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ADM8839 - Charge Pump Regulator for Color TFT Panels

Description

The ADM8839 is a charge pump regulator used for color thin film transistor (TFT) liquid crystal displays (LCDs).

15 V) from a single 3 V supply.

Features

  • 3 Voltages (+5 V, +15 V,.
  • 15 V) from a Single 3 V Supply Power Efficiency Optimized for Use with TFT in Mobile Phones Low Quiescent Current Low Shutdown Current (.

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Datasheet Details

Part number ADM8839
Manufacturer Analog Devices
File Size 233.61 KB
Description Charge Pump Regulator for Color TFT Panels
Datasheet download datasheet ADM8839 Datasheet

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Full PDF Text Transcription

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Charge Pump Regulator for Color TFT Panels ADM8839 FEATURES 3 Voltages (+5 V, +15 V, –15 V) from a Single 3 V Supply Power Efficiency Optimized for Use with TFT in Mobile Phones Low Quiescent Current Low Shutdown Current (<5 ␮A) Shutdown Function Option to Use External LDO APPLICATIONS Hand-held Instruments TFT LCD Panels Cellular Phones FUNCTIONAL BLOCK DIAGRAM C5, 2.2␮F VCC ADM8839 C1+ VOLTAGE DOUBLER C1– C1, 2.2␮F VOUT LDO_IN OSCILLATOR LDO VOLTAGE REGULATOR C6, 2.2␮F +5VOUT +5VIN C2+ C2– C3+ C3– C3, 0.22␮F +15V C8, 0.22␮F C4, 0.22␮F LDO_ON/OFF CONTROL LOGIC +5V C7, 2.2␮F DOUBLE VOLTAGE TRIPLER TRIPLE TIMING GENERATOR C2, 0.22␮F +15VOUT C4+ SHDN SHUTDOWN CONTROL DISCHARGE VOLTAGE INVERTER C4– –15VOUT GND –15V C9, 0.
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