MPS MPQ2122 6v, 2a, low quiescent current dual, sync buck regulator Datasheet

MPQ2122
6V, 2A, Low Quiescent Current
Dual, SYNC Buck Regulator
The Future of Analog IC Technology
DESCRIPTION
FEATURES
The MPQ2122 is an internally-compensated,
1MHz fixed-frequency, dual PWM, synchronous,
step-down regulator. The MPQ2122 operates
from a 2.7V-to-6V input, generates an output
voltage as low as 0.608V, and has a 45µA
quiescent current that makes it ideal for
powering portable equipment that runs on a
single cell lithium-ion (Li+) battery.
The MPQ2122 integrates dual 80mΩ high-side
switches and 35mΩ synchronous rectifiers for
high efficiency without an external Schottky
diode. Peak-current mode control and internal
compensation limits the minimum number of
readily-available external components.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Fault-condition protections include cycle-by-cycle
current limiting and thermal shutdown.
APPLICATIONS
The MPQ2122 is available in an 8-pin TSOT23-8
package.
•
•
•
•
•
Dual 2A-Output Current
>93% Peak Efficiency
>80% Light-Load Efficiency
Wide 2.7V-to-6V Operating Input Range
80mΩ and 35mΩ Internal Power MOSFET
1MHz Fixed Switching Frequency
Adjustable Output from 0.608V to VIN
180° Phase-Shifted Operation
100% Duty-Cycle Operation
45µA Quiescent Current
Cycle-by-Cycle Over-Current Protection
Short-Circuit Protection with Hiccup Mode
Thermal Shutdown
Available in an 8-pin TSOT23-8 Package
Small/Handhold Devices
DVD Drivers
Portable Instruments
Smartphones and Feature Phones
Battery-Powered Devices
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.
TYPICAL APPLICATION
100
90
80
70
60
50
40
30
0.01
0.1
MPQ2122 Rev. 1.0
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10
1
MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
ORDERING INFORMATION
Part Number*
MPQ2122GJ
Package
TSOT23-8
Top Marking
See Below
* For Tape & Reel, add suffix –Z (e.g. MPQ2122GJ–Z).
TOP MARKING
AED: product code of MPQ2122GJ;
Y: year code;
PACKAGE REFERENCE
TOP VIEW
FB2
1
8
FB1
EN2
2
7
IN
SW2
3
6
SW1
EN1
4
5
GND
TSOT23-8
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
ABSOLUTE MAXIMUM RATINGS (1)
Thermal Resistance
Supply Voltage VIN.....................................6.5V
VSW–0.3V (-3V for<10ns) to 6.5V (7.5V for<10ns)
All Other Pins ............................ –0.3V to +6.5 V
Junction Temperature .............................. 150°C
Lead Temperature ................................... 260°C
(2)
Continuous Power Dissipation (TA = +25°C)
................................................................ 1.25W
TSOT23-8 ..................................... 100 ..... 55 °C/W
Recommended Operating Conditions
(3)
Supply Voltage VIN ............................ 2.7V to 6V
Output Voltage VOUT................... 0.608V to 5.5V
Operating Junction Temp. ........ -40°C to +125°C
(4)
θJA
θJC
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-toambient 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
regulator will go into thermal shutdown. Internal thermal
shutdown circuitry protects the device from permanent
damage.
3) The device is not guaranteed to function outside of its
operating conditions.
4) Measured on JESD51-7, 4-layer PCB.
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
ELECTRICAL CHARACTERISTICS (5)
VIN = VEN = 3.6V, TJ = -40ºC to + 125°C, unless otherwise noted. Typical values are at TJ=25ºC.
Parameters
Supply Current
(Quiescent)
Shutdown Current
IN Under-Voltage Lockout
Threshold
IN Under-Voltage Lockout
Hysteresis
Regulated FB Voltage
FB Input Current
EN, HIGH Threshold
EN, LOW Threshold
Internal Soft-Start Time
High-Side Switch, ONResistance
Low-Side Switch, ONResistance
Symbol Condition
VIN=3.6V,
TJ = +25°C
IQ
VEN=2V,
VFB = 0.65V TJ = -40°C to +125°C
VEN = 0V
TJ = +25°C
Rising edge
VFB
Max
35
45
55
30
45
60
0
1
μA
2.5
2.6
V
2.4
TA = +25°C
TJ = -40°C to +125°C
VFB = 0.608V
–40°C ≤ TJ ≤ +125°C
–40°C ≤ TJ ≤ +125°C
0.596
0.59
0.608
0.608
±10
Units
μA
mV
0.620
0.626
50
V
0.5
nA
V
V
ms
RDSON_P VIN=5V
80
mΩ
RDSON_N VIN=5V
35
mΩ
1.2
0.4
τSS
VEN = 0V;
VIN = 6V
VSW = 0V and 6V
High-Side Switch, Current
Limit
Sourcing, D=40%
TJ = +25°C
TJ = +25°C
TJ = -40°C to +125°C
Both channels work in CCM
Oscillator Frequency
Phase Shift
(6)
Typ
300
SW Leakage Current
Minimum ON Time
Minimum OFF Time
Maximum Duty Cycle
Thermal Shutdown
(6)
Threshold
Min
τON_MIN
τOFF_MIN
Hysteresis = 30°C
–1
0
1
2.8
2.3
0.8
3.5
3.5
1
180
4.5
4.5
1.2
μA
A
MHz
degree
90
100
100
ns
ns
%
160
°C
Notes:
5) Production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization.
6) Guarantee by design
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L = 1.5µH, COUT1=COUT2=22µF, TA = 25°C, unless otherwise
noted.
100
100
90
90
80
80
70
70
60
60
-0.1
50
50
-0.2
40
40
30
0.01
0.1
1
10
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
0 0.20.40.60.8 1 1.21.4 1.61.8 2 2.2
30
0.4
0.3
0.2
0.1
0
-0.3
-0.4
0.01
1
10
-0.5
0 0.20.4 0.6 0.8 1 1.2 1.41.6 1.8 2 2.2
80
615
70
610
60
605
50
600
40
595
30
590
-60 -40 -20
5
1.15
4.5
1.1
4
1.05
3.5
1
3
0.95
2.5
0.9
2
0.85
1.5
0 20 40 60 80 100
0.1
620
1.2
0.8
-60 -40 -20
0.5
1
-60 -40 -20
0 20 40 60 80 100
20
-60 -40 -20
0
20 40 60 80 100
30
25
20
15
10
5
0
20 40 60 80 100
0
0
0.5
1
1.5
MPQ2122 Rev. 1.0
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2.5
5
MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L = 1.5µH, COUT1=COUT2=22µF, TA = 25°C, unless otherwise
noted.
40
35
30
25
20
15
10
5
0
0
0.5
1
1.5
2
2.5
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L = 1.5µH, COUT1=COUT2=22µF, TA = 25°C, unless otherwise
noted.
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L = 1.5µH, COUT1=COUT2=22µF, TA = 25°C, unless otherwise
noted.
EN on without load
EN on with half load
EN on with full load
IOUT1 = IOUT2= 0A
IOUT1 = IOUT2= 1A
IOUT1 = IOUT2= 2A
VOUT1
1V/div.
VOUT1
1V/div.
VOUT1
1V/div.
VOUT2
1V/div.
VOUT2
1V/div.
VOUT2
1V/div.
EN
5V/div.
EN
5V/div.
EN
5V/div.
EN down without load
EN down with half load
EN down with full load
IOUT1 = IOUT2= 0A
IOUT1 = IOUT2= 1A
IOUT1 = IOUT2= 2A
VOUT1
1V/div.
VOUT1
1V/div.
VOUT1
1V/div.
VOUT2
1V/div.
VOUT2
1V/div.
VOUT2
1V/div.
EN
5V/div.
EN
5V/div.
EN
5V/div.
1s/div.
Vin Power On without Ioad
Vin Power On
Vin Power On
IOUT1 = IOUT2= 0A
IOUT1 =1A, IOUT2= 0A
IOUT1 = 2A, IOUT2= 0A
VOUT1
1V/div.
VOUT2
5V/div.
VOUT1
1V/div.
VOUT2
5V/div.
VOUT1
1V/div.
VOUT2
5V/div.
SW
2V/div.
SW
5V/div.
SW
5V/div.
IL1
500mA/div.
IL1
1A/div.
IL1
2A/div.
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L = 1.5µH, COUT1=COUT2=22µF, TA = 25°C, unless otherwise
noted.
Vin Power down
Vin Power down
Vin Power down
IOUT1 = IOUT2= 0A
IOUT1 = 1A, IOUT2= 0A
IOUT1 = 2A, IOUT2= 0A
VOUT1
1V/div.
VIN
5V/div.
SW
2V/div.
IL1
500mA/div.
VOUT1
1V/div.
VOUT1
1V/div.
VIN
5V/div.
SW
5V/div.
VIN
5V/div.
SW
5V/div.
IL1
1A/div.
IL1
2A/div.
40ms/div.
10ms/div.
10ms/div.
Enable on
Enable on
Enable on
IOUT1 = IOUT2= 0A
IOUT1 = 1A, IOUT2= 0A
IOUT1 = 2A, IOUT2= 0A
VOUT1
1V/div.
VOUT1
1V/div.
VOUT1
1V/div.
VIN
5V/div.
VIN
5V/div.
VIN
5V/div.
SW
5V/div.
SW
5V/div.
SW
5V/div.
IL1
500mA/div.
IL1
1A/div.
IL1
2A/div.
Enable down
Enable down
Enable down
IOUT1 = IOUT2= 0A
IOUT1 =1A, IOUT2= 0A
IOUT1 = 2A, IOUT2= 0A
VOUT1
1V/div.
VOUT1
1V/div.
VOUT1
1V/div.
VIN
5V/div.
VIN
5V/div.
VIN
5V/div.
SW
5V/div.
SW
5V/div.
SW
5V/div.
IL1
500mA/div.
IL1
1A/div.
IL1
2A/div.
1s/div.
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = 5V, VOUT1 = 1.8V, VOUT2 = 1.2V, L = 1.5µH, COUT1=COUT2=22µF, TA = 25°C, unless otherwise
noted.
VOUT1
AC Coupled
100mV/div.
VOUT2
AC Coupled
100mV/div.
VSW1
5V/div.
VSW2
5V/div.
IOUT1
1A/div.
IOUT2
1A/div.
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
PIN FUNCTIONS
Package
Pin #
Name
1
FB2
Feedback 2. Error amplifier input. Connect to the tap of an external resistor divider between
the output and GND. Sets the regulation voltage.
2
EN2
Channel 2 Enable. Buck.
3
SW2
Switch Node Connects to the channel 2 internal high-side and low-side power
MOSFETs..Connects to the inductor.
4
EN1
Channel 1 Enable. Buck.
5
GND
Ground.
6
SW1
Switch Node Connects to the channel 1 internal high-side and low-side power
MOSFETs..Connects to the inductor.
7
IN
8
FB1
Description
Input Supply. Requires a decoupling capacitor to ground to reduce switching spikes.
Feedback 1. Error amplifier input. Connect to the tap of an external resistor divider between
the output and GND. Sets the regulation voltage.
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
UVLO
VIN
UVLO &
Bandgap
MAIN
SWITCH
PCH
0.608V
INTERNAL SS
FB1
CONTROL
LOGIC
COMP1
0.608V
PWM
SW1
Hi-Z
ISLOPE1
EN1
PH1
Slope
Comp
SYNCHRONOUS
RECTIFIER
NCH
OSC1
LOW SIDE
GATE DRIVER
1MHz
OSCILLATOR
GND
PH2
EN2
VIN
Slope
Comp
OSC2
MAIN
SWITCH
PCH
ISLOPE2
INTERNAL SS
FB2
0.608V
COMP2
CONTROL
LOGIC
PWM
SW2
Hi-Z
SYNCHRONOUS
RECTIFIER
NCH
LOW SIDE
GATE DRIVER
GND
Figure 1: Functional Block Diagram
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
OPERATION
MPQ2122 is a fully-integrated, dual-channel,
synchronous, step-down converter. Both
channels have peak-current modes with internal
compensation for faster transient responses
and cycle-by-cycle current limits.
When either channel enters DCM or lowdropout operation, this channel will not be
controlled by the internal 1MHz oscillator.
Condition
CH1
CH2
MPQ2122 is optimized for low-voltage, portable
applications where efficiency and small size are
critical.
1
Heavy Load
180° Phase-Shift
2
Light Load
By default, the MPQ2122’s two channels
operate at a 180° phase-shift to reduce input
current ripple: The smaller current ripple allows
for a smaller input bypass capacitor. In CCM,
two internal clocks control the switching: The
high-side MOSFET turns on at the
corresponding CLK’s rising edge.
3
Low Dropout
4
5
6
7
8
CLK1
o
CLk1, 2 has a 180 phase shift
9
CLK2
Heavy
Load
Light
Load
Heavy
Load
Low
Dropout
Light
Load
Low
Dropout
Light
Load
Heavy
Load
Low
Dropout
Heavy
Load
Low
Dropout
Light
Load
Mode
CH1
1MHz
CCM
DCM
Fixed OFF
Time
0.95MHz
CCM
DCM
0.95MHz
CCM
Fixed OFF
Time
DCM
Fixed OFF
Time
CH2
1MHz
CCM,0°
Phase
DCM
Fixed OFF
Time
DCM
0.95MHz
CCM
Fixed OFF
Time
0.95MHz
CCM
Fixed OFF
Time
DCM
Soft Start
SW1
SW2
t
Figure 2: Clock/Switching Timing
However, the switching frequency for each
channel falls when operating at low dropout, so
the MPQ2122 operates at a default switching
frequency of 1MHz with a fixed OFF time. After
the input voltage recovers, switching for PWM
mode resumes normally and synchronizes with
the master oscillator for phase-shifted operation.
Light-Load Operation
In light loads, the MPQ2122 uses a proprietary
control scheme to save power and improve
efficiency. The MPQ2122 will turn off the low
side switch when inductor current starts to
reverse.
Then
MPQ2122
works
in
discontinuous
conduction
mode
(DCM)
operation.
MPQ2122 has a built-in soft start that ramps up
the output voltage at a controlled slew rate to
start-up overshoot. The soft-start time is ~0.5ms.
Current Limit and Short-Circuit Recovery
Each channel’s high-side switch has a 3.5A
(typ.) current limit. The MPQ2122 treats any
current-limit condition that remains for 400us as
a short and enter hiccup mode.
The MPQ2122 disables its output power stage
in hiccup mode, and then slowly discharges the
soft-start capacitor before initiating soft-start. If
the short-circuit condition remains, the
MPQ2122 repeats this operation till the short
circuit disappears and output returns to the
regulation level.
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
APPLICATION INFORMATION
The maximum inductor peak current is:
COMPONENT SELECTION
Output Voltage
External resistor dividers connected to the FB
pins set the output voltages. The feedback
resistor connected to FB1 (R1) also sets the
feedback loop bandwidth (fC).
fC does not exceed 0.1×fSW. When using a
ceramic output capacitor (CO), set the range to
50kHz and 100kHz for optimal transient
performance and good phase margin. When
using an electrolytic capacitor, set the loop
bandwidth no higher than 1/4 the ESR zero
frequency (fESR). fESR is:
fESR =
1
2π ⋅ RESR ⋅ CO
We suggest using a 600k to 800k resistor for R1
when CO=22μF. R2 is then:
R2 =
R1
VOUT
−1
0.608V
Table 1: Resistor Values vs. Output Voltage
VOUT
R1
R2
L
COUT
(Ceramic)
1.2V
806kΩ
825kΩ
0.47μH-2.2μH
22μF
1.5V
806kΩ
549kΩ
0.47μH-2.2μH
22μF
1.8V
806kΩ
412kΩ
0.47μH-2.2μH
22μF
2.5V
806kΩ
261kΩ
1μH-4.7μH
22μF
3.3V
806kΩ
182kΩ
1μH-4.7μH
22μF
Inductor Selection
Use a 1.5µH-to-2.2µH inductor with a DC current
rating of at least 1.25 times the maximum load
current for most applications. For best efficiency,
select an inductor with a DC resistance <20mΩ.
See Table 2 for recommended inductors. For
most designs, estimate the inductance value
using the following equation:
L=
VOUT (VIN − VOUT )
VIN ⋅ ΔIL ⋅ fOSC
Where ∆IL is the inductor ripple current. Select an
inductor ripple current equal to approximately
30% of the maximum load current, 2A.
IL(MAX) = ILOAD +
ΔIL
2
Table 2: Suggested Surface-Mount Inductors
Part
Number
Vendor
L
(μH)
DCR
(mΩ)
SC
(A)
LxWxH
3
(mm )
WURTH
744777002
2.2
13
6
7.3×7.3×4.5
744310200
2
14.2
6.5
7×6.9×3
8
6.5
7.8×6.8×3.2
TDK
RLF7030T1R5N6R1-T
1.5
Input Capacitor
The input capacitor reduces the surge current
drawn from the input and the switching noise
from the device. Select an input capacitor with a
switching-frequency impedance that is less than
the input source impedance to prevent highfrequency-switching current from passing to the
input source. Use low-ESR ceramic capacitors
with X5R or X7R dielectrics with small
temperature coefficients. For most applications, a
22µF capacitor is sufficient.
Output Capacitor
The output capacitor limits the output voltage
ripple and ensures a stable regulation loop.
Select an output capacitor with low impedance at
the switching frequency. Use ceramic capacitors
with X5R or X7R dielectrics. Using an electrolytic
capacitor may result in additional output voltage
ripple, thermal issues, and requires additional
care in selecting the feedback resistor (R1) due
to the large ESR. The output ripple (∆VOUT) is
approximately:
ΔVOUT =
⎞
VOUT (VIN − VOUT ) ⎛
1
⋅ ⎜ ESR +
⎟
VIN ⋅ fOSC ⋅ L
8 ⋅ fOSC ⋅ CO ⎠
⎝
Power Dissipation
IC power dissipation plays an important role in
circuit design—not only because of efficiency
concerns, but also because of the chip’s thermal
requirements. Several parameters influence
power dissipation, such as:
•
Conduction Loss (Cond)
•
Dead Time (DT)
MPQ2122 Rev. 1.0
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
•
Switching Loss (SW)
•
MOSFET Driver Current (DR)
•
Supply Current (S)
external feedback resistors next to the FB pin.
Keep the switching node SW short and away
from the feedback network. The circuit of below
PCB layout is shown in Figure 4.
AGND
Based on these parameters, we can estimate the
power loss as:
R4
PLOSS = PCond + PDT + PSW + PDR + PS
Thermal Regulation
As previously discussed, changes in IC
temperature change the electrical characteristics,
especially when the temperature exceeds the
IC’s recommended operating range. Managing
the IC’s temperature requires additional
considerations to ensure that the IC runs below
the maximum-allowable temperature. While
operating the IC within recommended electrical
limits is a major component to maintaining proper
thermal regulation, specific layout designs can
improve the thermal profile while limiting costs to
either efficiency or operating range.
For the MPQ2122, connect the ground pin on the
package to a GND plane on top of the PCB to
use this plane as a heat sink. Connect this GND
plane to GND planes beneath the IC using vias
to further improve heat dissipation. However,
given that these GND planes can introduce
unwanted EMI noise and occupy valuable PCB
space, design the size and shape of these planes
to match the thermal resistance requirement:
θSA = θJA − θJC
However, connecting the GND pin to a heat sink
can not guarantee that the IC will not exceed its
recommended temperature limits; for instance, if
the ambient temperature exceeds the IC’s
temperature limits. If the ambient air temperature
approaches the IC’s temperature limit, options
such as derating the IC so it operates using less
power can help prevent thermal damage and
unwanted electrical characteristics.
PCB Layout
Proper layout of the switching power supplies is
very important, and sometimes critical for proper
function: poor layout design can result in poor
line or load regulation and stability issues.
R2
R1
R3
EN2
SW2
VIN
1
8
2
7
3
6
4
5
C1A
C1B
SW1
EN1
C5
C3
OUT2
C6
GND
C4
OUT1
Figure 3: Suggested PCB Layout
Design Example
Below is a design example following the
application guidelines for the specifications:
Table 3: Design Example
VIN
5V
VOUT1
1.8V
VOUT2
1.2V
The detailed application schematic is shown in
Figure 1. The typical performance and circuit
waveforms have been shown in the Typical
Performance Characteristics section. For more
device applications, please refer to the related
Evaluation Board Datasheets.
Place the high-current paths (GND, IN and SW)
very close to the device with short, direct, and
wide traces. Place the input capacitor as close as
possible to the IN and GND pins. Place the
MPQ2122 Rev. 1.0
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3/2/2016
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
TYPICAL APPLICATION CIRCUITS
Figure 4: Typical Application Circuit
MPQ2122 Rev. 1.0
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3/2/2016
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MPQ2122 –6V, 2A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR
PACKAGE INFORMATION
TSOT23-8
See note 7
EXAMPLE
TOP MARK
PIN 1 ID
IAAAA
RECOMMENDED LAND PATTERN
TOP VIEW
SEATING PLANE
SEE DETAIL'' A''
FRONT VIEW
SIDE VIEW
NOTE:
DETAIL ''A''
1) ALL DIMENSIONS ARE IN MILLIMETERS
.
2) PACKAGE LENGTH DOES NOT INCLUDE MOLD
FLASH, PROTRUSION OR GATE BURR.
3) PACKAGE WIDTH DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
4) LEAD COPLANARITY(BOTTOM OF LEADS
AFTER FORMING) SHALL BE 0.10 MILLIMETERS
MAX.
5) JEDEC REFERENCE IS MO-193, VARIATION BA.
6) DRAWING IS NOT TO SCALE.
7) PIN 1 IS LOWER LEFT PIN WHEN READING TOP
MARK FROM LEFT TO RIGHT, (SEE EXAMPLE TOP
MARK)
NOTICE: The information in this document is subject to change without notice. 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.
MPQ2122 Rev. 1.0
www.MonolithicPower.com
3/2/2016
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2016 MPS. All Rights Reserved.
17
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