AMS1117

Features:

· Three Terminal Adjustable or Fixed Voltages* 1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V
· Output Current of 800mA
· Operates Down to 1V Dropout
· Line Regulation: 0.2% Max.
· Load Regulation: 0.4% Max.
· SOT-223 and TO-252 package available




Application

· High Efficiency Linear Regulators
· Post Regulators for Switching Supplies
· 5V to 3.3V Linear Regulator
· Battery Chargers
· Active SCSI Terminators
· Power Management for Notebook
· Battery Powered Instrumentation




Pinout

Specifications

Power Dissipation Internally limited
Input Voltage 15V
Operating Junction Temperature Range
Control Section0°C to 125°C
Power Transistor0°C to 150°C
Storage temperature - 65°C to +150°C
Soldering information
Lead Temperature (10 sec) 300°C
Thermal Resistance
TO-252 package _JA= 80°C/W
SOT-223 package _JA= 90°C/W*
* With package soldering to copper area over backside ground plane or internal power plane _JA can vary from 46°C/W to >90°C/W depending on mounting technique and the size of the copper area.




Description

AMS1117 series of adjustable and fixed voltage regulators are designed to provide 1A output current and to operate down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V at maximum output current, decreasing at lower load currents. On-chip trimming adjusts the reference voltage to 1.5%. Current limit is also trimmed, minimizing the stress under overload conditions on both the regulator and power source circuitry. The AMS1117 devices are pin compatible with other three-terminal SCSI regulators and are offered in the low profile surface mount SOT-223 package, in the 8L SOIC package and in the TO-252 (DPAK) plastic package.