MAX17113ETL+

Overview

The MAX17113ETL+ is a fully integrated power management IC designed for LCD TV and monitor panels. It operates from an 8V to 16.5V input supply, optimized for 12V systems. The device integrates a boost regulator producing up to 20V output with efficiency exceeding 85%, a buck regulator with adjustable 1.5V to 5V output, and charge pumps for TFT gate drivers. It features selectable switching frequencies of 450kHz or 600kHz and includes an internal pFET for AVDD sequencing. Packaged in a 40-pin 5mm x 5mm TQFN, it supports operation from -40°C to +85°C.

Feature Summary

• Integrates boost, buck, and charge pump regulators within a single compact package
• Includes internal p-channel MOSFET for AVDD sequencing without external components
• Features selectable switching frequencies for design flexibility
• Optimized for direct connection to 12V input supplies

Applications

• LCD TV panel power supplies
• LCD monitor panel power supplies
• TFT source driver power circuits
• Gate driver power circuits
• Panel logic circuit power supplies

Procurement Notes

Verify the specific suffix 'ETL+' against the manufacturer's current product status, as some listings indicate this part may be scheduled for obsolescence. Confirm the exact pinout and thermal pad requirements for the 40-pin TQFN (5x5mm) package during PCB layout. Ensure input voltage ranges align with system specifications before finalizing procurement decisions.

Selection Notes

Select this component when a compact solution is required for driving large LCD panels directly from 12V sources. It is suitable for designs needing integrated high-voltage generation for source drivers and precise low-voltage regulation for logic. Consider the 450kHz/600kHz frequency options based on inductor size constraints and EMI requirements.

Part Context

This part belongs to Maxim Integrated's portfolio of power management solutions for display applications. It utilizes proprietary high-voltage BiCMOS technology to achieve high integration density. The device consolidates multiple power stages typically requiring discrete components into a single chip, reducing overall solution size and cost for consumer electronics manufacturers.

Replacement Considerations

Check Analog Devices' official documentation for current substitute recommendations, as the MAX17113ETL+ has been noted as scheduled for obsolescence in some distributor databases. Verify functional compatibility if replacing with newer PMICs in the same display power family.

FAQ

What is the maximum output voltage of the integrated boost regulator?

The boost regulator can produce an output voltage of up to 20V.

Does the device require an external pFET for AVDD sequencing?

No, the MAX17113ETL+ includes an internal pFET for AVDD sequencing, eliminating the need for an external component.

What are the available switching frequency options?

The device offers selectable switching frequencies of 450kHz and 600kHz.