MAX16993

PRODUCTION

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

Highly Integrated Automotive PMIC with Three DC-DC Step-Down Outputs, Low IQ, and Low Minimum On-Time

Data Sheet (Rev. 14) Product Selection Table
Viewing:

Overview

  • 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 Save Space
    • OUT2 and OUT3 are Cascaded from OUT1, Improving Efficiency
    • 3A Integrated FETs
    • 0.8V to 3.95V Output Voltage
    • Fixed or Resistor-Divider-Adjustable Output Voltage
    • 180° Out-of-Phase Operation
    • Robust for the Automotive Environment
  • Current-Mode Architecture with Forced-PWM and Skip Modes of Operation
    • Frequency Synchronization Input/Output Reduces System Noise
    • Individual Enable Inputs and Active-Low RESET_ Outputs
    • Overtemperature and Short-Circuit Protection
    • AECQ-100 Qualified
    • 32-Pin TQFN-EP (5mm x 5mm x 0.75mm) and Side-Wettable QFND-EP (5mm x 5mm x 0.8mm)
    • -40°C to +125°C Operating Temperature Range

The MAX16993 power-management integrated circuit (PMIC) is a 2.1MHz, multichannel, DC-DC converter designed for automotive applications. The device integrates three supplies in a small footprint. The device includes one high-voltage step-down controller (OUT1) designed to run directly from a car battery and two low-voltage step-down converters (OUT2/OUT3) cascaded from OUT1. Under no-load conditions, the MAX16993 consumes only 30µA of quiescent current, making it ideal for automotive applications.
The high-voltage synchronous step-down DC-DC controller (OUT1) operates from a voltage up to 36V continuous and is protected from load-dump transients up to 42V. There is a pin-selectable frequency option of either 2.1MHz or a factory-set frequency for 1.05MHz, 525kHz, 420kHz, or 350kHz. The low-voltage, synchronous step-down DC-DC converters run directly from OUT1 and can supply output currents up to 3A.
The device provides a spread-spectrum enable input (SSEN) to provide quick improvement in electromagnetic interference when needed. There is also a SYNC input for providing an input to synchronize to an external clock source (see the Selector Guide in the full data sheet). The device includes overtemperature shutdown and overcurrent limiting. The device also includes individual active-low RESET_ outputs and individual enable inputs. The active-low RESET_ outputs provide voltage monitoring for all output channels.
The MAX16993 is available in a 32-pin TQFN/side-wettable QFND-EP package and is specified for operation over the -40°C to +125°C automotive temperature range.

Applications

  • Automotive
  • Industrial
MAX16993
Step-Down Controller with Dual 2.1MHz Step-Down DC-DC Converters
MAX16993: Typical Application Circuit
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

Technical Articles 1

Product Highlight 1

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Evaluation Kits

MAX16993EVKIT

Evaluation Kit for the MAX16993

Buy Now View Details

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 MAX16993 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that contains all the components necessary to evaluate the MAX16993 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 a MAX16993AGJA/VY+ device installed, but is capable of evaluating other variants of the MAX16993 IC. Refer to the MAX16993 IC data sheet for external component selection.

Applications

  • Automotive
  • Industrial
MAX16993EVKIT
Evaluation Kit for the MAX16993

Latest Discussions

No discussions on MAX16993 yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed