EVQ4488-U-00B
Smart, Dual USB Charging Port Power
Converter with Programmable Frequency
for Automotive, AEC-Q100 Qualified
EVQ4488-U-00B Rev. 1.0
www.MonolithicPower.com
1
9/12/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EVQ4488-U-00B Evaluation Board is
designed to demonstrate the capabilities of
MPS’ MPQ4488.The MPQ4488 integrates a
monolithic step-down switch-mode converter
with two USB current-limit switches and
charging port identification circuitry for each
port. It achieves 6A output current over a wide
input-supply range with excellent load and line
regulation.
The output of the USB switch is current limited.
Both USB ports support DCP schemes for
Battery Charging specification (BC1.2), the
Divider Mode, 1.2V/1.2V Mode and USB TYPE-
C 5V@3A DFP Mode eliminating outside user
interaction.
ELECTRICAL SPECIFICATION
Parameter Symbol
Value
Units
Operating Input
Voltage
V
IN
12
V
Switching
Frequency
Fs 450
kHz
Output Voltage
V
USB1
/V
USB2
5.17 V
Output Current
USB1_ I
OUT
3
A
USB2_ I
OUT
3 A
FEATURES
Wide 6V to 36V Operating Input-Voltage
Range
Selectable Output Voltage: 5.1V, 5.17V and
5.3V
90mV Line Drop Compensation
Accurate USB1/USB2 Output-Current Limit
18m
Ω
/15m
Ω
Low R
DS(ON)
Internal Buck
Power MOSFETs
18m
Ω
/18m
Ω
Low R
DS(ON)
Internal
USB1/USB2 Power MOSFETs
Load Shedding versus Temperature
Hiccup Current Limit for both Buck and USB
Supports DCP schemes for BC1.2, Divider
Mode, and 1.2V/1.2V Mode
Supports USB TYPE-C 5V@3A Mode
APPLICATIONS
USB Dedicated Charging Ports (DCP)
USB Type-C Charging Port
All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For
MPS green status, please visit MPS website under Quality Assurance.
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks
of Monolithic Power Systems, Inc.
EVQ4488-U-00B EVALUATION BOARD
(L x W x H) 5cm x 5cm x 1.7cm
(Four Layer PCB/2oz per layer)
Board Number
MPS IC Number
EVQ4488-U-00B MPQ4488
80
84
88
92
96
100
0
1
2
3
4
5
6
7
