MAX25540

PRODUCTION

Automotive 4-Output Display Power Solution

Automotive PMIC for GMSL2 Deserializer for Automotive Display Applications

Data Sheet (Rev. 0)

Product Selection Table

Part Models: 2
1ku List Price: Starting From $3.53

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Overview

High Integration
- Complete Display Power Solution from Automotive Battery
- One High-Voltage 2.1A Buck Converter (3.3V)
- One High-Voltage 100mA Low-I_Q Linear Regulator (3.3V)
- One Low-Voltage 1.6A Buck Converter (1V)
- One 175mA Low-Voltage Linear Regulator (1.8V)
- Power-Good Outputs

Robust and Low EMI
- Programmable Switching Frequency
- Internal Spread-Spectrum Oscillator
- Slew-Rate Controlled Switching
- Thermal Shutdown Protection

Supports the Power Requirement of GMSL Parts
Compact TQFN20 4mm x 4mm Package
AECQ100 Grade 2

The MAX25540 is a 4-channel power-management IC designed to accommodate the main rails used in modern automotive TFT displays. The IC supports the power requirement of GMSL parts. The MAX25540 and the MAX25530 TFT power supply and LED backlight driver combine to provide a two-chip solution to automotive display power supply requirements.

The MAX25540 integrates a high-voltage buck converter that transforms battery voltages into a 3.3V intermediate rail. In addition, a high-voltage, always-on, low-quiescent-current linear regulator supplies power at 3.3V.

The low-voltage section consists of a fully-integrated DC/DC converter and an LDO running off the intermediate rail. The low-voltage DC/DC converter provides 1V, while the LDO produces 1.8V.

A single START control pin initiates the start-up sequence, thereby simplifying device control. The MAX25540's external pMOSFET control block allows battery voltage to be switched to a downstream device, such as a backlight boost converter.

The MAX25540 is available in a TQFN package and operates in the -40°C to 105°C temperature range.

Applications

Central Information Displays
Infotainment Displays
Instrument Clusters

Part Models: 2
1ku List Price: Starting From $3.53

Documentation

Data Sheet 1

MAX25540: Automotive 4-Output Display Power Solution Data Sheet (Rev.0) 12/15/2021
- Open Interactive Page

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
MAX25540GTP/V+	Thin Quad Flatpack, No Leads	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX25540GTP/V+T	Thin Quad Flatpack, No Leads	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

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

Software Resources

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Evaluation Kits

Evaluation Kit for the MAX25540

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Features and Benefits

High Integration
- Complete Display Power Solution from Automotive Battery
- One High-Voltage 2.1A Buck Converter (3.3V)
- One High-Voltage 100mA Low-IQ Linear Regulator (3.3V)
- One Low-Voltage 1.6A Buck Converter (1V)
- One Low-Voltage 175mA Linear Regulator (1.8V)
- Power-Good Outputs
Robust and Low electromagnetic interference (EMI)
- Programmable Switching Frequency
- Internal Spread Spectrum Oscillator
- Slew-Rate Controlled Switching
- Thermal Shutdown Protection
Proven PCB Layout
Fully Assembled and Tested
Automotive CISPR25 CLASS5 compliant
-40°C to +105°C Operating Temperature Range

Product Details

The MAX25540 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB used to evaluate the MAX25540 automotive 4-output display-power solution. The MAX25540 is a 4-channel power management integrated circuit (PMIC) designed to accommodate the main rails used in modern automotive thin-film transistor (TFT) displays. The MAX25540 integrates a high-voltage buck converter that transforms battery voltages into a 3.3V intermediate rail. In addition, a high-voltage, always-on, low-quiescent-current linear regulator supplies power at 3.3V. The low-voltage section consists of a fully integrated DC/DC converter and a low dropout (LDO) running off the intermediate rail. The low-voltage DC/DC converter provides 1V, while the LDO produces 1.8V. A single START control pin initiates the start-up sequence, thereby simplifying device control. The MAX25540’s external PMOSFET control block allows battery voltage to be switched to a downstream device, such as a backlight boost converter. The MAX25540 also embeds selectable switching frequencies with spread spectrum.

Applications

Central Information Displays
Infotainment Displays
Instrument Clusters

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