ISL78301
40V, Low Quiescent Current, 150mA Linear Regulator for Automotive Applications
Key Features
- Optimized for Always-on Automotive Applications
- 18µA Typical Quiescent Current
- Guaranteed 150mA Output Current
- Operates Through Cold Crank Down to 3V
- 40V Tolerant Logic Level (TTL/CMOS) Enable Input
- 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
- Thermal Shutdown and Current Limit Protection
- -40°C to +125°C Operating Temperature Range
- Thermally Enhanced 14 Ld Exposed Pad HTSSOP Package
- AEC-Q100 Qualified
- 5kV ESD HBM Rated
- Pb-Free (RoHS Compliant)
Description
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 18µA of quiescent current at no load on the adjustable version.
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 2µA of supply current. The device features over-temperature shutdown and current limit protection.
The ISL78301 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 a 14 Ld HTSSOP with an exposed pad package.
Applications
- Automotive
- Industrial
- Telecommunications


