DESCRIPTION
The MPQ4475-E integrates a monolithic, stepdown,
switch-mode converter with a single USB
current-limit switch and charging port
identification circuit. The MPQ4475-E achieves
2.5A of continuous output current with excellent
load and line regulation over a wide input
supply range.
The output of the USB switch is current-limited.
The MPQ4475-E provides a USB-dedicated
charging port (DCP), which supports battery
charging specification 1.2 (BC1.2), divider
mode, and 1.2V/1.2V mode without the need for
outside user interaction. The output voltage has
programmable line drop compensation.
Full protection features include hiccup current
limiting, output over-voltage protection (OVP),
and thermal shutdown.
The MPQ4475-E requires a minimal number of
readily available, standard, external
components and is available in a QFN-25
(4mmx4mm) package.

FEATURES
 Hiccup Over-Current Mode for CR Load
 Wide 7V to 36V Operating Input Voltage
Range
 Fixed 5V Output Voltage with Line Drop
Compensation
 Accurate USB Output Current Limit
 40mΩ/32mΩ Low RDS(ON) Internal Buck
Power MOSFETs
 24mΩ Low RDS(ON) Internal USB Power
MOSFET
 350kHz / 250kHz / 120kHz Frequency
Selectable
 Frequency Dithering for 120kHz
 Programmable Line Drop Compensation
 Output Over-Voltage Protection (OVP)
 Hiccup Current Limit
 Supports DCP Scheme for BC1.2, Divider
Mode, and 1.2V/1.2V Mode
 ±8kV HBM ESD Rating for USB, DP, and
DM Pins
 Available in a QFN-25 (4mmx4mm)
Package
 Available in AEC-Q100 Grade 1

APPLICATIONS
 Automotive USB Smart Charging Ports