ME1117A12B3G

General Description

ME1117 series are highly accurate, low noise, LDO Voltage Regulators that are capable of providing an output current

 that is in excess of 1.0A with a maximum dropout voltage of 1.3V at 1.0A. This series contains six fixed output voltages

 of 1.2 V, 1.5V,1.8 V, 2.5 V, 3.3 V, and 5.0 V that have no minimum load requirement to maintain regulation. Also

 included is an adjustable output version that can be programmed from 1.25 V to 20 V with two external resistors. On 

chip trimming adjusts the reference/output voltage to within ±2.0% accuracy. Internal protection features consist of 

output current limiting, safe operating area compensation, and thermal shutdown. The ME1117 series can operate 

with up to 20 V input.

Features

l Output Current in Excess of 1.0A

l Dropout Voltage：1.07V@ IOUT =100mA

l Operating Voltage Range： 4.8V～20V（ME1117A33）

l Highly Accuracy： ±2％

l Adjustable Output Voltage Option

l Standby Current：3.3mA（TPY.）

l High Ripple Rejection：60dB@1KHz （ME1117A33）

l Line Regulation: 0.1％（TYP.）

l Temperature Stability≤0.5%

l Current Limit（1.3A）

l Thermal Shutdown Protection（160℃）

Typical Application

l Consumer and Industrial Equipment Point of Regulation

l Switching Power Supply Post Regulation

l Hard Drive Controllers

l Battery Chargers

Package

l 3-pin SOT223、TO252-2、SOT89-3