SGM66055 [SGMICRO]
2.2MHz, Fixed Output Synchronous Tiny Boost Converter with a 4A Switch;
| 型号： | SGM66055 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 2.2MHz, Fixed Output Synchronous Tiny Boost Converter with a 4A Switch |
| 文件： | 总14页 (文件大小：931K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM66055
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
GENERAL DESCRIPTION
FEATURES
The SGM66055 is an internally compensated, 2.2MHz
switching frequency, peak current mode, synchronous
Boost switching converter. Even below the minimum
system battery voltage, the device maintains the output
voltage regulation for a minimum output load current of
0.9A. This device turns into power-saving mode to
maintain high efficiency by lowering switching frequency.
With its anti-ringing circuitry damping the charge in
parasitic capacitor, it reduces EMI interference
significantly. Its output is disconnected by the rectifier
circuit during shutdown with no input to output leakage.
● Operating Input Voltage Range: 2.5V to 4.5V
● Fixed Output Voltages: 4.5V and 5.0V
● Output Voltage Clamping: 5.7V
● Up to 93% Efficieny
● Quiescent Current: 23µA (TYP)
● Shutdown Current: 1µA (MAX)
● Improved Light Load Efficiency with Power-Save
Mode (PSM)
● Load Disconnect During Shutdown
● Low Reverse Leakage Current when VOUT > VIN
● Thermal Shutdown
● -40℃ to +85℃ Operating Temperature Range
● Available in Green WLCSP-1.21×1.21-9B and
TDFN-2×3-8BL Packages
The SGM66055-4.5 is available in the Green WLCSP-
1.21×1.21-9B package; the SGM66055-5.0 is available
in the Green WLCSP-1.21×1.21-9B and TDFN-2×3-8BL
packages.
APPLICATIONS
USB OTG
Class-D Audio Amplifier
Smart Phones and Tablets
Portable and Wearable Devices
TYPICAL APPLICATION
L
0.47μH
VIN
2.5V to 4.5V
CIN
SW
VOUT
4.5V/5.0V
10μF
VIN
VOUT
SGM66055
ON
COUT
22μF
EN
OFF
AGND
PGND
Figure 1. Typical Application Circuit
SG Micro Corp
JANUARY2023–REV. A.4
www.sg-micro.com
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
SGM66055
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
VOUT
(V)
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
M9E
XXXX
4.5 WLCSP-1.21×1.21-9B
SGM66055 5.0 WLCSP-1.21×1.21-9B
5.0 TDFN-2×3-8BL
SGM66055-4.5YG/TR
SGM66055-5.0YG/TR
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
GW6
XXXX
MC3
XXXX
SGM66055-5.0YTDC8G/TR
MARKING INFORMATION
SGM66055-4.5: WLCSP-1.21×1.21-9B
(1) XXXX = Date Code.
SGM66055-5.0: WLCSP-1.21×1.21-9B
(2) XXXX = Date Code and Trace Code.
Serial Number
Serial Number
Y Y Y
XX XX
Y Y Y
X X X X
Date Code - Week
Date Code - Year
Trace Code
Date Code - Year
SGM66055-5.0: TDFN-2×3-8BL
(3) XXXX = Date Code and Trace Code.
Serial Number
Y Y Y
X X X X
Trace Code
Date Code - Year
Green (RoHS & HSF): SG Micro Corp defines "Green" to mean Pb-Free (RoHS compatible) and free of halogen substances. If
you have additional comments or questions, please contact your SGMICRO representative directly.
OVERSTRESS CAUTION
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed in Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to
absolute maximum rating conditions for extended periods
may affect reliability. Functional operation of the device at any
conditions beyond those indicated in the Recommended
Operating Conditions section is not implied.
Voltage on VIN Pin ........................................... -0.3V to 5.5V
Voltage on VOUT Pin ........................................................6V
SW Node (DC)..................................................... -0.3V to 6V
SW Node (Transient: 10ns, 3MHz)......................... -1V to 8V
Voltage on Other Pins.......................................... -0.3V to 6V
Package Thermal Resistance
WLCSP-1.21×1.21-9B, θJA. .......................................90℃/W
TDFN-2×3-8BL, θJA....................................................85℃/W
Junction Temperature.................................................+150℃
Storage Temperature Range.......................-65℃ to +150℃
Lead Temperature (Soldering, 10s)............................+260℃
ESD Susceptibility
ESD SENSITIVITY CAUTION
This integrated circuit can be damaged by ESD if you don’t
pay attention to ESD protection. SGMICRO recommends that
all integrated circuits be handled with appropriate precautions.
Failureto observe proper handlingand installation procedures
can cause damage. ESD damage can range from subtle
performance degradation tocomplete device failure. Precision
integrated circuits may be more susceptible to damage
because very small parametric changes could cause the
device not to meet its published specifications.
HBM.............................................................................4000V
MM.................................................................................400V
CDM ............................................................................1000V
DISCLAIMER
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
JANUARY 2023
2
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
SGM66055
PIN CONFIGURATIONS
(TOP VIEW)
(TOP VIEW)
1
2
3
VIN
EN
1
2
3
4
8
7
6
5
VOUT
VOUT
VOUT
VIN
A
B
C
SW
PGND
SW
SW
EN
AGND
NC
SW
PGND
PGND
PGND
AGND
WLCSP-1.21×1.21-9B
TDFN-2×3-8BL
PIN DESCRIPTION
WLCSP-1.21×1.21-9B TDFN-2×3-8BL NAME
FUNCTION
A1, A2
A3
8
VOUT Boost Converter Output.
VIN Power Supply Input.
1
B1, B2
B3
6, 7
SW
EN
Switching Node. SW connects to an inductor.
2
Device Enable Node. Input logic high to enable this circuit.
C1, C2
C3
5
PGND Power Ground.
AGND Analog Ground.
3
—
4
NC
No Connection.
—
Exposed Pad
PGND Exposed Pad. Internally connects to PGND.
SG Micro Corp
www.sg-micro.com
JANUARY 2023
3
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
SGM66055
ELECTRICAL CHARACTERISTICS
(VIN = 3.6V, Full = -40℃ to +85℃, typical values are at TA = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
MIN
TYP
MAX
UNITS
DC/DC Stage
Input Voltage Range
Switching Frequency
Switch Current Limit
Start-up Current Limit
VIN
fSW
IL
+25℃
Full
2.5
1.80
3.3
4.5
2.55
4.8
V
MHz
A
2.20
4.2
700
50
SGM66055-4.5/5.0
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
Full
mA
WLCSP
TDFN
65
105
80
Boost Switch On-Resistance
Rectifying Switch On-Resistance
Output Voltage
VOUT = 5.0V
VOUT = 5.0V
mΩ
mΩ
V
85
WLCSP
TDFN
60
95
115
4.64
5.15
SGM66055-4.5
SGM66055-5.0
4.40
4.89
4.50
5.00
0.1
0.2
23
VOUT
Full
Line Regulation
VIN = 2.5V to VOUT - 0.5V
+25℃
+25℃
+25℃
+25℃
%
%
Load Regulation
Quiescent Current
Shutdown Current
Control Stage
IQ
VEN = VIN = 3.6V, not switching
VEN = 0V, VIN = 3.6V
33
1
µA
µA
ISD
EN Input Low Voltage
EN Input High Voltage
EN Input Current
VIL
VIH
Full
Full
Full
0.4
1
V
V
1.3
-1
IEN
Clamped on GND or VIN
µA
℃
℃
Thermal Shutdown
Thermal Shutdown Hysteresis
TSD
150
20
TSD_HYS
SG Micro Corp
www.sg-micro.com
JANUARY 2023
4
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
SGM66055
TYPICAL PERFORMANCE CHARACTERISTICS
At TA = +25℃, VIN = 3.6V, CIN = 10μF and COUT = 20μF, unless otherwise noted.
Efficiency vs. Load Current
Efficiency vs. Load Current
100
95
90
85
80
75
70
100
95
90
85
80
75
70
VIN = 2.6V
V
IN = 3V
VIN = 2.6V
V
V
IN = 3.6V
IN = 4.2V
V
V
IN = 3.6V
IN = 4V
VOUT = 5V
WLCSP Package
VOUT = 4.5V
1
10
100
1000
1
10
100
1000
Load Current (mA)
Load Current (mA)
Efficiency vs. Load Current
Maximum Output Current vs. Input Voltage
100
95
90
85
80
75
70
3
2.5
2
1.5
1
VIN = 2.6V
V
V
V
IN = 3V
IN = 3.6V
IN = 4.2V
0.5
0
VOUT = 5V
TDFN Package
VOUT = 5V
1
10
100
1000
2.5
3
3.5
4
4.5
Load Current (mA)
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
JANUARY 2023
5
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
SGM66055
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VIN = 3.6V, CIN = 10μF and COUT = 20μF, unless otherwise noted.
Load Transient Response
Load Transient Response
AC Coupled
AC Coupled
VOUT
VOUT
IOUT
IOUT
VOUT = 5V, IOUT = 500mA-1000mA-500mA, 100ns Edge
VOUT = 5V, IOUT = 100mA-500mA-100mA, 100ns Edge
Time (20μs/div)
Time (20μs/div)
Line Transient Response
Start-up after Enable
VIN = 3.3V-3.9V-3.3V, 10μs Edge, VOUT = 5V, IOUT = 500mA
VOUT = 5V, RL = 50Ω
AC Coupled
VOUT
VOUT
VIN
IL
VEN
Time (20μs/div)
Time (100μs/div)
Switching Waveform at Heavy Load
Switching Waveform at Light Load
AC Coupled
AC Coupled
VOUT
VOUT
IL
IL
VOUT = 5V, L = 1μH, IOUT = 200mA
VOUT = 5V, L = 1μH, IOUT = 10mA
Time (500ns/div)
Time (100μs/div)
SG Micro Corp
JANUARY 2023
www.sg-micro.com
6
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
SGM66055
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VIN = 3.6V, CIN = 10μF and COUT = 20μF, unless otherwise noted.
Output Short Protection
VOUT = 5V
VOUT
IL
Time (400μs/div)
SG Micro Corp
www.sg-micro.com
JANUARY 2023
7
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
SGM66055
FUNCTIONAL BLOCK DIAGRAM
L
SW
VCC
VIN
2.5V to 4.5V
A3
+
_
VIN
+
CIN
Well
2.3V
VOUT
Switch
A1
A2
VOUT
4.5V/5.0V
PWM
Control
SYNC
Drive Control
COUT
R1
Current
Sense
Σ
Slope
Comparator
Ramp Gen
2.2MHz
PWM
Comparator
+
_
_
gm
_
ERR or
AMP
0.5V
REF
RC
600kΩ
CC
+
CP2
1.5pF
Power-Save
40pF
Mode
Operation
Control
R2
Power Saving
Shutdown
Control
B3
Shutdown
EN
PGND
AGND
Figure 2. SGM66055 Block Diagram
SG Micro Corp
www.sg-micro.com
JANUARY 2023
8
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
SGM66055
APPLICATION INFORMATION
The SGM66055 is a Boost DC/DC converter operating
in 2.5V to 4.5V supply range for generating a regulated
output voltage which can be set to as low as 10%
above the supply voltage. An inductor, an output
storage capacitor and an input decoupling capacitor
should be selected to ensure proper performance
desired in a specific application circuit.
Input Capacitor
Boost converter’s input capacitor has continuous
current throughout the entire switching cycle, a 10µF
ceramic capacitor is recommended to place as close as
possible between the VCC pin and GND pin of the
device. For applications where the SGM66055 is
located far away from the input source, a 47µF or
higher capacitance capacitor is recommended to damp
the wiring harness inductance.
Start-up
The SGM66055 has built-in 600μs (TYP) soft-start time.
After enabling, this device starts switching with reduced
switching frequency of 1MHz (TYP). The switching
frequency gradually increases to nominal frequency as
output voltage increases to the target set-point upon
soft-start completing. During the soft-start period, the
inductor current is also reduced, and gradually
increases to meet the load demand as soft-start
completes. This method effectively reduces the inrush
current during start-up phase.
Output Capacitor
The output capacitors of Boost converter dictate the
output voltage ripple and load transient response.
Equation 2 is used to estimate the necessary
capacitance to achieve desired output voltage ripple,
where ΔV is the maximum allowed ripple.
IOUT ×(VOUT − V )
fSW × ΔV × VOUT
IN
CMIN
=
(2)
Since SGM66055 is an internally compensated device,
the loop response is optimized for capacitor in the
range of 10µF to 47µF. Due to the DC bias nature of
ceramic capacitors, care should be taken by verifying
manufacture’s datasheet to ensure enough effective
capacitance at desired output voltage.
Inductor Selection
Inductor is an essential element for current DC/DC
switch mode power supplies regardless of topology.
Inductor serves as the energy storage element for
power conversion. Inductance and saturation current of
inductor are two most important criterions for inductor
selection. For general design guidance, the selected
inductance should provide a peak to peak ripple current
that is around 30% of the average inductor current at
full load and nominal input voltage. The average
inductor current for a Boost converter is the input
current. Equation 1 shows the calculation of inductance
selection, where fSW is the switching frequency and ΔIL
is the inductor ripple current.
Layout Considerations
In addition to component selection, layout is a critical
step to ensure the performance of any switch mode
power supplies. Poor layout could result in system
instability, EMI failure, and device damage. Thus, place
the inductor, input and output capacitors as close to the
IC as possible, and use wide and short traces for
current carrying traces to minimize PCB inductance.
V ×(VOUT − V )
∆IL × fSW × VOUT
IN
IN
For Boost converter, the current loop of the output
capacitor from VOUT pin back to the PGND pin of the
device should be as small as possible.
L =
(1)
The selected inductor should have saturation current
ratings higher than the 4.2A (TYP) current limit of
SGM66055-4.5/5.0.
The inductor also affects the close loop response of the
DC/DC converter. The SGM66055 is an internally
compensated device; the loop response is optimized
for inductor in the range of 0.22µH and 1µH.
SG Micro Corp
www.sg-micro.com
JANUARY 2023
9
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 4A Switch
SGM66055
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
JANUARY 2023 ‒ REV.A.3 to REV.A.4
Page
EOL SGM66055-5.4YG/TR ...............................................................................................................................................................................All
APRIL 2022 ‒ REV.A.2 to REV.A.3
Page
Updated Application section ..............................................................................................................................................................................10
NOVEMBER 2021 ‒ REV.A.1 to REV.A.2
Page
Updated Start-up section...................................................................................................................................................................................10
FEBRUARY 2021 ‒ REV.A to REV.A.1
Page
Updated Marking Information section...................................................................................................................................................................2
Changes from Original (AUGUST 2018) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
JANUARY 2023
10
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
TDFN-2×3-8BL
D
e
N5
N8
L
k
E
E1
D1
N1
b
N4
BOTTOM VIEW
TOP VIEW
1.63
0.65
1.75
2.95
A
A1
A2
SIDE VIEW
0.25
0.50
RECOMMENDED LAND PATTERN (Unit: mm)
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
0.800
0.050
MIN
0.028
0.000
MAX
0.031
0.002
A
A1
A2
D
0.700
0.000
0.203 REF
0.008 REF
1.950
1.530
2.950
1.650
0.200
2.050
1.730
3.050
1.850
0.300
0.077
0.060
0.116
0.065
0.008
0.081
0.068
0.120
0.073
0.012
D1
E
E1
b
e
0.500 BSC
0.250 REF
0.020 BSC
0.010 REF
k
L
0.300
0.450
0.012
0.018
NOTE: This drawing is subject to change without notice.
SG Micro Corp
TX00141.001
www.sg-micro.com
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
WLCSP-1.21×1.21-9B
A1 CORNER
0.23
Φ
9 ×
0.21
0.4
0.4
RECOMMENDED LAND PATTERN
TOP VIEW
1.210± 0.025
9 × Φ0.270± 0.020
3
2
1
A
B
C
0.4
0.040± 0.005
0.195± 0.020
0.365± 0.013
0.600± 0.038
0.4
BOTTOM VIEW
SIDE VIEW
NOTES:
1. All linear dimensions are in millimeters.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00139.000
www.sg-micro.com
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
P0
W
Q2
Q4
Q2
Q4
Q2
Q4
Q1
Q3
Q1
Q3
Q1
Q3
B0
Reel Diameter
P1
A0
K0
Reel Width (W1)
DIRECTION OF FEED
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Reel Width
Reel
Diameter
A0
B0
K0
P0
P1
P2
W
Pin1
Package Type
W1
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) (mm) Quadrant
TDFN-2×3-8BL
7″
7″
9.5
9.2
2.30
1.33
3.30
1.33
1.10
0.74
4.0
4.0
4.0
4.0
2.0
2.0
8.0
8.0
Q2
Q1
WLCSP-1.21×1.21-9B
SG Micro Corp
TX10000.000
www.sg-micro.com
PACKAGE INFORMATION
CARTON BOX DIMENSIONS
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Length
(mm)
Width
(mm)
Height
(mm)
Reel Type
Pizza/Carton
7″ (Option)
7″
368
442
227
410
224
224
8
18
SG Micro Corp
www.sg-micro.com
TX20000.000
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