MAX20028

RECOMMENDED FOR NEW DESIGNS

Step-Down Controller with Dual 2.1MHz Step-Down DC-DC Converters

Automotive PMIC for Cluster/ADAS Meeting ASIL Specifications

Part Models
8
1ku List Price
Starting From $2.50
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Part Details

  • High-Efficiency Voltage DC-DC Controller Saves Power
    • 3.5V to 36V Operating Supply Voltage
    • Output Voltage: Pin Selectable, Fixed, or Resistor-Divider Adjustable
    • 350kHz to 2.1MHz Operation
    • 30µA Quiescent Current with DC-DC Controller Enabled
  • Dual 2.1MHz DC-DC Converters with Integrated FETs Saves Space
    • OUT2 and OUT3 Are Cascaded from OUT1, Improving Efficiency
    • 3A Output Current
    • 0.8V to 3.95V Output Voltage
    • 25% Lower COUT2 and COUT3 Compared to the MAX16993
    • Fixed or Resistor-Divider-Adjustable Output Voltage
    • 180° Out-of-Phase Operation
  • High Accuracy to Meet ASIL Specification
    • ±1% FB Accuracy, ±2% Output-Voltage Accuracy, and ±0.5% OV/UV Accuracy
    • Excellent Load-Transient Performance
  • Robust for the Automotive Environment
    • Current-Mode Architecture with Forced-PWM and Skip Modes of Operations
    • Frequency Synchronization Input/Output Reduces System Noise
    • Individual Enable Inputs and Active-Low RESET1 Outputs
    • Overtemperature and Short-Circuit Protection
    • AECQ-100 Qualified
MAX20028
Step-Down Controller with Dual 2.1MHz Step-Down DC-DC Converters
MAX20028 Simplified Schematic
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Documentation

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Hardware Ecosystem

Parts Product Life Cycle Description
Micropower Buck Regulators 1
MAX16993 PRODUCTION Step-Down Controller with Dual 2.1MHz Step-Down DC-DC Converters
Multiple Output Buck Regulators 1
MAX16930 PRODUCTION 2MHz, 36V, Dual Buck with Preboost and 20µA Quiescent Current
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Evaluation Kits

MAX20028EVKIT

Evaluation Kit for the MAX20028

Features and Benefits

  • 3.5V to 36V Input Range
  • 20µA Quiescent Current with DC-DC Controller Enabled
  • Output Voltages
    • 5V Output at 5A (High-Voltage, Step-Down Controller, Buck 1)
    • 3.3V Output at 3A (Step-Down Converter, Buck 2)
    • 1.2V Output at 3A (Step-Down Converter, Buck 3)
  • High-Frequency Operation
    • 2.1MHz or Optional Divide-Down Operation for Buck 1
  • Individual Enable Inputs and Reset Outputs
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX20028 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that contains all the components necessary to evaluate the MAX20028 power-management IC (PMIC). The EV kit includes one high-voltage step-down controller and two low-voltage step-down converters.

The EV kit can operate from 3.5V to 36V input voltages and is optimized for automotive infotainment applications. The high-voltage controller is configured for a 5V output that provides at least 5A. The low-voltage step-down converters are configured for 3.3V and 1.2V, each providing up to 3A. The EV kit can be easily reconfigured to operate in continuous PWM mode, skip mode, or external synchronization operation.

The EV kit comes with MAX20028ATJA/VY+ device installed, but is capable of evaluating other variants of the MAX20028 IC. Refer to the MAX20028 IC data sheet for external component selection.

Applications

  • ADAS
  • Automotive
  • Industrial

MAX20028EVKIT
Evaluation Kit for the MAX20028

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