MAX17126AETM+

Overview

The MAX17126AETM+ is a multi-output power supply integrated circuit designed for LCD TV applications. It integrates a VCOM amplifier and a high-voltage gamma reference. The device operates from a 5V to 26V input supply. It provides regulated outputs for panel biasing, including positive and negative voltages. The component is housed in a 48-pin TQFN package. It supports PWM switching frequencies adjustable between 250kHz and 1MHz.

Feature Summary

• Integrates a VCOM amplifier for precise display voltage control
• Includes a high-voltage gamma reference for accurate grayscale generation
• Supports wide input voltage range suitable for various panel requirements
• Features adjustable PWM switching frequency for efficiency optimization

Applications

• LCD TV panel power supplies
• Display driver board bias circuits
• Gamma reference generation for liquid crystal displays
• VCOM drive circuits for TFT-LCD panels

Procurement Notes

Verify the specific suffix 'A' against the required datasheet revision, as it denotes a particular manufacturing lot or minor variant within the MAX17126 family. Confirm the '+ ' designation indicates lead-free compliance per RoHS standards. Ensure the 48-pin TQFN footprint matches the PCB layout design. Cross-reference the part number with official Analog Devices documentation to confirm availability of the specific batch code and date code required for production.

Selection Notes

Select this component when designing power systems for LCD TVs requiring integrated gamma and VCOM generation. It simplifies bill of materials by combining multiple regulators into one IC. Consider the thermal performance of the TQFN package under full load conditions. Verify that the input voltage range covers the system's operational limits. Evaluate the need for external components to set the switching frequency if operating outside the default configuration.

Part Context

This part belongs to the Maxim Integrated MAX1712x series of multi-output power supplies. These devices are specifically engineered for flat-panel display applications. The series typically includes variants like the MAX17126 and MAX17127. They share common architectural features such as integrated boost converters and linear regulators tailored for display panel needs. The MAX17126AETM+ represents a specific pin-compatible or functionally identical variant within this product line.

Replacement Considerations

Check for direct substitutes like the MAX17126BETM+ if available in the same package. Verify functional compatibility regarding output voltages and current capabilities. Ensure the replacement maintains the same gamma reference accuracy and VCOM amplifier specifications. Confirm pinout compatibility to avoid PCB redesign.