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AAT2820 - Triple-Output Charge Pump Regulator

General Description

The AAT2820 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family.

It is a triple output charge pump targeted for active matrix thin-film transistor (TFT), liquid crystal displays (LCDs), and CCD camera bias for systems operating with lithium-ion/polymer batteries.

Key Features

  • ChargePump™.
  • VIN Range: 2.7V to 5.5V 5V Regulated Output Voltage Two Adjustable Regulated Output Voltages: VPOS and VNEG.
  • Positive Charge Pump Up to +25V.
  • Negative Charge Pump Down to -25V.
  • Optional Power-Up Sequence with AAT2820-1 Internal Power MOSFETs.

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Datasheet Details

Part number AAT2820
Manufacturer AAT
File Size 462.58 KB
Description Triple-Output Charge Pump Regulator
Datasheet download datasheet AAT2820 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Triple-Output Charge Pump Regulator General Description The AAT2820 is a member of AnalogicTech's Total Power Management IC™ (TPMIC™) product family. It is a triple output charge pump targeted for active matrix thin-film transistor (TFT), liquid crystal displays (LCDs), and CCD camera bias for systems operating with lithium-ion/polymer batteries. The device generates three regulated output voltages for turn-on gate drive bias (VPOS), turn-off gate voltage bias (VNEG), and logic voltage. The VPOS and VNEG output voltages are independently regulated. Both outputs use external diode and capacitor multiplier stages (as many stages as required) to regulate output voltages up to +25V and -25V. An additional regulated output voltage is provided for biasing the display module.