Data Sheet
MAX20015–MAX20018
Single 2.2MHz, Low-Voltage, Step-Down DC-DC Converter Family for Safety Applications
General Description
Benefits and Features
● High Feature Set in Ultra-Small Footprint
• High-Efficiency DC-DC Converter
• Up to 3A Output Current
The MAX20015–MAX20018 family of ASIL B-compliant
high-efficiency switching regulators delivers up to 3A load
current from 0.5V to 3.8V. The devices operate from a 2.7V
to 5.5V input voltage range, making them ideal for on-board
point-of-load and post-regulation applications. Total output
error is less than ±1.5% over load, line, and temperature.
• 2.7V to 5.5V Operating Supply Voltage
• Resistor-Adjustable or Factory-Preset Output Voltages
• Synchronizable, 2.2MHz Switching Frequency
• Enable Input
• RESET Output•Spread-Spectrum Enable Input
• Forced-PWM and Skip Modes
The devices feature fixed-frequency PWM mode operation,
with a 2.2MHz switching frequency. High-frequency operation
allows for an all-ceramic capacitor design and small external
components.
• Current-Mode Architecture
• 3mm x 3mm x 0.85mm 10-Pin TDFN
The low-resistance on-chip switches ensure high efficiency at
heavy loads while minimizing critical inductances, making the
layout a much simpler task with respect to discrete solutions.
Following a simple layout and footprint ensures first-pass suc-
cess in new designs.
● High Precision
• Selectable Overvoltage/Undervoltage Thresholds
• ±1.5% OV/UV Accuracy
• ±1.5% Output-Voltage Accuracy
• Excellent Load-Transient Performance
• Overtemperature and Short-Circuit Protection
• -40°C to +125°C Operating Temperature Range
The devices provide an enable input, spread-spectrum enable
input, and RESET output. The output voltage can be preset at
the factory to allow customers to achieve ±1.5% output-volt-
age accuracy without using expensive 0.1% resistors. In addi-
tion, the output voltage can be set to any customer value by
using two external resistors at the feedback, with 0.5V internal
reference. The devices offer factory-programmable soft-start
and RESET hold times.
● Diagnostics and Redundant Circuits
• ASIL B Compliant
• Redundant Reference
• Shorted Pin Detection on RESET
The 10-pin TDFN exposed pad devices include overtem-
perature shutdown and overcurrent limiting. All devices are
designed to operate over the -40°C to +125°C ambient tem-
perature range.
Applications
● Automotive
● Point-of-Load (PoL)
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Rev. 2
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