DESCRIPTION

The LT ®1963A series are low dropout regulators optimized for fast transient response. The devices are capable of supplying 1.5A of output current with a dropout voltage of 340mV. Operating quiescent current is 1mA, dropping to

FEATURES

■ Optimized for Fast Transient Response

■ Output Current: 1.5A

■ Dropout Voltage: 340mV

■ Low Noise: 40µVRMS (10Hz to 100kHz)

■ 1mA Quiescent Current

■ No Protection Diodes Needed

■ Controlled Quiescent Current in Dropout

■ Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V

■ Adjustable Output from 1.21V to 20V

■ <1µA Quiescent Current in Shutdown

■ Stable with 10µF Output Capacitor*

■ Stable with Ceramic Capacitors*

■ Reverse Battery Protection

■ No Reverse Current

■ Thermal Limiting

■ 5-Lead TO-220, DD, 3-Lead SOT-223 and 8-Lead SO Packages

APPLICATIONS

■ 3.3V to 2.5V Logic Power Supplies

■ Post Regulator for Switching Supplies