General Description

The MAX16993 power-management integrated circuit (PMIC) is a 2.1MHz, multichannel, DC-DC con

verter 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.

Features

● High-Voltage DC-DC Controller

• 3.5V to 36V Operating Supply Voltage

• 42V Load-Dump Protection

• Output Voltage: Pin Selectable, Fixed or Resistor-Divider Adjustable

• 350kHz to 2.1MHz Operation

• 30μA Quiescent Current with DC-DC Controller Enabled

● Dual High-Efficiency 2.1MHz DC-DC Converters

• Run Directly from OUT1

• 3A Integrated FETs

• 0.8V to 3.95V Output Voltage

• Fixed or Resistor-Divider-Adjustable Output Voltage

• 180° Out-of-Phase Operation

● Individual Enable Inputs

● Individual RESET_ Outputs

● Thermal-Warning Indication Output

● Forced-PWM and Skip Modes

● Overtemperature and Short-Circuit Protection

● 32-Pin (5mm x 5mm x 0.8mm) Side-Wettable TQFN-EP

● -40°C to +125°C Operating Temperature Range

Applications

● Automotive

● Industrial