Product Highlights
• Reduces External Components and Total Cost
• No Schottky—Synchronous Operation
• Internal Compensation
• Internal Soft-Start
• All-Ceramic Capacitors, Ultra-Compact Layout
• Flexibility to Support Multiple Rails in a System
• Wide 4.5V to 60V Input Voltage Range
• Fixed 3.3V and 5V Output Options
• Adjustable Output from 0.9V to 97% of VIN
• Delivers Up to 300mA Load Current
• 200kHz to 1MHz Adjustable Switching Frequency
with External Clock Synchronization
• Reduces Power Dissipation
• 95.8% Peak Efficiency for VIN = 15V,
VOUT = 12V, IOUT = 150mA
• Shutdown Current = 2.2μA (typ)
• PFM Options for Superior Light Load Efficiency
• Operates Reliably in Adverse Industrial Environments
• Hiccup-Mode Current Limit and Autoretry Startup
• Open-Drain Power Good Output (RESET Pin)
• Programmable EN/UVLO Threshold
• Monotonic Startup into Prebiased Output
• Overtemperature Protection
• High Industrial -40°C to +125°C Ambient Operating
Temperature Range/-40°C to +150°C Junction
Temperature Range
• Complies with CISPR32 (EN55032) Class B
Conducted and Radiated Emissions

Key Applications
• Factory Automation
Within the factory automation space, which includes
many different applications, one key need is the ability
to generate less heat. Heat within the system must be
managed, prevent overheating and shutdown. The
MAX17570 produces less heat as it is a fully synchronous
DC-DC with integrated FETs with high efficiency. The
more efficient a switching regulator is, the less it loses
the power and therefore create less heat in the system.
• Aftermarket Automotive
An example of within the aftermarket automotive space
where the MAX17570 provides a benefit is asset
tracking application. Asset tracking has increased in
popularity as the ability to wireless connect to these
monitors has become easier. Typically, these units are
designed to be as small as possible. The MAX17570 has
integrated FETs, integrated compensation, and can
even have pre-programmed output voltages, all
delivering a small solution size. Small size and fewer
components help drive overall design cost down for the
system.
• General Point of Load
General point of load is just that, a generic term. It
applies to a switching regulator that serves many
applications and design environments. Critical to any
environment is the robustness of the power conversion.
With an operating range of -40°C to +125°C, current limit
protection, overtemperature protection, and the ability to
adhere to the CISPR-32 class B emission standards, the
MAX17570 delivers a small, highly efficient power
conversion in the most adverse environments and
provides the designer the peace of mind that it is robust
and reliable.