MPQ5073GG-AEC1 [MPS]
5.5V, 2A Low RDSON Load Switch with Programmable Current Limit AEC-Q100 Qualified;
| 型号： | MPQ5073GG-AEC1 |
| 厂家： | 
MONOLITHIC POWER SYSTEMS |
| 描述： | 5.5V, 2A Low RDSON Load Switch with Programmable Current Limit AEC-Q100 Qualified |
| 文件： | 总13页 (文件大小：1842K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MPQ5073
5.5V, 2A Low RDSON Load Switch
with Programmable Current Limit
AEC-Q100 Qualified
DESCRIPTION
FEATURES
The MPQ5073 is a load switch to provide 2A
load protection covering 0.5V to 5.5V voltage
range. With the small RDSON in tiny packages,
MPQ5073 provides very high efficient and
space saving solution in notebook and tablet or
other portable devices application.
Guaranteed Industrial/Automotive Temp
Range Limits
Large VIN Range from 0.5V to 5.5V
<5µA Shutdown Current
Integrated 50mΩ Low RDSON FETs
Typical 2A Load Current Range
Push Pull PG Indicator
Adjustable Start Up Slew Rate
Output discharge function
<200ns Short-Circuitry Response Protection
Thermal Protection
Small QFN-12 (2mmx2mm) Package for
Space Saving
With the soft start function, the MPQ5073 can
avoid inrush current during circuit start up.
MPQ5073 also provides programmable soft
start time, output discharge functions, OCP and
thermal shutdown features.
The max load at the output (source) is current
limited. This is accomplished by utilizing a
sense FET topology.
Available in AEC-Q100 Qualified Grade
The magnitude of the current limit is controlled
by an external resistor from the ILIM pin to
ground.
APPLICATIONS
Notebook and Tablet Computers
Portable Devices
Solid State Drivers
Handheld Devices
An internal charge pump drives the gate of the
power device, allowing a very low on-resistance
DMOS power FET of just 50mΩ.
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.
Tiny QFN-12 (2mmx2mm) of MPQ5073 is
available in space saving package.
TYPICAL APPLICATION
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
1
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
ORDERING INFORMATION
Part Number*
MPQ5073GG
MPQ5073GG-AEC1
Package
Top Marking
QFN-12 (2mmx2mm)
See Below
* For Tape & Reel, add suffix –Z (e.g. MPQ5073GG–Z);
TOP MARKING
CB: product code of MPQ5073GG & MPQ5073GG-AEC1;
Y: year code;
LLL: lot number;
PACKAGE REFERENCE
QFN-12 (2mmx2mm)
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance (4)
QFN-12 (2mmx2mm) ……....…80 16 °C/W
θJA θJC
VIN.............................................. –0.3V to +6.5V
VCC............................................. –0.3V to +6.5V
VOUT ........................................... –0.3V to +6.5V
EN, SS, ILIM........................–0.3V to Vcc+0.3 V
Junction Temperature..............................150°C
Lead Temperature ...................................260°C
Notes:
1) Exceeding these ratings may damage the device.
2) The maximum allowable power dissipation is a function of the
maximum junction temperature TJ (MAX), the junction-to-
ambient thermal resistance θJA, and the ambient temperature
TA. The maximum allowable continuous power dissipation at
any ambient temperature is calculated by PD (MAX) = (TJ
(MAX)-TA)/θJA. Exceeding the maximum allowable power
dissipation will cause excessive die temperature, and the
device will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
(2)
Continuous Power Dissipation
QFN-12 (2mmx2mm).................................1.6W
Recommended Operating Conditions (3)
Supply Voltage VIN ......................... 0.5V to 5.5V
Supply Voltage VCC ........................... 3V to 5.5V
Output Voltage VOUT....................... 0.5V to 5.5V
Operating Junction Temp ........-40°C to +125°C
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
2
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
ELECTRICAL CHARACTERISTICS
VIN = 3.6V, VCC = 3.6V, TJ =-40ºC to +125°C, typical values are TJ = 25°C, unless otherwise noted.
Parameters
Symbol Condition
Min
Typ
Max
Units
Input and Supply Voltage Range
Input Voltage
Supply Voltage
VIN
VCC
0.5
3
5.5
5.5
V
V
Supply Current
VIN=5V, EN=0, TJ = 25°C
1
µA
µA
Off State Leakage Current
VCC Standby Current
IOFF
VIN=5V, EN=0,
-40°C < TJ<125°C
VCC=5V, EN=0
5
1
0.1
µA
VCC=5V, Enable, No Load
TJ = 25°C
180
230
ISTBY
VCC =5V, Enable, No Load,
-40°C < TJ<125°C
180
250
Power FET
VCC =5.0V, TJ=25°C
VCC =5.0V, -40°C <TJ<125°C
VCC =3.3V, TJ=25°C
50
50
60
60
70
80
80
90
ON Resistance
RDSON
mΩ
VCC =3.3V, -40°C <TJ<125°C
Thermal Shutdown and Recovery (5)
Shutdown Temperature
Hysteresis
TSTD
THYS
150
30
°C
°C
Under Voltage Protection
VCC Under Voltage Lockout Threshold
UVLO Hysteresis
VCC_UVLO UVLO Rising Threshold
VUVLO_HYS
2.6
200
2.95
V
mV
Soft Start
SS pull-up Current
Enable
ISS
Fixed Slew Rate
4
11
17
µA
EN Rising Threshold
EN Hysteresis
ILIM
VENH
VEN_hys
1.3
1.5
200
1.7
V
mV
RLIM=24kΩ. Ramp IOUT Record
Peak Current Limit Value
Current Limit
IOUT
1.4
200
280
A
Ω
Discharge Resistance
Discharge Resistance
PG
RDIS
Voltage Gap between VOUT
and VIN
Power Good Rising Threshold
VPG_R
140
3.2
450
0.3
mV
Power Good Threshold
Power Good Delay
Power Good High
Power Good Low
VPG
_
60
50
mV
µs
V
HYS
TPG_D
VPG_H
VPG_L
VCC=3.3V
Sink 1mA
V
Notes:
5) Guarantee by design.
MPQ5073 Rev. 1.01
www.MonolithicPower.com
3
10/26/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
PIN FUNCTIONS
QFN-12
(2mmx2mm) Name Description
Pin #
1
2
3
EN
Enable Input. Pulling this pin below the specified threshold shuts the chip down.
GND Ground.
VCC Supply Voltage to the Control Circuitry.
Output Current Limit Configure. Place a resistor to ground to set the overload current
limit level.
4
5
ILIM
Soft Start Pin. An external capacitor connected to this pin sets the slew rate of the
output voltage soft start period.
SS
6, 11,
Exposed pad
VIN Input Power Supply.
9
VOUT Output to the Load.
12
PG Power Good Pin. Push-Pull output.
7,8,10
NC NC Pin, Suggest connecting them with VOUT to improve the thermal performance.
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
4
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 3.6V, VCC = 3.6V, RILIM = 13kΩ, TA = 25°C, unless otherwise noted.
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
5
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 3.6V, VCC = 3.6V, RILIM = 13kΩ, TA = 25°C, unless otherwise noted.
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
6
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 3.6V, VCC = 3.6V, EN=4V, RILIM = 13kΩ, TA = 25°C, unless otherwise noted.
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
7
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 3.6V, VCC = 3.6V, EN=4V, RILIM = 13kΩ, TA = 25°C, unless otherwise noted.
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
8
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
OPERATION
The MPQ5073 is designed to limit the in-rush
current to the load when a circuit card is
inserted into a live backplane power source;
thereby limiting the backplane’s voltage drop
and the slew rate of the voltage to the load. It
provides an integrated solution to monitor the
input voltage, output voltage and output current
to eliminate the need for an external current
power MOSFET, and current sense device.
than 280mV, the PG pin is pulled high after a
50µs delay. When the voltage gap is higher
than 340mV, the PG pin will be pulled low.
Short-Circuit Protection
If the load current increases rapidly due to a
short circuit, the current may exceed the current
limit threshold by a lot before the control loop
can respond. If the current reaches an internal
secondary current limit level (about 7A), a fast
turn-off circuit activates to turn off the power
FET. This limits the peak current through the
switch to limit the input voltage drop. The total
short circuit response time is about 200ns. If
fast off works, it will keep off the power FET for
80µs. After that time period, it will re-turn on
power FET, if the part is still in short-circuit
condition. MPQ5073 will reduce the current limit,
and hold it until the part is so hot and thermal
shutdown. After the short-circuit condition
removed, the current limit will recover to the
pre-set value automatically.
Enable
When input voltage is greater than the under-
voltage lockout threshold (UVLO), typically 0.5V,
MPQ5073 can be enabled by pulling EN pin to
higher than 1.5V. Pulling down to ground will
disable MPQ5073.
Current Limit
The MPQ5073 provides a constant current limit
that can be programmed by an external resistor.
Once the device reaches its current limit
threshold, the internal circuit regulates the gate
voltage to hold the current in the power FET
constant. The typical response time is about
20µs and the output current may have a small
overshoot during this time period.
Output Discharge
MPQ5073 has output discharge function. This
function can discharge the Vo by internal pull
down resistance when IC disabled and the load
is very light.
The pre-set current limit value can be
calculated by below equation:
Soft-Start
ILimit = (1÷RILIM )×S
(1)
A capacitor connected to the SS pin determines
the soft-start time. There is an internal 11µA
constant current source charge SS cap and
ramps up the voltage on the SS pin. The output
voltage rises at 5 times the slew rate to the SS
voltage.
S is the current sense ratio of MPQ5073, and
this value is typically 33000 in VIN=3.6V.
If the current limit block starts to regulate the
output current, the power loss on power
MOSFET will cause the IC temperature rise. If
the junction temperature rose to high enough, it
will trigger thermal shutdown. After thermal
shutdown happened, it will disable the output
until the over temperature fault remove. The
over temperature threshold is 150°C and
hysteresis is 30°C.
The soft-start time can be calculated by below
equation:
V
OUT (V)CSS (nF)
1
TSS (ms)
5
(2)
ISS (uA)
TSS is the soft-start time, ISS is internal 11µA
constant current, CSS is external soft-start cap.
Power-Good Function
The PG pin is the push pull of a MOSFET that
can be pulled high to VCC. The MOSFET turns
on with the application of an input voltage so
that the PG pin is pulled to GND. After the
voltage gap between VIN and VOUT is smaller
The suggestion minimum SS cap should be
bigger than 4.7nF. If the SS pin is floated or SS
cap is too small, the VOUT rising time will be just
limited by power MOS charge time.
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
9
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
Figure 1: Functional Block Diagram
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
10
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
APPLICATION INFORMATION
ILIM Resistor Selection
Component Selection
The current limit value can be set by ILIM
resistor. The current limit can be gotten by
equation (1).
Soft Start @ Different Load
VOUT
The current limit threshold is suggested to 10%
~ 20% higher than maximum load current. For
example, if the system’s full load is 2A, set the
current limit to 2.2A.
Current Limit
Current Limit
Current Limit
IIN
ILIM Capacitor Selection
Soft Start @ No Load
The internal advanced auto-zero comparator
bring a high accuracy of current monitor. The
auto-zero will also cause some little jitter on
ILIM pin. To get a more stable ILIM, a small
ceramic capacitor can be mounted between
ILIM and ground. Suggested place an ILIM
capacitor less than 1nF.
VOUT
IIN
Soft Start Capacitor Selection
Soft Start @ Half Load
There is an internal 11µA constant current
source charge SS cap and ramps up the
voltage on the SS pin. The output voltage rises
follow the slew rate of SS voltage.
VOUT
If the inrush on output current reached the
current limit during start up (like with large
output cap or very large load), MPQ5073 will
limit the output current and the same time, SS
time will be increased (Fig 2 and Fig 3).
IIN
Soft Start @ Very large Load
Figure 2: Soft Start Periods at different load
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
11
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
Soft Start @ Different Output Capacitance
VOUT
Current Limit
Current Limit
Current Limit
IIN
Soft Start @ Small Capacitance
Figure 4: Typical Application Schematic
Layout Guide
PCB layout is very important to achieve stable
operation. Please follow these guidelines and
take below figure for reference. Place RILIM
close to ILIM pin, input cap close to VCC pin. Put
enough vias around IC to achieve better
thermal performance.
VOUT
IIN
Soft Start @ Large Capacitance
VOUT
IIN
Soft Start @ Very large
Capacitance
Figure 3: Soft Start Periods at different
output capacitance
Design Example
Some design example and are provided below.
See Table 1 and Figure 4.
Figure 5: Recommended Layout
Table 1
VIN Max Load Range Rlimit SS cap SS time
(V)
3.6
3.6
3.6
(A)
0.5
1
(kΩ)
47
27.4
15
(nF)
22
47
100
(ms)
1
2.4
5.4
2
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
12
MPQ5073 – 5.5V, 2A LOW RDSON LOAD SWITCH WITH PROGRAMMABLE CURRENT LIMIT, AEC-Q100 QUALIFIED
PACKAGE INFORMATION
QFN-12 (2mmx2mm)
PIN 1 ID
MARKING
PIN 1 ID
SEE DETAIL A
PIN 1 ID
INDEX AREA
TOP VIEW
BOTTOM VIEW
PIN 1 ID OPTION B
R0.20 TYP.
PIN 1 ID OPTION A
0.20x45° TYP.
SIDE VIEW
DETAIL A
NOTE:
1) ALL DIMENSIONS ARE IN MILLIMETERS.
2) EXPOSED PADDLE SIZE DOES NOT
INCLUDE MOLD FLASH.
3) LEAD COPLANARITY SHALL BE 0.10
MILLIMETERS MAX.
4) JEDEC REFERENCE IS MO-229.
5) DRAWING IS NOT TO SCALE.
RECOMMENDED LAND PATTERN
NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
MPQ5073 Rev. 1.01
10/26/2016
www.MonolithicPower.com
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
13
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