40V, Low Quiescent Current, 150mA Linear Regulator

The ISL80138 is a high voltage, adjustable VOUT low quiescent current linear regulator ideally suited for “always-on” and “keep alive” applications. The ISL80138 operates from an input voltage of +6V to +40V under normal operating conditions and consumes only 18µA of quiescent current at no load.

The ISL80138 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 ISL80138 is rated over the -40°C to +125°C temperature range and is available in a 14 lead HTSSOP with an exposed pad package.

Features

• Wide VIN Range of 6V to 40V

• Adjustable Output Voltage from 2.5V to 12V

• Guaranteed 150mA Output Current

• Ultra Low 18µA Typical Quiescent Current

• Low 2µA of Typical Shutdown Current

• ±1 Accurate Voltage Reference

• Low Dropout Voltage of 295mV at 150mA

• 40V Tolerant Logic Level (TTL/CMOS) Enable Input

• Stable Operation with 10µF Output Capacitor

• 5kV ESD HBM Rated

• Thermal Shutdown and Current Limit Protection

• Thermally Enhanced 14 Ld Exposed Pad HTSSOP Package

Applications

• Industrial

• Telecommunications