MPS EVQ4488-U-00B Manual

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
Operating Input
Voltage
Switching
Frequency
Output Voltage V
USB1
USB1_ I
Output Current
USB2_ I
EVQ4488-U-00B EVALUATION BOARD
(L x W x H) 5cm x 5cm x 1.7cm
(Four Layer PCB/2oz per layer)
Board Number
EVQ4488-U-00B
EVQ4488-U-00B Rev. 1.0
9/12/2017 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
Value Units
V 12 V
IN
Fs 450 kHz
/V 5.17 V
USB2
3 A
OUT
3 A
OUT
MPS IC Number
MPQ4488
www.MonolithicPower.com
© 2017 MPS. All Rights Reserved.
EVQ4488-U-00B
Smart, Dual USB Charging Port Power
Converter with Programmable Frequency
for Automotive, AEC-Q100 Qualified
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

18mΩ/15mΩ Low R
Power MOSFETs

18mΩ/18mΩ
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.
100
96
92
88
84
80
0
Internal Buck
DS(ON)
Low R
DS(ON)
1 2 3 4 5 6
Internal
7
1