MAX25520

PRODUCTION

Automotive 2-Channel TFT-LCD Power Supply

Best in Class Solution Size and EMI

Data Sheet (Rev. 3) Product Selection Table

Part Models: 7
1ku List Price: Starting From $1.25

Viewing:

Overview

High Integration
- Synchronous Boost Provides Positive Output at up to 10.5V/200mA (+12V for MAX25520ATEC)
- Inverter Output Provides up to -10.5V/-200mA (-12V for MAX25520ATEC)
Low EMI
- 420kHz/2.1MHz Switching Frequency
- Spread Spectrum

UV Diagnostics on All Outputs
Versatile
- Complete Sequencing Flexibility
- Compact TQFN Package
- -40°C to +125°C Operating Temperature Range
AEC-Q100 Grade 1

The MAX25520 is a dual-output power IC that provides symmetrical or asymmetrical positive and negative voltages up to 10.5V and down to -10.5V (±12V for MAX25520ATEC) with an input voltage between 2.65V and 5.5V. It incorporates a fully integrated current-mode boost converter and a current-mode inverter with external rectifier. The device operates at one of two switching frequencies, 420kHz or 2.1MHz. Operation at 2.1MHz permits very compact dual-output power supplies.

The two output voltages can be programmed independently or can be made to track each other. Independent enable pins allow complete flexibility in powering the outputs up and down.

The outputs are protected against overcurrent and under-voltage.

The MAX25520 is available in a compact 3mm x 3mm TQFN package and operates over the -40°C to +125°C automotive temperature range.

Applications

Central Information Displays
Infotainment Displays
Instrument Clusters

Part Models: 7
1ku List Price: Starting From $1.25

Documentation

Data Sheet 1

MAX25520: Automotive 2-Channel TFT-LCD Power Supply Data Sheet (Rev.3) 10/12/2021

Technical Articles 3

Automotive Displays Part 2: Power Techniques of TFT LCD, OLED, and Micro-LED Displays 06/11/2025

TFT-Bias for Automotive Applications 08/20/2021

2-Channel TFT Bias Addresses Automotive LTPS Display Needs 08/24/2021

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX25520ATEA/VY+	16-LFCSP_SS-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25520ATEB/V+	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25520ATEB/V+T	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25520ATEB/VY+	16-LFCSP_SS-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25520ATEB/VY+T	16-LFCSP_SS-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25520ATEC/V+	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25520ATEC/V+T	16-LFCSP-3X3X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 27, 2024 - 2400 ASSEMBLY
		pcn_2400
MAX25520ATEB/V+	PRODUCTION
MAX25520ATEB/V+T	PRODUCTION
MAX25520ATEB/VY+	PRODUCTION
MAX25520ATEB/VY+T	PRODUCTION
MAX25520ATEC/V+	PRODUCTION
MAX25520ATEC/V+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Evaluation Kits

Evaluation Kit for the MAX25520

Buy Now View Details

Features and Benefits

2.65V to 5.5V Input Range (4.5V to 5.5V for MAX25520ATEC)
Default Output Voltages in Tracking Mode
- 6.8V Output at 200mA (Boost Converter)
- -6.8V Output at -200mA (Inverting Regulator)
Optional Adjustable Output Voltages
- Synchronous Boost Provides Positive Output at Up to 10.5V/200mA (+12V/200mA for MAX25520ATEC)
- Inverter Output Provides Up to -10.5V/-200mA (-12V/-200mA for MAX25520ATEC)
Components Fit the 2.1MHz Frequency (To use 420kHz frequency, hardware changes are required)
Spread-Spectrum
UV Diagnostics on All Outputs and Fault Detection
Complete Sequencing Flexibility
-40°C to +125°C Operating Temperature Range

Product Details

The MAX25520 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB used to evaluate the MAX25520 automotive 2-Channel TFT-LCD Power Supply. The output rails, AVDD and NAVDD, can be programmed independently or programmed to track each other by using a specific configuration. Independent enable pins allow complete flexibility in powering up and down the outputs. The outputs are protected against overcurrent and undervoltage.

The device incorporates a fully integrated current-mode boost converter and a current-mode inverter with external rectifier. The EV kit operates at one of two switching frequencies, 420kHz or 2.1MHz. Operation at 2.1MHz makes possible very compact dual-output power supplies.

The EV kit demonstrates the device’s features of adjustable output voltage and fault protection.