SGM66055A [SGMICRO]
2.2MHz, Fixed Output Synchronous Tiny Boost Converter with a 3A Switch;
| 型号： | SGM66055A |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 2.2MHz, Fixed Output Synchronous Tiny Boost Converter with a 3A Switch |
| 文件： | 总14页 (文件大小：1202K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM66055A
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
GENERAL DESCRIPTION
FEATURES
The SGM66055A 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
0.7A. This device turns into power-save 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.
● Operating Input Voltage Range: 2.5V to 4.5V
● Fixed Output Voltages: 5.0V and 5.4V
● Output Voltage Clamping: 5.7V
● Up to 93% Efficieny
● Quiescent Current: 23µA (TYP)
● Improved Light Load Efficiency with Power-Save
Mode (PSM)
● Pass-through Mode by Pulling EN Low
● Low Reverse Leakage Current when VOUT > VIN
● Thermal Shutdown
● Available in a Green WLCSP-1.21×1.21-9B Package
● -40℃ to +85℃ Operating Temperature Range
In addition, the SGM66055A device can also support
the pass-through mode by pulling EN to low. In this
mode, the output voltage follows the input voltage with
a voltage drop by the resistance of the inductor and
high-side MOSFET.
APPLICATIONS
USB OTG
The SGM66055A-5.0 and SGM66055A-5.4 are preset
for outputting 5.0V and 5.4V respectively.
Class-D Audio Amplifier
Smart Phones and Tablets
Portable and Wearable Devices
The device is available in a Green WLCSP-1.21×1.21-
9B package and operates over an ambient temperature
range of -40℃ to +85℃.
TYPICAL APPLICATION
L
1μH
VIN
2.5V to 4.5V
CIN
SW
VOUT
5.0V/5.4V
4.7μF
VIN
VOUT
SGM66055A
EN
ON
COUT
10μF
OFF
AGND
PGND
Figure 1. Typical Application Circuit
SG Micro Corp
APRIL 2022 – REV. A. 3
www.sg-micro.com
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
VOUT
(V)
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
GP2
XXXX
5.0 WLCSP-1.21×1.21-9B
5.4 WLCSP-1.21×1.21-9B
SGM66055A-5.0YG/TR
SGM66055A-5.4YG/TR
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +85℃
-40℃ to +85℃
SGM66055A
GP3
XXXX
MARKING INFORMATION
NOTE: XXXX = Date Code.
Serial Number
Y Y Y
X X X X
Date Code - Week
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
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 (1)
Package Thermal Resistance
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.
WLCSP-1.21×1.21-9B, θJA. .......................................90℃/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
NOTE: 1. Lesser of 6V or VIN + 0.3V.
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
APRIL 2022
2
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
PIN CONFIGURATION
(TOP VIEW)
1
2
3
VOUT
VOUT
VIN
A
B
C
SW
SW
EN
PGND
PGND
AGND
WLCSP-1.21×1.21-9B
PIN DESCRIPTION
PIN
NAME
FUNCTION
A1, A2
VOUT
Boost Converter Output.
Power Supply Input.
A3
B1, B2
B3
VIN
SW
Switching Node. SW connects to an inductor.
Device Enable Node. Pulling this pin logic high enables the device and pulling it logic low
disables the device.
EN
C1, C2
C3
PGND
AGND
Power Ground.
Analog Ground.
SG Micro Corp
www.sg-micro.com
APRIL 2022
3
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
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
VIN
fSW
+25℃
Full
2.5
1.80
2.2
4.5
2.55
3.5
V
2.20
3.0
1.3
50
MHz
SGM66055A-5.0
+25℃
+25℃
+25℃
+25℃
Full
Switch Current Limit
IL
A
SGM66055A-5.4
VOUT = 5.0V
0.9
1.7
Boost Switch On-Resistance
65
mΩ
mΩ
Rectifying Switch On-Resistance
VOUT = 5.0V
60
80
SGM66055A-5.0
SGM66055A-5.4
VIN = 2.5V to VOUT - 0.5V
4.89
5.25
5.00
5.40
0.1
0.2
23
5.15
5.48
Output Voltage
V
Full
Line Regulation
+25℃
+25℃
+25℃
+25℃
%
%
Load Regulation
Quiescent Current
IQ
VEN = VIN = 3.6V, not switching
VEN = 0V, VIN = 3.6V
33
µA
µA
Shutdown Current
ISD
2.5
CONTROL STAGE
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
℃
℃
TSD
Over-Temperature Protection
Over-Temperature Hysteresis
150
20
TSD_HYS
SG Micro Corp
www.sg-micro.com
APRIL 2022
4
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
TYPICAL PERFORMANCE CHARACTERISTICS
TA = +25℃, VIN = 3.6V, CIN = 4.7μF, COUT = 20μF, unless otherwise noted.
Pass-through to Boost by EN Toggling
Pass-through to Boost by EN Toggling
VIN = 3.6V, VEN = 0V ~ 2V, VOUT = 5V, COUT = 10μF,
L = 1μH, IOUT = 0mA
VIN = 3.6V, VEN = 0V ~ 2V, VOUT = 5.4V, COUT = 10μF,
L = 1μH, IOUT = 0mA
VEN
VEN
VOUT
VOUT
IL
IL
Time (50μs/div)
Time (200μs/div)
Start-up by VIN
Start-up by VIN
VIN = VEN = 0V ~ 3.6V, VOUT = 5.4V, COUT = 10μF, L = 1μH,
VIN = VEN = 0V ~ 3.6V, VOUT = 5V, COUT = 10μF, L = 1μH,
IOUT = 0mA
IOUT = 0mA
VIN
VIN
VOUT
IL
VOUT
IL
Time (100μs/div)
Time (200μs/div)
Output Short Protection
Output Short Protection
VOUT
VOUT = 5V
VOUT = 5.4V
VOUT
IL
IL
Time (400μs/div)
Time (50μs/div)
SG Micro Corp
www.sg-micro.com
APRIL 2022
5
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25℃, VIN = 3.6V, CIN = 4.7μF, COUT = 20μF, unless otherwise noted.
Load Transient Response
Load Transient Response
AC Coupled
AC Coupled
VOUT
VOUT
IOUT
IOUT
VOUT = 5.4V, IOUT = 500mA-1000mA-500mA, 100ns Edge
VOUT = 5V, IOUT = 500mA-1000mA-500mA, 100ns Edge
Time (20μs/div)
Time (20μs/div)
Load Transient Response
Load Transient Response
AC Coupled
AC Coupled
VOUT
VOUT
IOUT
IOUT
VOUT = 5.4V, IOUT = 100mA-500mA-100mA, 100ns Edge
VOUT = 5V, IOUT = 100mA-500mA-100mA, 100ns Edge
Time (20μs/div)
Time (20μs/div)
Line Transient Response
Line Transient Response
VIN = 3.3V-3.9V-3.3V, 10μs Edge, VOUT = 5V, IOUT = 500mA
VIN = 3.3V-4V-3.3V, 10μs Edge, VOUT = 5.4V, IOUT = 500mA
AC Coupled
AC Coupled
VOUT
VOUT
VIN
VIN
Time (20μs/div)
Time (20μs/div)
SG Micro Corp
www.sg-micro.com
APRIL 2022
6
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25℃, VIN = 3.6V, CIN = 4.7μF, COUT = 20μF, unless otherwise noted.
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)
Simultaneous Line/Load Transient Response
VIN
IOUT
VOUT
VIN = 3.9V-3.3V-3.9V, 10μs Edge
VOUT = 5.4V, IOUT = 200mA-400mA-200mA, 100ns Edge
Time (50μs/div)
SG Micro Corp
www.sg-micro.com
APRIL 2022
7
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TA = +25℃, VIN = 3.6V, CIN = 4.7μF, 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
VIN = 2.6V
V
IN = 3V
V
IN = 3V
V
V
IN = 3.6V
IN = 4.2V
V
V
IN = 3.6V
IN = 4.2V
VOUT = 5V
VOUT = 5.4V
1
10
100
1000
1
10
100
1000
Load Current (mA)
Load Current (mA)
Maximum Output Current vs. Input Voltage
Maximum Output Current vs. Input Voltage
3
2.5
2
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
1.5
1
0.5
0
VOUT = 5V
VOUT = 5.4V
4.5
2.5
3
3.5
4
2.5
3
3.5
4
4.5
Input Voltage (V)
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
APRIL 2022
8
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
FUNCTIONAL BLOCK DIAGRAM
L
SW
VCC
2.5V to 4.5V
VIN
A3
+
_
VIN
CIN
2.3V
Well
Switch
VOUT
A1
A2
VOUT
5.0V/5.4V
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
+
CP2
1.5pF
CC
40pF
Power-Save Mode
Operation
R2
Power Saving
Control
Shutdown
Control
B3
Shutdown
EN
PGND
AGND
Figure 2. Block Diagram
SG Micro Corp
www.sg-micro.com
APRIL 2022
9
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
APPLICATION INFORMATION
The SGM66055A 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.
possible between the VCC pin and GND pin of the
device. For applications where the SGM66055A is
located far away from the input source, a 47µF or
higher capacitance capacitor is recommended to damp
the wiring harness inductance.
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.
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.
IOUT ×(VOUT − V )
fSW × ΔV × VOUT
IN
CMIN
=
(2)
Since SGM66055A is an internally compensated device,
the loop response is optimized for capacitor in the
range of 10µF to 47µF. If the load current is larger than
300mA, a minimum value of 22μF is recommended.
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.
V ×(VOUT − V )
∆IL × fSW × VOUT
IN
IN
L =
(1)
Layout Considerations
The selected inductor should have saturation current
ratings higher than the 3.0A (TYP) current limit of
SGM66055A-5.0 and the 1.3A (TYP) current limit of
SGM66055A-5.4.
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.
The inductor also affects the close loop response of the
DC/DC converter. The SGM66055A is an internally
compensated device; the loop response is optimized
for inductor in the range of 0.47µH and 2.2µH.
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.
Input Capacitor
Boost converter’s input capacitor has continuous
current throughout the entire switching cycle, a 4.7µF
ceramic capacitor is recommended to place as close as
SG Micro Corp
www.sg-micro.com
APRIL 2022
10
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 3A Switch
SGM66055A
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
APRIL 2022 ‒ REV.A.2 to REV.A.3
Page
Updated Application section ..............................................................................................................................................................................10
MAY 2019 ‒ REV.A.1 to REV.A.2
Page
Updated SGM66055A-5.4 ....................................................................................................................................................................... 4, 5, 7, 8
FEBRUARY 2019 ‒ REV.A to REV.A.1
Page
Updated Features................................................................................................................................................................................................1
Changes from Original (AUGUST 2018) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
APRIL 2022
11
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
NOTE: All linear dimensions are in millimeters.
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
WLCSP-1.21×1.21-9B
7″
9.2
1.33
1.33
0.74
4.0
4.0
2.0
8.0
Q1
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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