MAX20428

RECOMMENDED FOR NEW DESIGNS

Eight-Output Mini PMIC for ADAS Applications

Part Models
6
1ku List Price
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Part Details

  • Multiple Functions for Small Size
    • Synchronous 5V, 500mA Boost Converter
    • Dual 1A Synchronous Buck Converters
      • 0.8V to 3.9875V in 12.5mV Steps
      • 1.3A Peak Output Capability
    • Single 3A Synchronous Buck Converter
      • 0.8V to 3.9875V in 12.5mV Steps
      • 3.5A Peak Output Capability
    • Three 300mA Low-Dropout Linear Regulators
    • One 25mΩ Load Switch
    • Programmable Challenge/Response Watchdog
    • I2C Fast-mode Plus Compatible Interface with Packet-Error Checking (PEC) Option
    • 2.1MHz Internal Operation with Spread-Spectrum Option
  • High-Precision Performance
    • ±1.5% Output Voltage Accuracy
    • ±1% OV/UV Monitoring
    • Excellent Load-Transient Performance
  • Diagnostics and Redundant Circuits
    • ASIL C Compliant
    • Redundant Reference
    • Fail-Safe on Open Pins
    • Shorted Pin Detection on RESET
    • PV Supply OV/UV Monitor
  • Robust for the Automotive Environment
    • Current-Mode, Forced-PWM Operation
    • Overtemperature and Short-Circuit Protection
    • 5mm x 5mm, 28-Pin, Side-Wettable TQFN
    • -40°C to +125°C Grade 1 Automotive Temperature Range
MAX20428
Eight-Output Mini PMIC for ADAS Applications
MAX20428 Simplified Block Diagram
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Documentation

Data Sheet 1

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Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA).

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Tools & Simulations

Software Development 1


Evaluation Kits

eval board
MAX20428EVKIT

Evaluation Kit for MAX20428

Features and Benefits

  • Integrated IC Minimizes Board Area and Layout
  • Input Voltage Range from 3.0V to 4.2V
  • User-Programmable Settings through I2C
  • Challenge/Response or Simple Windowed Watchdog
  • 2.1MHz Fixed-Frequency Switching
  • Error Monitoring through ERROR and RESET Pins
  • Fully Assembled and Tested
  • Proven PCB Layout with Automotive-Grade Components

Product Details

The MAX20428 evaluation kit (EV kit) is a fully assembled and tested application circuit for the MAX20428 high-efficiency eight-output low-voltage PMIC. The EV kit can test each of the outputs to full load within the normal operation input range of +3V to +4.2V. The IC features two modes of watchdog operation: challenge/response and simple windowed mode. These can also be disabled for simplified evaluation. I2C communication must be used to configure the MAX20428 and monitor errors. A PC-to-I2C interface (such as the MINIQUSB or MAX32625PICO) and software for reading and writing to I2C registers (such as SimpleI2C) will simplify testing.

MAX20428EVKIT
Evaluation Kit for MAX20428
MAX20428 EVKIT Board Photo Angle MAX20428 EVKIT Board Photo Top MAX20428 EVKIT Board Photo Bottom

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