MP8847
6A, 2.7V-6V, High-Efficiency, Synchronous,
Step-Down Switcher with I
2
C Interface
In 2x3mm QFN
MP8847 Rev. 1.02 www.MonolithicPower.com 1
12/28/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The MP8847 is a highly integrated,high-
frequency, synchronous, step-down switcher
with an I
2
C control interface. The MP8847 can
support up to 6A of load current over an input
supply range from 2.7V to 6V with excellent
load and line regulation.
Constant-frequency hysteretic mode provides
an extremely fast transient response without
loop compensation to achieve high efficiency
easily under light-load condition.
The output voltage level can be controlled on-
the-fly through a 3.4Mbps I
2
C serial interface.
The voltage range can be adjusted from 0.6V to
1.235V in 5mV steps. The voltage slew rate,
switching frequency, and power-saving mode
are also selectable through the I
2
C interface.
Full protection features include internal soft
start, over-current protection (OCP), and over-
temperature protection (OTP).
The MP8847 requires a minimal number of
readily available, standard, external
components and is available in a compact
QFN-14(2mmx3mm) package.
FEATURES
I
2
C-Programmable Output Range from 0.6V
to 1.235V in 5mV Steps
2.7V to 6V Input Voltage Range
Up to 6A Load Current
Internal 35mΩ High-Side and 15mΩ Low-
Side Power MOSFETs
I
2
C-Compatible Interface up to 3.4Mbps
Factory Adjustable Switching Frequency
from 0.85MHz to 2.2MHz
Power-Saving Mode Selectable via I
2
C
Internal 1ms Soft Start
Power Good Indicator
Current Overload and Thermal Shutdown
Protection
Available in 2mmx3mm QFN-14 Package
APPLICATIONS
Processor Core Supplies
Micro Converters
ll MPS parts are lead-free, halogen-free, and adhere to the RoHS
directive. For MPS green status, please visit the MPS website unde
Quality Assurance. “MPS” and “The Future of Analog IC Technology” are
registered trademarks of Monolithic Power Systems, Inc.
TYPICAL APPLICATION
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PFM
PWM
