LT1965EMS8E Datasheet

PMIC - Voltage Regulators - Linear (LDO)


The LT1965EMS8E series are low noise, low dropout linear regulators. The devices supply 1.1A of output current with a 310mV typical dropout voltage. Operating quiescent current is 500&mu;A for the adjustable version, reducing to <1&mu;A in shutdown. Quiescent current is well controlled; it does not rise in dropout as with many other regulators. The LT1965EMS8E regulators have very low output noise which makes them ideal for sensitive RF and DSP supply applications.Output voltage ranges from 1.20V to 19.5V. The LT1965EMS8E regulators are stable with output capacitors as low as 10&mu;F. Internal protection circuitry includes reverse battery protection, current limiting with foldback, thermal limiting and reverse current protection. The LT1965 series are available in xed output voltages of 1.5V, 1.8V, 2.5V, 3.3V, and as an adjustable device with a 1.20V reference voltage. The package offerings include the 5-lead TO-220, 5-lead DD-PAK as well as the thermally enhanced 8-lead MSOP and low-pro le (0.75mm) 8-lead 3mm &times; 3mm DFN. LT1965EMS8E Features &bull; Output Current: 1.1A&bull; Dropout Voltage: 310mV&bull; Low Noise: 40&mu;VRMS (10Hz to 100kHz)&bull; 500&mu;A Quiescent Current (Adjustable Version)&bull; Wide Input Voltage Range: 1.8V to 20V&bull; No Protection Diodes Needed&bull; Controlled Quiescent Current in Dropout&bull; Adjustable Output from 1.20V to 19.5V&bull; Fixed Output Voltages: 1.5V, 1.8V, 2.5V, 3.3V&bull; < 1&mu;A Quiescent Current in Shutdown&bull; Stable with 10&mu;F Output Capacitor&bull; Stable with Ceramic, Tantalum or Aluminum Electrolytic Capacitors&bull; Reverse Battery Protection&bull; No Reverse Current&bull; Current Limit with Foldback Protection&bull; Thermal Limiting&bull; 5-Lead TO-220, DD-PAK, Thermally Enhanced 8-Lead MSOP and 8-Lead 3mm &times; 3mm DFN Packages LT1965EMS8E Applications &bull; Logic Power Supplies&bull; Post Regulator for Switching Supplies&bull; Low Noise Instrumentation


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