FEATURES
DESCRIPTION
n Output Current: 1.1A n Dropout Voltage: 310mV n Low Noise: 40µVRMS (10Hz to 100kHz) n 500µA Quiescent Current (Adjustable Version) n Wide Input Voltage Range: 1.8V to 20V n No Protection Diodes Needed n Controlled Quiescent Current in Dropout n Adjustable Output from 1.20V to 19.5V n Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V n < 1µA Quiescent Current in Shutdown n Stable with 10µF Output Capacitor n Stable with Ceramic or Tantalum Capacitors n Reverse-Battery Protection n No Reverse Current n Current Limit with Foldback Protection n Thermal Limiting n 5-Lead TO-220, DD-Pak, Thermally Enhanced 8-Lead MSOP and 8-Lead 3mm × 3mm DFN Packages APPLICATIONS
n Logic Power Supplies n Post Regulator for Switching Supplies n Low Noise Instrumentation Operating quiescent current is 500µA for the adjustable version, reducing to <1µA in shutdown. Quiescent current is well controlled; it does not rise in dropout as with many other regulators. The LT1965 regulators have very low output noise which makes them ideal for sensitive RF and DSP supply applications.
Linear Technology
