MPS CONFIDENTIAL AND PROPRIETARY / NO COPIES OR DISTRIBUTION WITHOUT MPS PERMISSION
The Future of Analog IC Technology
36V, 6A, Step-Down Converter with
Programmable Frequency and
Spread Spectrum Option, Dual USB Charging Ports
Supporting EN, Fault Indication, and
Type-C 5V@ 3A DFP Mode
for Automotive, AEC-Q100 Qualified
MPQ4487
DESCRIPTION
The MPQ4487 integrates a monolithic, step-
down, switch-mode converter with two USB
current-limit switches and Type-C 5V @ 3A
mode configuration channels for each port. The
MPQ4487 achieves 6A of output current with
excellent load and line regulation over a wide
input supply range.
The output of each USB switch is current-
limited. Both USB ports support USB Type-C
5V @ 3A DFP mode, eliminating the need for
outside user interaction.
Full protection features include hiccup current
limiting, output over-voltage protection (OVP),
and thermal shutdown.
The MPQ4487 requires a minimal number of
readily
available,
standard,
external
components and is available in a QFN-26
(5mmx5mm) package.
FEATURES
Wide 6V to 36V Operating Input Voltage
Range
Selectable Output Voltage
Line Drop Compensation
Accurate USB1/USB2 Output Current Limit
18mΩ/15mΩ Low R
DS(ON)
Internal Buck
Power MOSFETs
18mΩ/18mΩ
Low
R
DS(ON)
Internal
USB1/USB2 Power MOSFETs
Frequency Adjustable (250kHz to 2.2MHz)
Frequency
Spread
Spectrum
for
MPQ4487GU-FD-AEC1
Forced Continuous Conduction Mode (CCM)
Operation
Load Shedding Versus Temperature
Hiccup Current Limit for both Buck and USB
EN Control for USB1 and USB2
Fault Indication for USB1 and USB2
Supports USB Type-C 5V @ 3A Mode
±8kV HBM ESD Rating for USB1 and USB2
Available in a QFN-26 (5mmx5mm)
Package
Available in AEC-Q100 Grade 1
USB Hubs
USB Type-C Charging Ports
Applications
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.
MPQ4487 Rev.1.0
10/17/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
1
MPS CONFIDENTIAL AND PROPRIETARY / NO COPIES OR DISTRIBUTION WITHOUT MPS PERMISSION
MPQ4487 – STEP-DOWN CONVERTER WITH DUAL USB CHARGING PORTS, AEC-Q100
TYPICAL APPLICATION
100
96
92
88
84
80
0
1
2
3
4
5
6
7
MPQ4487 Rev.1.0
10/17/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
2
MPS CONFIDENTIAL AND PROPRIETARY / NO COPIES OR DISTRIBUTION WITHOUT MPS PERMISSION
MPQ4487 – STEP-DOWN CONVERTER WITH DUAL USB CHARGING PORTS, AEC-Q100
ORDERING INFORMATION
Part Number*
MPQ4487GU-AEC1
MPQ4487GU-FD-AEC1
Package
QFN-26 (5mmx5mm)
Top Marking
See Below
* For Tape & Reel, add suffix –Z (e.g. MPQ4487GU-AEC1–Z, MPQ4487GU-FD-AEC1–Z)
DEVICE COMPARISON INFORMATION
Part Number
MPQ4487GU-AEC1
MPQ4487GU-FD-AEC1
Frequency Spread Spectrum
No
Yes
TOP MARKING
MPS: MPS prefix
YY: Year code
WW: Week code
MP4487: Part number
LLLLLLL: Lot number
PACKAGE REFERENCE
TOP VIEW
QFN-26 (5mmx5mm)
MPQ4487 Rev.1.0
10/17/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
3
MPS CONFIDENTIAL AND PROPRIETARY / NO COPIES OR DISTRIBUTION WITHOUT MPS PERMISSION
MPQ4487 – STEP-DOWN CONVERTER WITH DUAL USB CHARGING PORTS, AEC-Q100
ABSOLUTE MAXIMUM RATINGS
(1)
Thermal Resistance
Supply voltage (V
IN
) ......................-0.4V to +40V
V
SW
.................................... -0.3V (-5V for <10ns)
to V
IN
+ 0.3V (43V for <10ns)
V
BST
................................................... V
SW
+ 5.5V
(2)
V
EN
........................................... -0.3V to +10V
V
OUT
, V
USB
.....................................-0.3V to +6.5V
All other pins ................................-0.3V to +5.5V
(3)
Continuous power dissipation (T
A
= +25°C)
QFN-26 (5mmx5mm) ............................... 6.25W
Junction temperature ................................150°C
Lead temperature .....................................260°C
Storage temperature ................ -65°C to +150°C
QFN-26 (5mmx5mm)
(5)
JESD51-7 .......................... 44 ........ 9 .... °C/W
50mmx50mm 4-Layer PCB ... 20 ........ 2 .... °C/W
NOTES:
1) Absolute maximum ratings are rated under room temperature
unless otherwise noted. Exceeding these ratings may
damage the device.
2) For details on EN’s ABS max rating, please refer to the EN
Control section on page 13.
3) The maximum allowable power dissipation is a function of the
maximum junction temperature T
J
(MAX), the junction-to-
ambient thermal resistance
θ
JA
, and the ambient temperature
T
A
. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by P
D
(MAX) = (T
J
(MAX)-T
A
)/θ
JA
. Exceeding the maximum allowable power
dissipation produces an excessive die temperature, causing
the regulator to go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage. Measured on a 4-layer PCB (50mmx50mm).
4) The device is not guaranteed to function outside of its
operating conditions.
5) Measured on JESD51-7, 4-layer PCB.
θ
JA
θ
JC
Recommended Operating Conditions
(4)
Operation input voltage range ............ 6V to 36V
Output current ........... 3A for USB1, 3A for USB2
Operating junction temp. (T
J
) ... -40°C to +125°C
MPQ4487 Rev.1.0
10/17/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
4
MPS CONFIDENTIAL AND PROPRIETARY / NO COPIES OR DISTRIBUTION WITHOUT MPS PERMISSION
MPQ4487 – STEP-DOWN CONVERTER WITH DUAL USB CHARGING PORTS, AEC-Q100
ELECTRICAL CHARACTERISTICS
V
IN
= 12V, V
EN
= 5V, CC1 to ground with a 5.1kΩ resistor, CC3 to ground with a 5.1kΩ resistor, T
J
= -40°C to +125°C
(6)
, typical value is tested at T
J
= +25°C, unless otherwise noted.
Parameter
Supply current (shutdown)
Supply current (quiescent)
EN rising threshold
EN hysteresis
EN pull-down resistor
Thermal shutdown
(7)
Thermal hysteresis
(7)
Symbol
I
IN
I
Q1
I
Q2
V
EN Rising
V
EN HYS
R
EN
T
TSD
T
TSD_HYS
V
CC
V
CC
LOG
Condition
V
EN
= 0V
No switching
CC floating, no switching,
T
J
= +25°C
Min
Typ
3
1
400
Max
10
2
550
+3%
Units
μA
mA
μA
V
mV
MΩ
C
C
V
%
V
mV
-3%
1.235
230
2
165
20
VCC regulator
VCC load regulation
Step-Down Converter
V
IN
under-voltage lockout
threshold rising
V
IN
under-voltage lockout
threshold hysteresis
HS switch on resistance
LS switch on resistance
4.3
I
CC
= 50mA
4.6
4.6
1
5.0
700
18
15
5.10
5.17
5.17
5.30
5.85
5.7
160
-2
4.9
3
5.4
V
IN_UVLO
V
UVLO_HYS
R
DSON
R
DSON
HS
LS
Output voltage
V
OUT
OUT_SEL = low
OUT_SEL = float, T
J
= +25°C
OUT_SEL = float, T
J
= -40°C
to +125°C
OUT_SEL = high
-2%
-1%
-2%
-2%
5.45
40
30
+2%
+1%
+2%
+2%
6.25
6.1
220
1
mΩ
mΩ
V
Output over-voltage
protection
Output OVP recovery
Output to ground resistance
Low-side current limit
Switch leakage
High-side current limit
V
OVP_R
V
OVP F
R
FB
I
LS LIMIT
SW
LKG
I
LIMIT
F
SW1
F
SW2
F
SW3
F
SW4
EN = 0V, T
J
= +25°C
V
EN
= 0V, V
SW
= 36V,
T
J
= +25°C
V
EN
= 0V, V
SW
= 36V,
T
J
= -40°C to +125°C
V
OUT
= 0V
Pull R
FREQ
to GND
R
FREQ
= 66.5kΩ
R
FREQ
= 9.53kΩ, refer to
application note
R
FREQ
= float
R
FREQ
= float, based on
450kHz
V
V
kΩ
A
μA
5.3
100
5
8
185
250
1800
360
12
250
350
2200
450
±10
16
315
450
2600
540
%
A
Oscillator frequency
kHz
Frequency spread
spectrum span
(MPQ4487GU-FD-AEC1)
F
SS
MPQ4487 Rev.1.0
10/17/2017
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
