MAX20029BATIH/V+

Wide VIN, High-Efficiency Automotive Buck Regulator for In-Vehicle Power Rails

Product Description

Product Overview

The MAX20029BATIH/V+ is an automotive-qualified high-voltage step-down (buck) DC/DC converter from Maxim Integrated (now part of Analog Devices). It is designed to directly power automotive electronics from a wide input voltage range, tolerating load dump and cold-crank conditions. With high efficiency across a wide load range and integrated protection features, the MAX20029 is ideal for supplying MCUs, SoCs, sensors, and infotainment subsystems in modern vehicles.

Key Features

Automotive-qualified buck DC/DC regulator
Wide input voltage range for automotive battery systems
High efficiency over wide load conditions
Fast transient response
Low quiescent current for standby operation
Internal soft-start
Protection features: overcurrent, overtemperature, undervoltage lockout
Designed to withstand automotive transients
Compact TQFN (TIH) package
AEC-Q100 qualified
Tape & Reel packaging (V+)
RoHS compliant

Applications

Automotive MCU and SoC power rails
Infotainment and instrument cluster systems
ADAS sensors and camera modules
Body electronics and control units
Automotive gateways and communication modules
Industrial systems requiring wide VIN buck conversion

Electrical Summary

Parameter	Typical
Device Type	Automotive Buck Converter
Topology	Step-Down (Buck)
Input Voltage	Wide VIN (Automotive Battery)
Output Voltage	Fixed / Adjustable (variant-dependent)
Efficiency	High
Quiescent Current	Low
Protections	OCP / OTP / UVLO
Qualification	AEC-Q100
Package	TQFN (TIH)
Packing	Tape & Reel (V+)
Compliance	RoHS