Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 General Description Features The AZ1085 is a series of low dropout positive voltage Low Dropout Voltage: Typical 1.3V at 3A regulators with a maximum dropout of 1.5V at 3A of Current Limiting and Thermal Protection load current. Output Current: 3A Current Limit: 4.5A The series features on-chip thermal shutdown. It also o Operating Junction Temperature: 0 to 125 C includes a bandgap reference and a current limiting cir- Line Regulation: 0.015% (Typical) cuit. Load Regulation: 0.1% (Typical) The AZ1085 is available in 1.5V, 1.8V, 2.5V, 3.3V, 5.0V and adjustable versions. The fixed versions inte- Applications grate the adjust resistors. The adjustable version can set the output voltage with two external resistors. High Efficiency Linear Regulators Battery Charger The AZ1085 series is available in standard packages of Post Regulation for Switching Supplies TO-263-2, TO-263-3, TO-220-3, TO-252-2 (1), TO- Microprocessor Supply 252-2 (2), TO-252-2 (3) and TO-252-2 (4). Mother Board Power Supplies DVD-Video Player Telecom Equipment Set Top boxes and Web Boxes Modules Supply TO-263-3 TO-263-2 TO-220-3 TO-252-2 (1) TO-252-2 (2) TO-252-2 (3) TO-252-2 (4) Figure 1. Package Types of AZ1085 Dec. 2012 Rev. 2. 1 BCD Semiconductor Manufacturing Limited 1 Data Sheet 3A LOW DROPOUT LINEAR REGULATOR AZ1085 Pin Configuration S2 Package S Package (TO-263-2) (TO-263-3) 3 INPUT 3 INPUT 2 OUTPUT 2 OUTPUT(TAB) 1 ADJ/GND 1 ADJ/GND D Package (TO-252-2 (1)) (TO-252-2 (2)) 3 INPUT 3 IN P UT 2 OUTPUT 2 OU TP U T ADJ/GND 1 ADJ/GND 1 (TO-252-2 (3)) (TO-252-2 (4)) 3 INPUT 3 INPUT 2 2 OUTP UT OUTPUT 1 1 ADJ/GND ADJ/GND T Package (TO-220-3) 3 INPUT 2 OUTPUT 1 ADJ/GND Figure 2. Pin Configuration of AZ1085 (Top View) Dec. 2012 Rev. 2. 1 BCD Semiconductor Manufacturing Limited 2