DESCRIPTION
The MP2733 is a 4.5A, highly integrated switchmode
battery charger management device for
single-cell Li-ion or Li-polymer batteries. This
device works with narrow voltage DC (NVDC)
system power path management, and is wellsuited
for a variety of applications, including
smartphones, tablets, wireless cameras, and
other portable devices. Its low-impedance power
path optimizes efficiency, reduces battery
charging time, and extends battery life. The I2C
interface allows the device to be flexibly
controlled with configurable charging and
system settings.
The MP2733 supports a wide range of input
sources, including standard USB host ports and
high-powered wall adapters with fast charge
capabilities. The MP2733 provides USB input
type detection via the DP/DM pins.
The device supports USB On-the-Go (OTG)
operation by supplying 5V on the input bus, with
an output current limit up to 3A.
The MP2733 initiates and completes a charging
cycle without software control. It automatically
detects the battery voltage and charges the
battery in different stages. Charging
automatically terminates when a full charge is
detected. When the charged battery drops below
the recharge threshold, the charger
automatically begins another charging cycle.
The charger provides various safety features for
battery charging and system operations,
including a charging safety timer, battery
temperature monitoring, and over-voltage
protection (OVP), and over-current protection
(OCP). If a fault occurs, the charger asserts an
INT signal to the host. The device provides
BATTFET disable control to enter shipping mode,
as well as system reset functionality via the DISC
pin.

FEATURES
• 3.7V to 16V Operating Input Voltage Range
• Up to 22V Sustainable Voltage
• High-Efficiency, 4.5A, 1.35MHz Buck
Charger with Up to 92% Charge Efficiency
with 3A Charge Current:
o Configurable D+/D- for Flexible Fast
Charge Protocol Support
• USB OTG with 4.8V to 5.5V Adjustable
Output: Up to 3A Output, Up to 93%
Efficiency with 1.5A Output
• NVDC Power Path Management
o Instant-On Works with No Battery or
Deeply Discharged Battery
o Ideal Diode Operation in Battery
Supplement Mode
• High Battery Discharge Efficiency with
14mΩ BATTFET Up to 8.5A
• I2C Interface for Flexible System Parameter
Setting and Status Reporting
• Fully Integrated MOSFETs, Current Sensing
• Dedicated DISC Pin to Control Shipping
Mode and System Reset
• 13μA Low Battery Leakage Current in
Shipping Mode
• Integrated ADC Monitors Input Voltage and
Current, Battery Voltage, Charge Current,
System Voltage, and Battery Temperature
• Charging Status Indicator
• Safety Features: Configurable JEITA for
Battery Temp Protection in Charge Mode,
Battery Charging Safety Timer, Thermal
Regulation and Shutdown, Watchdog
Monitoring I2C, and Input/System OVP
• Available in a QFN-26 (3.5mmx3.5mm)
Package

APPLICATIONS
• Tablet PCs
• Smartphones
• Wireless Cameras
• Other Portable Devices