LT3014IS5

20mA, 3V to 80V Low Dropout Micropower Linear Regulator

DESCRIPTION

The LT®3014 is a high voltage, micropower low dropout linear regulator. The device is capable of supplying 20mA of output current with a dropout voltage of 350mV. Designed for use in battery-powered or high voltage systems, the low quiescent current 7μA operating and 1μA in shutdown makes the LT3014 an ideal choice. Quiescent current is also well controlled in dropout.

Other features of the LT3014 include the ability to operate with very small output capacitors. The regulators are stable with only 0.47μF on the output while most older devices require between 10μF and 100μF for stability. Small ceramic capacitors can be used without the necessary addition of ESR as is common with other regulators. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting and reverse current protection.

FEATURES

■ Wide Input Voltage Range: 3V to 80V

■ Low Quiescent Current: 7µA

■ Low Dropout Voltage: 350mV

■ Output Current: 20mA

■ LT3014HV Survives 100V Transients 2ms

■ No Protection Diodes Needed

■ Adjustable Output from 1.22V to 60V

■ 1µA Quiescent Current in Shutdown

■ Stable with 0.47µF Output Capacitor

■ Stable with Aluminum, Tantalum or Ceramic Capacitors

■ Reverse-Battery Protection

■ No Reverse Current Flow from Output

■ Thermal Limiting

■ Available in 5-Lead ThinSOTTM and 8-Lead DFN Packages

APPLICATIONS

■ Low Current High Voltage Regulators

■ Regulator for Battery-Powered Systems

■ Telecom Applications

■ Automotive Applications