MPQ4462 Datasheet, PDF (1/20 Pages) Monolithic Power Systems – 3.5A, 4MHz, 36V, Step-Down Converter AEC-Q100 Qualified

The Future of Analog IC Technology
MPQ4462
3.5A, 4MHz, 36V, Step-Down Converter
AEC-Q100 Qualified
DESCRIPTION
The MPQ4462 is a high-frequency, step-down,
switching regulator with an integrated, high-side,
high-voltage, power MOSFET. It provides a 3.5A
output with current-mode control for fast loop
response and easy compensation.
The wide 3.8V-to-36V input range accommodates
a variety of step-down applications, including
those in an automotive input environment. A
120µA operational quiescent current allows for
battery-powered applications.
Switching-frequency scaling allows for high
power-conversion efficiency over a wide load
range by scaling down the switching frequency at
light loads to reduce the switching and gate
driving losses.
The frequency foldback prevent inductor-current
runaway during startup, and thermal shutdown
provides reliable and fault tolerant operation.
The MPQ4462 can operate at up to 4MHz for
EMI-sensitive applications, such as AM radio
and ADSL applications.
The MPQ4462 is available in both 3mm×3mm
QFN10 and SOIC8E packages.
TYPICAL APPLICATION
FEATURES
• 120μA Quiescent Current
• Wide 3.8V-to-36V Input Range
• 150mΩ Internal Power MOSFET
• Up to 4MHz Programmable Switching
Frequency
• Stable with a Ceramic Capacitor
• Internal Soft-Start
• Internally-Set Current Limit without a Current
Sensing Resistor
• Output Adjustable from 0.8V to 30V
• Available in 3mm×3mm QFN10 and SOIC8E
Packages.
• Available in AEC-Q1000 Qualified Grade 1
APPLICATIONS
• High-Voltage Power Conversion
• Automotive Systems
• Industrial Power Systems
• Distributed Power Systems
• Battery Powered Systems
All MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
MPQ4462 Rev. 1.11
www.MonolithicPower.com
1
7/17/2013
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