Analog Devices Inc. LT1965 Low Dropout Linear Regulators

Analog Devices Inc. LT1965 Low Dropout Linear Regulators supply 1.1A of output current with a 310mV typical dropout voltage. The devices feature an operating quiescent current of 500µA for the adjustable version, reducing to <1µA in shutdown. Quiescent current is well controlled and doesn't rise in dropout like other regulators. The LT1965 regulators very low output noise makes them ideal for sensitive RF and DSP supply applications.

Features

Output Current: 1.1A
Dropout Voltage: 310mV
Low Noise: 40µVRMS (10Hz to 100kHz)
500µA Quiescent Current (Adjustable Version)
Wide Input Voltage Range: 1.8V to 20V
No Protection Diodes Needed
Controlled Quiescent Current in Dropout
Adjustable Output from 1.20V to 19.5V
Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V

< 1µA Quiescent Current in Shutdown
Stable with 10µF Output Capacitor
Stable with Ceramic or Tantalum Capacitors
Reverse-Battery Protection
No Reverse Current
Current Limit with Foldback Protection
Thermal Limiting
5-Lead TO-220, DD-Pak, Thermally Enhanced 8-Lead MSOP and 8-Lead 3mm × 3mm DFN Packages