datasheet

ISL78307
40V, Low Quiescent Current, 50mA Linear Regulator for Automotive Applications

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Key Features

Optimized for Always-on Automotive Applications
18µA Typical Quiescent Current
Guaranteed 50mA Output Current
Operates through Cold Crank Down to 3V
40V Tolerant Logic Level (TTL/CMOS) Enable Input
1.8µA of Typical Shutdown Current
Low Dropout Voltage of 120mV at 50mA
Fixed +3.3V, +5.0V and Adjustable Output Voltage Options
Stable Operation with 10µF Output Capacitor
Thermal Shutdown and Current Limit Protection
-40°C to +125°C Operating Temperature Range
Thermally Enhanced 8 Ld Exposed Pad SOIC Package
AEC-Q100 Qualified
6kV ESD HBM Rated
Pb-Free (RoHS Compliant)

Description

The ISL78307 is a high voltage, low quiescent current linear regulator ideally suited for always-on and keep alive automotive applications. The ISL78307 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 18µA of quiescent current at no load on the adjustable version.

The ISL78307 is available in 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 1.8µA of supply current. The device features over-temperature shutdown and current limit protection.

The ISL78307 is both AEC-Q100 qualified and fully TS16949 compliant. It is rated over the -40°C to +125°C automotive temperature range and is available in an 8 Ld EPSOIC with exposed pad package.