MPQ8883
High-Efficiency, 45V, 3A, Digital Calibrated
Synchronous Step-Down Converter
The Future of Analog IC Technology
DESCRIPTION
The MPQ8883 is a high-frequency synchronous
rectified, step-down converter with I
2
C control
interface
and
a
multipage
one-time
programmable memory. It can achieve up to 3A
continuous output current with excellent load
and line regulation over a wide input supply
range.
The MPQ8883 integrates internal high-side and
low-side power MOSFETs for high efficiency
without an external Schottky diode and is
available in a 16-pin QFN3x3 package. With
internal compensation and feedback divider, the
MPQ8883 can offer a very compact solution with
a minimum number of readily available standard
external components.
The MPQ8883 is designed to be very versatile.
The output voltage level can be adjusted from
0.6V to 12V, on the fly through an I
2
C serial
interface. Voltage slew rate, switching
frequency, enable and power savings mode are
also programmable via the I
2
C interface. This
allows users to optimize each output for their
particular requirements.
During
bench
evaluations,
different
configurations can be easily obtained through
the I
2
C interface instead of reworking external
components. Once the desired optimum setting
has been reached, a multipage one-time
programmable memory is available allowing the
settings to be permanently stored.
Current-mode operation provides fast transient
response and eases loop stabilization. Full
protection features include under-voltage
lockout (UVLO), over-voltage protection (OVP),
over-current protection (OCP) and over-
temperature protection (OTP).
Please email “mpq8883info@monolithicpower.com”
for more information
FEATURES
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Wide 3.5V to 45V Operation Input Range
3A Continuous Output Current
High Efficiency Synchronous Mode Control
Internal 80mΩ/40mΩ Low R
DS(ON)
MOSFETs
Power Good and Fault Indications
OVP, OCP and OTP
Internal Soft-Start
Programmable Address by Resistor
Programmability via I
2
C Interface
Output Range from 0.6V to 12V
Switching Frequency
Compensation Network
Slope Compensation
EN Threshold
Input UVLO Threshold
PG Threshold
AAM, CCM Selection
Light-load Mode Threshold
SCP Mode Selection
Current Limit Threshold
OVP Mode Selection
Input /Output OVP Threshold
OTP Threshold
Switching Slew Rate
Output Slew Rate (SS Time)
SYNC Input/Output Selection
Phase Shift
Frequency Dithering for Low-EMI
Operation
Multipage One-Time Programmable
Memory for Permanent Storage
Available in 16-pin QFN3x3 Package
Industrial Power Systems
Automotive Power Systems
Telecommunication Systems
APPLICATIONS
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.
MPQ8883 Rev. 0.2
www.MonolithicPower.com
9/13/2016
MPS Proprietary Information. Patent Protected.Unauthorized Photocopy and Duplication Prohibited.
Preliminary Specifications Subject to Change
© 2016 MPS. All Rights Reserved.
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Embedded System
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