MP2030
3A Dual Supply
Very Low Dropout Linear Regulator
The Future of Analog IC Technology
DESCRIPTION
The MP2030 is a very low dropout, dual supply
linear regulator. The use of two supplies allows
the BIAS to control an NMOS device. The
NMOS device supplies power to the load via
the IN. In this way the input supply can be just
above the desired output, yet still provide very
good regulation performance due to the higher
bias supply. The BIAS operates from a 2.5V to
5.5V input and regulates the output voltage to
as low as 0.9V, and as high as 3.8V.
The MP2030 can supply up to 3A of load
current with a typical dropout voltage of 150mV.
The BIAS runs the internal reference and drive
circuitry, while the output current comes directly
from the IN for high efficiency regulation.
The low bias current of 220uA makes the
MP2030 ideal for use in battery-powered
applications. The BIAS can be directly applied
from the battery while IN is powered from the
high efficiency buck regulator. This will reduce
the output noise and decoupling capacitor.
Other features of MP2030 include thermal
overload and current limit protection, power
good indicator, stability with ultra low ESR
ceramic capacitors as low as 1uF, and fast
transient response. The MP2030 is available in
10-pin QFN (3mm x 3mm), and in QFN (5mm x
5mm) packages.
•
•
•
•
•
•
•
FEATURES
Wide 1.1V to 5.5V Input Voltage Range
Stable with Very Small Ceramic Capacitors
150mV Dropout at 3A Output
2% Accurate Output Voltage
Adjustable Output Range of 0.9V to 3.8V
Low Noise: 80µV
RMS
(10Hz to 100kHz)
PSRR
o
32dB at 100kHz
Better Than 0.001%/mA Load Regulation
Stable With Low-ESR Output Capacitors
Low 220uA Ground Current
Internal Thermal Protection
Current Limit Protection
0.1µA Typical Quiescent Current at
Shutdown
Power Good Indicator
Network, Telecom, Equipment:
and Switches
Servers, Storage Equipment
Set-Top Box
Post Regulation for Switch Mode
Televisions
Routers
•
•
•
•
•
•
•
•
•
•
•
•
APPLICATIONS
“MPS” and “The Future of Analog IC Technology” are Registered Trademarks of
Monolithic Power Systems, Inc.
TYPICAL APPLICATION
U1
VIN
1
IN
IN
BIAS
OUT
OUT
10
2
9
1.8V/3A
VOUT
GND
BIAS
3
MP2030
FB
EN
BP
8
PGOOD
GND
EN
4
PG
GND
7
C6
10nF
5
6
C8
1nF
MP2030 Rev. 0.91
10/10/2011
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
1
MP2030 – 3A VERY LOW DROPOUT LINEAR REGULATOR
ORDERING INFORMATION
Part Number*
MP2030DQ*
MP2030DU**
Package
3x3 QFN10
5x5 QFN32
Top Marking
7D
M2030DU
Free Air Temperature (T
A
)
–40°C to +85°C
–40°C to +85°C
*
For Tape & Reel, add suffix –Z (eg. MP2030DQ–Z).
For RoHS compliant packaging, add suffix –LF (eg. MP2030DQ–LF–Z)
** For Tape & Reel, add suffix –Z (eg. MP2030DU–Z).
For RoHS compliant packaging, add suffix –LF (eg. MP2030DU–LF–Z)
PACKAGE REFERENCE
TOP VIEW
N/C N/C N/C N/C N/C N/C N/C N/C
32
N/C
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
N/C
VOUT
VOUT
VOUT
VOUT
FB
EN
BYPASS
TOP VIEW
VIN
VIN
BIAS
PGOOD
GND
1
2
3
4
5
10
9
8
7
6
VOUT
VOUT
FB
EN
BYPASS
VIN
VIN
VIN
VIN
BIAS
PGOOD
GND
EXPOSED PAD
ON BACKSIDE
N/C N/C N/C N/C N/C N/C N/C N/C
EXPOSED PAD
ON BACKSIDE
3x3 QFN10
5x5 QFN32
(1)
ABSOLUTE MAXIMUM RATINGS
Recommended Operating Conditions
(2)
V
BIAS
, V
IN
to GND............................–0.3V to +6V
FB, EN, to GND ..............................–0.3V to 6V
V
OUT
...............................–0.3V to V
IN
+ 0.3 or 6V
PGOOD ..................... –0.3V to V
BIAS
+ 0.3 or 6V
BYPASS ......................-0.3V to V
BIAS
+0.3 or 6V
Junction Temperature ...............................150°C
Lead Temperature ....................................260°C
Storage Temperature ............. –65°C to +150°C
Input Voltage V
IN
............................. 1.1V to 5.5V
Input Voltage V
BIAS
.......................... 2.5V to 5.5V
Output Voltage................................ 0.9V to 3.6V
Load Current............................... 3.0A Maximum
Operating Junct. Temp. ...........–40°C to +125°C
Thermal Resistance
(3)
QFN10 3X3… ......................... 50……12
°C/W
QFN32 5X5… ......................... 36….…8
°C/W
Notes:
1) Exceeding these ratings may damage the device.
2) The device is not guaranteed to function outside of its
operating conditions.
3) Measured on JESD51-7, 4-layer PCB.
θ
JA
θ
JC
Power Dissipation
T
A
=70°C (QFN10 3 x 3) ............................ 1.3W
T
A
=70°C (QFN32 5 x 5) ............................. 1.8W
MP2030 Rev. 0.91
10/10/2011
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
2
MP2030 – 3A VERY LOW DROPOUT LINEAR REGULATOR
ELECTRICAL CHARACTERISTICS
V
IN
= 1.5V, V
BIAS
= 3.6V, V
OUT
= 1.2V, C
OUT
= 1µF, C
IN
= 0.1µF, T
A
= +25°C, unless otherwise noted.
Parameter
V
IN
Operating Voltage
V
BIAS
Operating Voltage
V
BIAS
Operating Current
FB Regulation Voltage
Dropout Voltage
V
IN
Line Regulation
V
BIAS
Line Regulation
Load Regulation
PSRR
(V
IN
)
Power Good Threshold
Power Good Delay
Soft Start
Power Good Voltage
EN Input High Voltage
EN Input Low Voltage
EN Input Bias Current
Thermal Protection
Thermal Protection Hysteresis
BYPASS=open
I
sink
=230μA
1.5
V
EN
= 1.2V
–1
135
15
0.8
+1
Symbol Condition
Min
1.1
2.5
0.490
0.485
Typ
Max
5.5
5.5
0.510
0.515
Units
V
V
μA
V
mV
mV
–40°C
≤
T
A
≤
+85°C
I
OUT
= 3A, V
BIAS
= 3.6V
I
OUT
= 1mA,
V
IN
= 1.5 to 5V
V
BIAS
= 3.6V V
OUT
= 1.2V
I
OUT
= 1mA,
V
BIAS
= 3.6V to 5.5V V
OUT
= 1.2V
V
IN
= 1.5V
I
OUT
= 1mA to 1A
V
IN
> V
OUT
+ 0.5V, C
OUT
= 22μF,
V
IN
(AC) = 100mV, f = 100KHz
I
OUT
= 300mA
220
0.500
0.500
150
1
2
0.001
32
440
160
550
0.39
mV
%/mA
dB
mV
μs
μs
V
V
V
μA
°C
°C
MP2030 Rev. 0.91
10/10/2011
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
3
MP2030 – 3A VERY LOW DROPOUT LINEAR REGULATOR
PIN FUNCTIONS
QFN3X3 10pins
Pin #
9, 10
3
8
7
5
1, 2
4
6
Name
OUT
BIAS
FB
EN
GND
IN
Description
Regulator Output. OUT is the output of the linear regulator, By pass OUT to GND with a
4.7µF or greater capacitor.
Bias Voltage. Bypass to ground with a 1uF or greater capacitor for maximum output
current the VIN>0.2V+VOUT and VBIAS>2V+VOUT.
Feedback Input. Connect a resistive voltage divider from OUT to FB to set the output
voltage. OUT feedback threshold is 0.5V.
Enable Input. Drive EN high to turn on the MP2030, drive EN low to turn it off. For
automatic startup, connect EN to IN.
Ground, exposed pad.
Power Source Input. IN supplies power to the load at the output (through the power
transistor). Bypass IN to GND with a 1µF or greater capacitor.
PGOOD Open drain output. High indicated V
OUT
>
90%
final value.
BYPASS Connect a 1nF to this pin. Do not load this pin resistively.
QFN5x5 32pins
Pin #
20, 21,22,
23
6
19
18
8
2, 3, 4, 5
7
17
1, 9, 10,
11, 12,
13, 14,
15, 16,
24, 25,
26, 27,
28, 29,
30, 31, 32
Description
Regulator Output. OUT is the output of the linear regulator, By pass OUT to GND with a
VOUT
4.7µF or greater capacitor.
BIAS
Bias Voltage. Bypass to ground with a 1uF or greater capacitor.
Feedback Input. Connect a resistive voltage divider from OUT to FB to set the output
FB
voltage. OUT feedback threshold is 0.5V.
Enable Input. Drive EN high to turn on the MP2030, drive EN low to turn it off. For
EN
automatic startup, connect EN to IN.
GND
Ground, exposed pad.
Power Source Input. IN supplies power to the load at the output (through the power
VIN
transistor). Bypass IN to GND with a 1µF or greater capacitor.
PGOOD Open drain output. High indicated V
OUT
>
90%
final value.
BYPASS Connect a 1nF to this pin. Do not load this pin resistively.
Name
NC
These are no connection pins.
MP2030 Rev. 0.91
10/10/2011
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
4
MP2030 – 3A VERY LOW DROPOUT LINEAR REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
C1=10μF, C2=0.1μF, C3=1.0μF, C4=22μF, C6=22nF, V
B
=5.5V, T
A
=25ºC, unless otherwise noted
.
Load Regulation
Voltage Dropped
Line Regulation
200
VOLTAGE DROPPED ( mV )
V
B
=5V
V
OUT
=1.2V
V
OUT
( V )
1.230
1.226
1.222
0A
1.2A
0.4A
1.25
1.24
V
OUT
( V )
150
100
50
0
0.0
0.8
1.6
2.4
3.2
4.0
LOAD CURRENT ( A )
1.23
1.22
1.21
V
I N
=1.5V
1.218
1.214
1.210
1.5 2.0 2.5 3.0 3.5 4.0 4.5
V IN ( V )
V
I N
=1.8V
1.20
0.0 0.6 1.2 1.8 2.4 3.0 3.6
I OUT (A)
PSRR vs. Frequency
90
80
70
60
50
40
30
V =1.5V
IN
20
V
OUT
=1.2V
10
I
OUT
=0.3A
0
0.01 0.1 1
1.820
1.816
Line Regulation
1.820
1.816
1.2A
Load Regulation
V
I N
=2.1V
V
OUT
( V )
PSRR ( dB )
V
OUT
( V )
1.812
1.808
1.804
1.800
2.0
0A
0.4A
1.812
V
I N
=2.5V
1.808
1.804
10
100 1000
2.5
3.0
3.5
4.0
4.5
1.800
0.0 0.6 1.2 1.8 2.4 3.0 3.6
I OUT (A)
FRE QUE NCY ( KHz )
V IN ( V )
Case Temperature vs. P
D
MP2030DU
Line Regulation
2.52
2.520
2.516
1.2A
Load Regulation
80
70
60
50
40
30
20
0.5
1.0
1.5
2.0
2.5
3.0
V
OUT
=1.2V
V
B
=5V
2.52
V
OUT
( V )
V
OUT
( V )
V
I N
=2.8V
2.51
2.51
2.50
2.50
2.5
0.4A
2.512
V
I N
=3.3V
0A
2.508
2.504
2.9
3.3
3.7
4.1
4.5
2.500
0.0 0.5 1.0 1.5 2.0 2.5 3.0
I OUT (A)
PD ( W )
V IN ( V )
MP2030 Rev. 0.91
10/10/2011
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2011 MPS. All Rights Reserved.
5
京公网安备 11010802033920号
EEWORLD
