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MAX16929 - Automotive TFT-LCD Power Supply

General Description

The MAX16929 is a highly integrated power supply for automotive TFT-LCD applications.

The device integrates one buck converter, one boost converter, one 1.8V/3.3V regulator controller, and two gate voltage regulators.

Key Features

  • S Operating Voltage Range of 4V to 28V (Buck) or 3V to 5.5V (Boost) S Independent 28V Input Buck Converter Powers TFT Bias Supply Circuitry and External Circuitry S High-Power (Up to 6W) Boost Output Providing Up to 18V S 1.8V or 3.3V Regulator Provides 500mA with External npn Transistor S One Positive-Gate Voltage Regulator Capable of Delivering 20mA at 28V S One Negative-Gate Voltage Regulator S High-Frequency Operation.
  • 2.1MHz (Buck Converter).
  • 2.2MHz (Boost Converter) S Flexible St.

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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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19-5857; Rev 2; 1/12 EVALUATION KIT AVAILABLE MAX16929 Automotive TFT-LCD Power Supply with Boost Converter and Gate Voltage Regulators General Description The MAX16929 is a highly integrated power supply for automotive TFT-LCD applications. The device integrates one buck converter, one boost converter, one 1.8V/3.3V regulator controller, and two gate voltage regulators. The device comes in several versions to satisfy common automotive power-supply requirements (see the Ordering Information/Selector Guide table). Designed to operate from a single 4V to 28V supply or 5.5V to 28V supply, the device is ideal for automotive TFT-LCD applications. Both the buck and boost converters use spread-spectrum modulation to reduce peak interference and to optimize EMI performance.