ADM8839ACP-REEL7

Overview

The ADM8839ACP-REEL7 is a charge pump regulator designed for color TFT LCD panels. It generates negative and positive supply voltages required for display operation. The device operates with an input voltage range of 2.7V to 4.2V. It features a switching frequency of 140kHz maximum. The component is housed in a 20-VFQFN exposed pad CSP package. It supports surface mount installation. The unit weight is approximately 36 mg.

Feature Summary

• Integrated charge pump topology for generating dual polarity supplies
• Optimized for driving color TFT thin film transistor displays
• Compact surface-mount packaging for space-constrained designs

Applications

• Color TFT LCD panel power management
• Thin film transistor display bias generation
• Portable electronic device display circuits

Procurement Notes

Verify the exact package type and pinout configuration against the official Analog Devices datasheet before integration. Confirm that the 20-VFQFN exposed pad footprint matches your PCB layout requirements. Ensure input voltage specifications align with your system's power rails. Check for any specific thermal dissipation needs associated with the CSP package in your application environment.

Selection Notes

Select this component when designing power systems for color TFT LCDs requiring integrated negative and positive voltage generation. Consider the 2.7V to 4.2V input range compatibility with single-cell lithium batteries or 3.3V logic systems. Evaluate the 140kHz switching frequency for electromagnetic interference considerations relative to surrounding circuitry. Verify the 20-pin CSP package availability for your manufacturing process.

Part Context

The ADM8839 belongs to Analog Devices' specialized power management IC family targeting display applications. It integrates charge pump functionality to eliminate external inductors, reducing board space. The device simplifies design for portable electronics by providing necessary display biases from a single low-voltage source. This series supports various TFT LCD configurations commonly found in mobile devices.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.