The Future of Analog IC Technology
The MP2669 is a highly integrated, switch-
mode, battery charge and system power-path
management device designed for a single-cell
Li-ion or Li-polymer battery for use in a wide
range of portable applications.
The IC has different operating modes (charge
mode, boost mode, and sleep mode) to allow
for management of the system and battery
power based on the state of the input and
When an input power is present (up to 14V), the
device operates in charge mode. The device
detects the battery voltage automatically and
charges the battery in four phases: trickle
current charge, pre-charge, constant current,
and constant voltage charge.
The IC has an integrated IN-to-SYS pass-
through path to pass the input voltage to the
system, even when charging is disabled. The
path-through path has high priority over the
charging path. The MP2669 manages the input
power and meets the priority of the system
power demand with the integrated input current
and input voltage regulation function.
In the absence of the input source, the MP2669
enters sleep mode to minimize the power
dissipation of the battery. If the system load is
at SYS, the MP2669 switches to boost mode to
power SYS from the battery. When working with
the interface IC, the MP2669 can support
QC3.0 with output short protection.
With the I2C interface, the IC can flexibly
program the charging and boosting parameters,
providing the operation status.
To guarantee safe operation, the IC limits the
die temperature to a preset value 120°C
(default). The IC also provides other safety
features, including input over-voltage protection
(OVP), battery OVP, thermal shutdown, and
battery temperature monitoring.
5A, Battery Charger
with 3A Boost System Current and
4.0V to 14V Operation Voltage Range
Up to 24V Sustainable Input Voltage
BC1.2 Detection with I2C Programmable
Integrated Input Current-Based and Input
Voltage-Based Power Management
Up to 4.5A Programmable Charge Current
Reverse Boost Operation Mode with up to
3A Output Current and Adjustable 5V to
14V Output Voltage to Support QC3.0 with
an Interface IC that Implements
Qualcomm's Quick Charge 3.0 Specification
Analog Voltage Output IB Pin for Battery
Programmable 3.1 - 4.675V Charge Voltage
with 0.5% Accuracy
Four LED Battery Gauge Indicators
JEITA-Compatible Negative Temperature
Coefficient Protection in both Charge and
Thermal Regulation and Thermal Shutdown
USB Output Cable Impedance
Integrated Short-Circuit Protection (SCP) for
Integrated Short-Circuit Protection (SCP)
and Over-Voltage Protection (OVP) for
Integrated 8-Bit SAR ADC for Battery
Available in a QFN-28 (4mmx4mm)
Power-Bank Applications for Smartphones,
Tablets, and Other Portable Devices
All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For
MPS green status, please visit the MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
MP2669 Rev. 1.02
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