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The The AMS1086 series of adjustable and fixed voltage regulators are designed to provide 1.5A output current and to operate down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.5V at maximum output current, decreasing at lower load currents.
On-chip trimming adjusts the reference voltage to 1%. Current limit is also trimmed, minimizing the stress under overload conditions on both the regulator and power source circuitry.
The AMS1086 devices are pin compatible with older three-terminal regulators and are offered in 3 lead TO-220 package and 3 lead TO-263 (Plastic DD).
AMS1086 Maximum Ratings
Power Dissipation Internally limited Input Voltage 15V Operating Junction Temperature Range Control Section 0°C to 125°C Power Transistor 0°C to 150°C Storage temperature - 65°C to +150°C Soldering information Lead Temperature (10 sec) 300°C Thermal Resistance TO-220 package JA= 50°C/W TO-263 package JA= 30°C/W * * With package soldering to 0.5in2 copper area over backside ground plane or internal power plane JA can vary from 20°C/W to >40°C/W depending on mounting technique.
AMS1086 Features
· Three Terminal Adjustable or Fixed Voltages 1.5V, 2.5V, 2.85V, 3.0V, 3.3V, 3.5V and 5.0V · Output Current of 1.5A · Operates Down to 1V Dropout · Line Regulation: 0.015% · Load Regulation: 0.1% · TO-220 and TO-263 packages available
AMS1086 Typical Application
· High Efficiency Linear Regulators · Post Regulators for Switching Supplies · Microprocessor Supply · Battery Chargers · Constant Current Regulators · Notebook/Personal Computer Supplies · Portable Instrumentation