Data Sheet
MAX20415
2.2MHz Dual-Output, Low-Voltage Step-Down Converters
General Description
Benefits and Features
The MAX20415 is a high-efficiency, dual-output, low-voltage
DC-DC converter. The synchronous step-down converters
operate from a 3.0V to 5.5V input voltage range and provide
a 0.8V to 3.8V output voltage range at up to 3A. The buck
converters achieve ±1.5% output error over load, line, and
temperature range.
● Multiple Functions for Small Size
• Dual Synchronous Buck Converters up to 3A
• Fixed Output Voltage from 0.8V to 3.8V
• Resistor-Adjustable Output Voltage
• 3.0V to 5.5V Operating Supply Voltage
• 2.2MHz Operation
• Individual EN_ Inputs and RESET_ Outputs
• Input Supply Monitoring PV_OV Output
The IC features a 2.2MHz fixed-frequency pulse-width modula-
tion (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 for use of all-ceramic capaci-
tors, minimizing the total solution footprint. Programmable
spread-spectrum frequency modulation minimizes radiated
● High Precision
• ±1.5% Output-Voltage Accuracy
• ±1.5% Over/Undervoltage Monitoring Accuracy
• Good Load-Transient Performance
● Diagnostics and Redundant Circuits
• ASIL-C Compliant
electromagnetic emissions. Integrated low R
switches
DS(ON)
improve efficiency at heavy loads and make the layout a much
simpler task with respect to discrete solutions.
• Redundant Reference
• Fail Safe on Open Pins
• Shorted-Pin Detection on RESET1/RESET2
• Input Overvoltage Detection
The IC is offered with factory-preset or resistor-adjustable
output voltages. Other features include soft-start, over-current
protection, pin diagnostics, and overtemperature protections.
The MAX20415 is available in a lead(Pb)-free, 24-pin TQFN
package (see the Ordering Information/Selector Guide for
available options).
● Robust for the Automotive Environment
• Current-Mode, Forced-PWM, and Skip Operation
• Overtemperature and Short-Circuit Protection
• 4mm x 4mm, 24-Pin TQFN Package
• -40°C to +125°C Automotive Temperature Range
Applications
● Automotive ADAS Applications
● Short-Range Radar
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Rev. 6
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices
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