MAX20021ATIA/V+T | Automotive Quad DC/DC PMIC | 4-Rail Buck Converter

Product Overview

     The MAX20021ATIA/V+T is a highly integrated power management IC (PMIC) that incorporates four low-voltage, high-efficiency step-down DC/DC converters with integrated MOSFET switches. Each converter output can be factory or resistor configured for fixed voltages ranging from approximately 1.0 V to 4.0 V and deliver up to 1 A of current per channel. With operation over a 3.0 V to 5.5 V input supply and a fixed 3.2 MHz PWM switching frequency, the device enables compact, multi-rail point-of-load regulation for automotive and industrial system architectures.

Key Features

• Four integrated low-voltage step-down DC/DC converters
• Each channel capable of up to 1 A continuous output
• Configurable fixed output voltages ~1.0 V to 4.0 V
• Operates from 3.0 V to 5.5 V input supply
• High-frequency PWM operation at ~3.2 MHz
• Integrated MOSFET switches for high efficiency
• Individual enable and power-good/reset outputs
• Forced PWM and spread-spectrum options for EMI optimization
• Two channels operate 180° out-of-phase to reduce input ripple
• Safety features: OV/UV monitoring, short-circuit/over-temp protection
• AEC-Q100 automotive qualification, –40 °C to +125 °C range
• Compact 28-pin TQFN with exposed pad

Applications

• Automotive point-of-load power rails
• Automotive post-regulation supplies
• Multi-rail distributed power systems
• Embedded and industrial controllers
• IoT and edge computing modules
• Communication and networking equipment
• Compact power solutions requiring multiple rails

Electrical Characteristics