LT1085CT Description
The LT1085CTpositive adjustable regulators are designed to give better efficiency than currently available devices at 3A, 5A, and 7.5A. The dropout voltage is thoroughly specified as a function of load current, and all internal circuitry is designed to perform down to 1V input to output differential. Dropout is assured at a maximum of 1.5V at maximum output current, with lower load currents resulting in lower dropout. Trimming on the chip reduces the output voltage by 1%. Under overload conditions, the current limit is also lowered, reducing the stress on the regulator and power source circuitry. Older three-terminal regulators are pin-compatible with the LT1085CT. On these new devices, a 10F output capacitor is required; nevertheless, this is normally included in most regulator designs.
LT1085CT Features
Load Regulation: 0.1%
Line Regulation: 0.015%
Adjustable Versions Available
Operates Down to 1V Dropout
Output Current of 3A, 5A or 7.5A
100% Thermal Limit Functional Test
Three-Terminal 3.3V, 3.6V, 5V and 12V
Guaranteed Dropout Voltage at Multiple Current Levels
LT1085CT Applications
Battery Chargers
Constant Current Regulators
High-Efficiency Linear Regulators
Post Regulators for Switching Supplies
