EVALUATION KIT AVAILABLE Click here to ask about the production status of specific part numbers. MAX20002/MAX20003 36V, 220kHz to 2.2MHz, 2A/3A Fully Integrated Step-Down Converters with 15A Operating Current General Description Benefits and Features The MAX20002/MAX20003 are small, synchronous Synchronous DC-DC Converter with Integrated FETs buck converters with integrated high-side and low-side MAX20002 = 2A MOSFETs. Each device is designed to deliver up to 2A/3A MAX20003 = 3A 15A Quiescent Current When in Skip Mode with input voltages from 3.5V to 36V, while using only 15A quiescent current at no load. Voltage quality can be Small Solution Size Saves Space monitored by observing the PGOOD signal. The devices 220kHz to 2.2MHz Adjustable Frequency can operate in dropout by running at 98% duty cycle, Programmable 1V to 10V Output for the Buck or making them ideal for automotive applications. Fixed 5V/3.3V Options Available Fixed 8ms Internal Soft-Start The devices offer fixed output voltages of 5V/3.3V, along with the ability to program the output voltage between 1V Fixed Output Voltage with 2% Output Accuracy (5V/3.3V) or Externally Resistor Adjustable (1V to to 10V. Frequency can be programmed using a resistor 10V) with 1% FB Accuracy to ground on the FOSC pin from 220kHz to 2.2MHz. The devices offer a forced fixed-frequency mode and skip PGOOD Output and High-Voltage EN Input Simplify mode with ultra-low quiescent current of 15A. They have Power Sequencing a pin that can be programmed to turn on/off the spread Protection Features and Operating Range Ideal for spectrum, further helping systems designers with better Automotive Applications EMC management. Operating V Range of 3.5V to 36V IN The MAX20002/MAX20003 are available in a small 5mm x 42V Load-Dump Protection 5mm 20-pin TQFN package with exposed pad and use very 99% Duty-Cycle Operation with Low Dropout few external components. -40C to +125C Automotive Temperature Range AEC-Q100 Qualified Applications Fast and Accurate Overvoltage Protection Point-of-Load Applications in Automotive Enables Fast Recovery from Automotive Transients Distributed DC Power Systems (MAX20002C/E and MAX20003C/E) Navigation and Radio Head Units Ordering Information appears at end of data sheet. 19-7311 Rev 17 7/20MAX20002/MAX20003 36V, 220kHz to 2.2MHz, 2A/3A Fully Integrated Step-Down Converters with 15A Operating Current Typical Application Circuit/Block Diagram V = 3.3V/5V OUT AT 3A, 2.2MHz 2.2H 0.1F 2 x 22F FOSC BST 12k OUT PGND MAX20002 MAX20003 FB PGND COMP SPS 20.0k BIAS PGOOD 2.2F 1,000pF VBAT 2.2F 4.7F Maxim Integrated 2 www.maximintegrated.com AGND FSYNC EP N.C. EN LX SUPSW SUPSW LX SUP LX