AAT3190ITP-T1

Overview

The AAT3190ITP-T1 is a charge pump controller designed to generate regulated positive and negative voltage biases for active matrix thin-film transistor (TFT) liquid-crystal displays, charge-coupled device sensors, and organic light emitting diodes. It utilizes two low-power charge pumps to convert input supply voltages ranging from 2.7V to 5.5V into two independent output voltages. The device features an adjustable dual charge pump architecture with a positive supply output up to +25V and a negative supply output down to -25V. It supports up to 30mA output current at a switching frequency of 1.0MHz. The component includes internal power MOSFETs, internally controlled soft start, and fast transient response capabilities.

Feature Summary

• Provides regulated positive and negative voltage biases for display and sensor applications
• Converts input supply voltages into two independent output voltages using low-power charge pumps
• Features internal power MOSFETs and internally controlled soft start for efficient operation

Applications

• CCD Sensor Voltage Bias
• OLEDs
• Passive-Matrix Displays
• Personal Digital Assistants
• TFT Active-Matrix LCDs

Procurement Notes

Verify the exact suffix configuration against official Skyworks documentation, as distributor listings may vary. Confirm end-of-life status and discontinuance notifications prior to procurement. Ensure compatibility with required output voltage ranges and current specifications for the target application design.

Selection Notes

Select this component when dual polarity bias generation is required for TFT LCDs or OLEDs without inductors. Consider the 2.7V to 5.5V input range and the need for adjustable ± outputs up to ±25V. Evaluate the 1.0MHz switching frequency and 30mA current capability against system power constraints.

Part Context

This part belongs to the AAT3190 series of charge pump controllers manufactured by Skyworks Solutions Inc. It is specifically engineered for portable electronic devices requiring compact power solutions for display backplanes and image sensors. The TSOPJW-12 package provides a space-efficient form factor suitable for mobile and handheld applications.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided source material.