Click here to ask about the production status of specific part numbers. MAX20429 Dual 6A High-Efficiency Low Voltage Buck Converter General Description Benefits and Features The MAX20429 is a high-efficiency dual switching regula- High-Feature Set in an Ultra-Small Footprint tor that delivers up to 6A (peak) load current per output High-Efficiency DC-DC Converter from 0.5V to 1.5875V in 12.5mV steps and 1.6V to 3.8V Two Independent Outputs, up to 6A per Output in 50mV steps. The IC operates from 3V to 5.5V, making 3.0V to 5.5V Operating Supply Voltage it ideal for on-board point-of-load and post-regulation ap- Resistor-Adjustable Output Voltage plications. Total output error is less than 1.0% over load, Optional Factory-Preset Output Voltage line, and temperature. 2.1MHz/3.2MHz Options Enable Input The MAX20429 features fixed-frequency PWM mode op- Individual RESET Outputs eration with a switching frequency of 2.1MHz or 3.2MHz. Spread-Spectrum Option High-frequency operation allows for an all-ceramic capac- Peak Current-Mode Architecture itor design with small external components. 3mm x 3.5mm FCQFN The low-resistance on-chip switches ensure high efficien- High-Precision cy at heavy loads while minimizing critical inductances, 108/92% OV/UV Monitor making the layout a much simpler task with respect to dis- 3% OV/UV Accuracy crete solutions. Following a simple layout and footprint en- 1% Output Voltage Accuracy sures first-pass success in new designs. Excellent Load-Transient Performance The device features the MAXQ technology, which pro- PWM and SKIP Mode Operation vides precision transient performance and phase margin. TM MAXQ Power Architecture This allows obtaining the maximum power, performance, High Efficiency and precision from the converter over a very wide range of Up to 96% Efficiency 5V to 3.3V configurations. Up to 90% Efficiency 5V to 1V The MAX20429 has separate enable inputs and status -40C to +125C Operating Temperature Range outputs for each buck converter. The output voltage is AEC-Q100 Qualified preset at the factory to allow customers to achieve 1% output-voltage accuracy without using expensive 0.1% re- Ordering Information appears at end of data sheet. sistors. The devices offer factory programmable soft-start and RESET times. The devices include over-temperature shutdown and over- current limiting. All devices are designed to operate from 40 C to +125 C ambient temperature range. Applications Secondary Regulator for SoC / MCU Supply 19-100842 Rev 1 12/20MAX20429 Dual 6A High-Efficiency Low Voltage Buck Converter Simplified Block Diagram VIN PV1,PV2 OUT1 C IN L LX1 V OUT1 SYNC C OUT VIN PGND1 VDD MAX20429MAX20429 GND OUT2 L LX2 VOUT2 ENABLE 1 EN1 C OUT PGND2 EN2 ENABLE 2 VIO PGND RESET1 RESET2 www.maximintegrated.com Maxim Integrated 2