MAX20412
Automotive Low-Voltage 2-Channel Step-Down Controller
Dual-Output, High-Efficiency Step-Down Controller for Automotive SOC Core Power
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Overview
Features and Benefits
- 2-Channel, High-Efficiency DC-DC Controller in a Small Solution Size
- 3.0V to 5.5V Operating Supply Voltage
- OUT1 Supports 60A (with Two Phases)
- OUT2 Supports 30A
- High-Precision Regulator for Applications Processors
- ±2% Output-Voltage Accuracy
- Differential Remote-Voltage Sensing
- I2C-Controlled Output Voltage: 0.25V to 1.275V in 6.25mV Steps
- Excellent Load-Transient Performance
- Programmable Compensation
- Low-Noise Features Reduce EMI
- 2.2MHz or 1.1MHz Operation
- Spread-Spectrum Option
- Frequency-Synchronization Input/Output
- Current-Mode, Forced-PWM, and Skip Operation
- Robust for the Automotive Environment
- Individual Enable Inputs and PGOOD Outputs
- Low RDS(ON) External MOSFETs
- Overtemperature and Short-Circuit Protection
- 32-Pin (5mm x 5mm) TQFN with Exposed Pad
- -40°C to +125°C Operating Temperature Range
- AEC-Q100 Qualified
Product Details
The MAX20412 is a dual-output, high-efficiency, synchronous step-down controller IC that operates with a 3.0V to 5.5V input voltage range and provides a 0.25V to 1.275V output voltage range. The controller architecture enables up to 30A of load current per phase. Channel 1 has an option to operate with two phases to deliver higher load current, making this device ideal for automotive point-of-load (PoL) and post-regulation applications.
The IC achieves ±2% output error over load, line, and temperature ranges. The IC features a 2.2MHz/1.1MHz fixed-frequency PWM mode for better noise immunity and load-transient response, and a pulse-frequency modulation mode (skip) for increased efficiency during light-load operation. The 2.2MHz frequency operation allows the use of all-ceramic capacitors and minimizes external components. The programmable spread-spectrum frequency modulation minimizes radiated electromagnetic emissions. The MAX20412 is offered with factory-preset output voltages (see the Selector Guide for options). The I2C interface supports dynamic voltage adjustment with programmable slew rates for each channel. Other features include programmable soft-start, overcurrent, and overtemperature protections.Applications
- Automotive
- Core Processor System/GPU Power
Product Lifecycle
Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.