MAX20039

RECOMMENDED FOR NEW DESIGNS

Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture

Industry's First 2Mhz Automotive Buck-Boost Converter Operates Seamlessly from 2V Cold Crank to V_BATT

Data Sheet (Rev. 16) Product Selection Table

Part Models: 5
1ku List Price: Starting From $2.09

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Overview

Meets Stringent Automotive Quality and Reliability Requirements
- 2V to 36V Operating V_IN Allows Operation in Cold-Crank Conditions
- Tolerates Input Transients Up to 40V
- EN Pin Compatible from 3.3V to 40V
- 0.6A (max) Output Current (MAX20039)
- 1.2A (max) Output Current (MAX20040)
- −40°C to +125°C Automotive Temperature Range
- AEQ-100
- Increased Efficiency with Reduced BOM Cost and Board Space
- Integrated FETs H-Bridge Architecture
- Fixed Output Voltages
- 20-Pin SWTQFN Package

Low Quiescent Current Helps Designers Meet Stringent OEM Current Requirements (B and D Version only)
- 52µA Quiescent Current when in Standby Mode
- 10µA (max) Quiescent Current in Shutdown Mode
High Switching Frequency Allows Use of Small External Components
- 200kHz to 2.2MHz Operating Frequency
- Skip Mode for Efficient Low-Power Operation (B and D version only)
- Fixed-Frequency PWM Mode
- External Frequency Synchronization
Reduced EMI Emissions at the Switching Frequency
- Spread Spectrum Can Be Enabled or Disabled

The MAX20039/MAX20040 ICs are a small, synchronous buck-boost converter family with integrated high-side and low-side switches. The MAX20040 is designed to deliver up to 1.2A with input voltages from 2V to 36V while using only 52μA quiescent current at no load. The ICs provide an accurate output voltage of ±2%. Voltage quality can be monitored by observing the PGOOD signal.

The MAX20039/MAX20040 offer a fixed output voltage of 5V and a programmable range of 4.0V to 15V. See the Ordering Information table for more details. Frequency is adjustable from 220kHz to 2.2MHz, which allows for small external components, reduced output ripple, and guarantees no AM interference. Skip mode with low quiescent current of 52μA is available in the MAX20040B and MAX20040D versions of the IC. The ICs can operate with spread-spectrum frequency modulation designed to minimize EMI-radiated emissions due to the modulation frequency.

The MAX20039/MAX20040 are available in a small, 4mm × 4mm, 20-pin, side-wettable TQFN package and use very few external components.

Applications

Body Electronics
Infotainment Systems
Point-of-Load (PoL) Power Supply
Power over Coax (PoC)
Start-Stop Systems

Part Models: 5
1ku List Price: Starting From $2.09

Documentation

Data Sheet 1

MAX20039/MAX20040: Automotive, 2V to 36V, 2.2MHz, 0.6A/1.2A Buck-Boost Converters with Integrated H-Bridge Architecture Data Sheet (Rev.16) 05/10/2024

Technical Articles 1

Provide a Safe Power Path from the Car Battery to Remote Cameras 01/20/2020

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
MAX20039ATPA/VY+T	20-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX20039BATPA/VY+	20-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX20039BATPA/VY+T	20-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX20039BATPB/VY+	20-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX20039BATPB/VY+T	20-LFCSP_SS-4X4X0.75	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Apr 2, 2019 - 1924A ASSEMBLY
		pcn_1924a
MAX20039ATPA/VY+T	PRODUCTION	pcn_1924a
Oct 16, 2023 - 2357 WAFER FAB
		pcn_2357
MAX20039BATPA/VY+	PRODUCTION
MAX20039BATPA/VY+T	PRODUCTION
MAX20039BATPB/VY+	PRODUCTION
MAX20039BATPB/VY+T	PRODUCTION

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

Software Resources

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Tools & Simulations

EE-Sim Power® Tools 1

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

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Evaluation Kits

Evaluation Kit for the MAX20039/MAX20040/MAX26039/MAX26040

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Features and Benefits

+2V to +36V Input Supply Range
Delivers up to 1.2A Output Current (MAX20040)
Frequency-Synchronization Input
Enable Input
Voltage-Monitoring PGOOD Output
Enable or Disable Spread Spectrum
Proven PCB Layout
Fully Assembled and Tested

Product Details

The MAX20040 evaluation kit (EV kit) is a fully assembled and tested application circuit for the MAX20040, which is a small, synchronous buck-boost converter family with integrated high-side and low-side switches. Each EV kit is designed to deliver up to 1.2A with input voltages from +4.5V to +36V, while using only 52µA quiescent current at no load. Input voltage can be lowered to +2V after regulation. Output-voltage quality can be monitored by observing the PGOOD signal.