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Description: The SG2012 low-power, low-dropout, CMOS linear voltage regulators operate from a 2.5V to 5.5V input an...


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SG2012 General Description


The SG2012 low-power, low-dropout, CMOS linear voltage regulators operate from a 2.5V to 5.5V input and deliver up to 400mA. They are perfect choice for low voltage, low power applications. An ultra low ground current (120A at 400mA output) makes them attractive for battery operated power systems. The SG2012 series also offer ultra low dropout voltage (280mV at 400mA output) to prolong battery life in portable electronics.

The output voltage is preset to voltages in the range of 1.5V to 4.5V. Other features include foldback current limit and thermal shut-down protection.

SG2012 comes in 3-pin SOT223 package.

SG2012 Maximum Ratings

IN to GND.....................................................................- 0.3V to +6V
Output Short-Circuit Duration............................................Infinite
OUT to GND...................................................- 0.3V to (VIN + 0.3V)
Operating Temperature Range................. ..........- 40°C to +125°C
Junction Temperature...........................................................+150°C
Storage Temperature.............................................- 65°C to +150°C
Power Dissipation, PD @ TA = 25
SOT223-3...................................................................................0.74W
Package Thermal Resistance
SOT223-3, JA.......................................................................135°C/W
Lead Temperature (soldering, 10s) ....................................+260°C
ESD Susceptibility
HBM..........................................................................................7000V
MM..............................................................................................400V


Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

SG2012 Features

` Ultra-Low Dropout Voltage: 280mV at 400mA output
` Low 80A No-Load Supply Current
` Low 120A Operating Supply Current at 400mA Output
` Thermal-Overload Protection
` Output Current Limit
` Preset Output Voltages (±1.8% Accuracy)
`Output Voltage: Available in Fixed Outputs of 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, and 3.3V

SG2012 Typical Application

`Cellular Telephones
`Digital Cameras
`MP3,MP4
`USB 2.0
`Modems
`PC Cameras
`Hand-Held Instruments
`Electronic Dictionarys
`Portable/Battery-Powered Equipment

SG2012 Connection Diagram

SG2012  Connection Diagram

SG2012 datasheet

SG2012
PDF/DataSheet Download

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