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Switching Regulators for Automotive Applications

Automotive environments present a challenge for IC voltage regulators. The environment faces a very wide temperature range and also produces high levels of input transients and interference. In addition, a power supply must be able to survive load-dump transients, though this battery-related phenomenon is usually handled by separate circuitry (suppressors, clamps, overvoltage protectors). All of the switching regulators and LED display drivers presented below are either AEC-Q100 qualified or currently in the qualification process.

Note: Even though these products are designed for automotive applications, they can also be used in other designs. Automotive products generally offer very high input voltages and thus are good choices for industrial applications.

Infotainment, Instrumentation, General Purpose

While most automotive applications run from a 12V battery, most regulators that are directly attached to the battery power mains are rated for 28VDC to 40VDC to handle transients that get through the surge and overvoltage protectors. Downstream regulators that are not directly attached to the battery do not need the high voltage input specification. There are numerous applications for LDO regulators within an automotive environment, as they are fed by the output of a switching regulator for cleaner power in a transient-infested environment.
Step-Down Switching Regulators, Automotive Applications 
Step-Up Switching Regulators, Automotive Applications 

LED Lighting: Exterior, Interior, Display

Exterior automotive lighting applications include headlights, taillights, rear combination lights (RCL), and daytime running lights (DRL). In addition, many interior lighting applications exist, including general purpose interior lighting, dashboard lighting, and display backlighting. Maxim supplies industry-leading AEC-Q100 qualified switching regulators (SEPIC, buck/boost, step-up/step-down) specifically for these lighting designs.
AEC-Q100 LED Driver ICs, Exterior Applications (headlight, RCL, DRL) 
AEC-Q100 LED drivers ICs, Interior Applications (interior lighting, display backlighting) 

Also see:
Low-Dropout Linear Regulators

Technical Documentaion

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Technical Documentaion

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MAXREFDES179# Reference Design Board

The MAXREFDES179 reference design is a complete Universal Serial Bus (USB) type-C PD solution fe...

MAXREFDES1255: 4-Switch Buck-Boost Converter

MAXREFDES1255 is a 4-switch buck boost converter used to generate a positive step-up/stepdown ou...

MAXREFDES1252: Miniature, 14.5V/1.2A, No-Opto Flyback DC-DC Converter with 91.7% Efficiency Using MAX17690

The MAXREFDES1238 is a single-input, 6 output, scalable power solution. It meets the Xilinx Vers...

MAXREFDES1120: 3.3V/4A Synchronous Step-Down DC-DC Converter Using MAX15038

The MAXREFDES1120 is a synchronous step-down DC-DC converter using the MAX15038. The converter d...

MAXREFDES1249: Miniature Universal Input 36W AC-DC Flyback Converter using the MAX17595

The MAXREFDES1249 is a Universal Input (86 to 305VAC) Offline isolated power supply, delivers 36...

MAXREFDES1261: Asset Tracker Power Management Platform

The MAXREFDES01261 is a reference design of power management platform for asset tracker.

MAXREFDES1251: Single Output Flyback Converter Using MAX17596

MAXREFDES1251 is based on MAX17596 flyback converter. The MAX17596 is a peak-current-mode contro...

MAXREFDES_LIDAR1#: Quad-Channel LiDAR Receiver Front-End Reference Design, MAX40662, MAX40026

This is a front end LiDAR reference design featuring a 4-channel APD, 4-channel high bandwidth T...

MAXREFDES104#: Health Sensor Platform 3.0

HSP3 is a unique evaluation and development platform in a wearable form factor that demos the fu...

MAXREFDES1269: 5V/20A, Synchronous Step-Down Converter Using the MAX20098

The MAXREFDES1269 demonstrates how to build a DC-DC buck converter using the MAX20098 step-down ...