Top

Automotive Single 16A/12A Step-Down Converter

High-Efficiency, Synchronous Step-Down 12A/16A Converters with a 3V to 5.5V Input Voltage

Product Details

Key Features

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 3
VIN (V) (max) 5.5
VOUT1 (V) (min) 0.5
VOUT1 (V) (max) 1.275
IOUT1 (A) (max) 12
Switch Type Internal
Output Adjust. Method I2C
Synchronous Switching? Yes
Power Good Signal Yes
IQ (mA) (typ) 2.5
# DC-DC Outputs 1
Switching Frequency (kHz) 1100
2200
Design Tools EE-Sim
Package/Pins FC2QFN/17
Budgetary
Price (See Notes)
0
View Less

Simplified Block Diagram

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Parameters

Parametric specs for Step-Down Switching Regulators
VIN (V) (min) 3
VIN (V) (max) 5.5
VOUT1 (V) (min) 0.5
VOUT1 (V) (max) 1.275
IOUT1 (A) (max) 12
Switch Type Internal
Output Adjust. Method I2C
Synchronous Switching? Yes
Power Good Signal Yes
IQ (mA) (typ) 2.5
# DC-DC Outputs 1
Switching Frequency (kHz) 1100
2200
Design Tools generateDesignEESIMUrl('http://maxim.transim.com/pwm2/designreq/Index?partId=29711', '')
Package/Pins FC2QFN/17
Budgetary
Price (See Notes)
0

Key Features

  • High-Efficiency DC-DC Converter
  • Up to 16A Peak Output Current
    • MAX20499C: 16A
    • MAX20499D: 12A
  • Differential Remote Voltage Sensing
  • 3.0V to 5.5V Operating Supply Voltage
  • I2C Controlled Output Voltage: 0.5V to 1.275V in 6.25mV Steps
  • Excellent Load-Transient Performance
  • Programmable Compensation
  • 2.2MHz or 1.1MHz Operation
  • ±1.5% Output Voltage Accuracy
  • Active-low RESET Output
  • Current Mode, Forced-PWM Operation
  • Overtemperature and Short-Circuit Protection
  • 3.5mm x 4mm 17-Pin Side-Wettable FC2QFN
  • -40°C to +125°C Grade 1 Automotive Temperature Range
  • Applications/Uses

    • Automotive Entertainment Systems
    • SoC Core Power

    Description

    The MAX20499C/MAX20499D is a high-efficiency, synchronous step-down converter that operates with a 3.0V to 5.5V input voltage range and supplies a 0.5V to 1.275V output voltage range. The wide input/output voltage range and the ability to provide up to 16A peak output current make this device ideal for on-board point-of-load and post-regulation applications. The MAX20499C/MAX20499D achieves ±1.5% output error over load, line, and temperature ranges.

    The MAX20499C/MAX20499D features a 2.2MHz fixed-frequency PWM mode for better noise immunity and load-transient response. The 2.2MHz frequency operation allows for the use of all ceramic capacitors and minimizes external components. The spread-spectrum frequency modulation option minimizes radiated electromagnetic emissions. Integrated low RDS(ON) switches improve efficiency at heavy loads and make layout simpler than discrete solutions.

    The MAX20499C/MAX20499D is offered with factory-preset output voltage. The I2C interface supports dynamic voltage adjustment with programmable slew rates. Other features include programmable soft start, overcurrent, and overtemperature protections.

    Simplified Block Diagram

    MAX20499C, MAX20499D: Simplified Block Diagram MAX20499C, MAX20499D: Simplified Block Diagram Zoom icon

    Technical Docs

    Support & Training

    Search our knowledge base for answers to your technical questions.

    Filtered Search

    Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .