MAX20419

RECOMMENDED FOR NEW DESIGNS

High-Efficiency, 3-Output, Low-Voltage DC-DC Converter

Small Automotive PMIC for ADAS Applications Requiring ASIL

Data Sheet (Rev. 17) Product Selection Table
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Overview

  • Multiple Functions for Small Size
    • Synchronous 750mA Boost Converter
    • Fixed at 5V Output
    • Dual Synchronous Buck Converters up to 3.6A
      • Factory Configurable from 0.8V to 3.8V in 25mV Steps
    • Programmable Windowed Watchdog
    • 3.0V to 5.5V Operating Supply Voltage
    • 2.2MHz Operation
    • Individual RESET_ Outputs
    • High-Precision Performance
      • ±1.9% Output-Voltage Accuracy (OUT1) and ±1.4% Output-Voltage Accuracy (OUT2, OUT3)
      • ±1.3% OV/UV Monitoring (OUT1–OUT3, PV)
      • Excellent Load-Transient Performance
  • Diagnostics and Redundant Circuits 
    • ASIL C Compliant
    • Redundant Reference
    • Fail Safe on Open Pins
    • Shorted Pin Detection on RESET1–RESET3
    • Input Overvoltage Detection
  • Robust for the Automotive Environment
    • Current Mode, Forced-PWM, and Skip Operation
    • Overtemperature and Short-Circuit Protection
    • 24-Pin (4mm x 4mm) TQFN with Exposed Pad
    • -40°C to +125°C Automotive Temperature Range
MAX20419
High-Efficiency, 3-Output, Low-Voltage DC-DC Converter
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Documentation

Data Sheet 1

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Software Resources

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Evaluation Kits

MAX20419EVKIT

Evaluation Kit for the MAX20419

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Features and Benefits

  • 3.0V to 5.5V Operating Supply Voltage
  • 5V at 750mA Synchronous Boost Converter (OUT1)
  • 1.25V at 2A Synchronous Buck Converter (OUT2)
  • 2.3V at 2A Synchronous Buck Converter (OUT3)
  • Programmable Windowed Watchdog
  • SYNC Mode Select/Input for Forced-PWM (FPWM) and Skip-Mode Selection, or External Frequency Synchronization
  • Individual Active-Low RESET_ Outputs
  • Active-Low PV_OV Input Power-Good Indicator
  • Minimized External Components
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20419 evaluation kit (EV kit) is a fully assembled and tested PCB that demonstrates the MAX20419ATGB/V+ power-management IC (PMIC). The EV kit includes three high-efficiency, low-voltage DC-DC converters: OUT1 boosts a 3.3V input to 5V at up to 750mA, while two synchronous step-down converters (OUT2, OUT3) provide output voltages of 2.3V and 1.25V up to 2A. The 2.2MHz switching-frequency operation allows for the use of all-ceramic capacitors and minimizes external components.

The EV kit features three on/off jumper controls and three reset outputs to indicate output status for each converter. The EV kit also provides a SYNC input to select the operating mode (PWM, skip, or external synchronization), and an open-drain power-good output (active-low PV_OV) that asserts when the input supply voltage is 3.7% above or below the target input voltage.

Applications

  • ADAS
  • Infotainment
  • SOC Power
MAX20419EVKIT
Evaluation Kit for the MAX20419

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