Analog Devices MAX20012B Product Info

• 2-Channel High-Efficiency DC-DC Controller in a Small Solution Size
  • 3.0V to 5.5V Operating Supply Voltage
  • OUT1 Supports 24A (with Two Phases)
  • OUT2 Supports 12A
• High-Precision Regulator for Applications Processors
  • ±2% Output-Voltage Accuracy
  • Differential Remote Voltage Sensing
  • I²C-Controlled Output Voltage: 0.5V to 1.27V in 10mV Steps
  • 0.625V to 1.5875V in 12.5mV Steps
  • Excellent Load-Transient Performance
• Low-Noise Features Reduce EMI
  • 2.2MHz 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 R_DS(ON) External FETs
  • Overtemperature and Short-Circuit Protection
  • 32-Pin (5mm × 5mm) TQFN with Exposed Pad
  • -40°C to +125°C Operating Temperature Range
  • AECQ-100 Qualified

The MAX20012B 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 0.5V to 1.5875V output voltage range. The controller architecture enables up to 12A 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 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 MAX20012B 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