13A Current Mode, Boost Converter
with Input Disconnecting Function
The Future of Analog IC Technology
PRELIMINARY SPECIFICATIONS SUBJECT TO CHANGE
MPS CONFIDENTIAL AND PROPRIETARY INFORMATION– INTERNAL USE ONLY
The MP3428 is a 600 kHz fixed frequency, high
efficiency, wide input range, current mode boost
converter with input disconnecting function and
adjustable inrush current limit. This converter is
specially designed for systems where a voltage
bus must be protected to prevent systems from
being interrupted or damaged by the load short
conditions. It features internally a current limit
switch gate drive, a 10mΩ, 24V power switch
and a synchronous gate driver for high
converter efficiency. An external compensation
pin gives the user flexibility in setting loop
dynamics and obtaining the optimal transient
performance at all conditions.
The MP3428 also includes under-voltage
lockout, switching current limiting and thermal
shutdown to prevent damage in the event of
output overload. The MP3428 is available in a
low profile 22-pin 3mmx4mm FCQFN package.
• Fully Compliant to Intel Thunderbolt
• Input Disconnecting Function
• Input Current Limit Switch Gate Drive
• SR Gate Drive
• Internal 10mΩ, 24V Power MOSFET
• Enhanced PWM Mode for Fast Transient
• 3V-20V Wide Input Range
• Output Voltage as High as 22V
• Programmable UVLO, UVLO Hysteresis
• Low Shutdown Current < 1µA
• Thermal Shutdown at 160°C
• Available in 3x4mm FCQFN22 Package
• Thunderbolt Interface
• Notebook and Tablet
• Hot Swap Power Management
• Telecom Power Supply
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.
MP3428 Rev. 0.1
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
Preliminary Specifications Subject to Change
© 2013 MPS. All Rights Reserved.