SGM66056 [SGMICRO]
Tiny, 2.2MHz, Fixed Output Synchronous Boost Converter with a 2.5A Switch;型号: | SGM66056 |
厂家: | Shengbang Microelectronics Co, Ltd |
描述: | Tiny, 2.2MHz, Fixed Output Synchronous Boost Converter with a 2.5A Switch |
文件: | 总11页 (文件大小:819K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
SGM66056
2.2MHz, Fixed Output Synchronous
Tiny Boost Converter with a 2.5A Switch
GENERAL DESCRIPTION
FEATURES
The SGM66056 is an internally compensated, 2.2MHz
switching frequency, peak current mode, synchronous
Boost switching converter. This device turns into
power-save mode to maintain high efficiency by lowering
switching frequency. Anti-ringing control circuitry
reduces EMI concerns by damping the inductor in
discontinuous mode. 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
● 5.0V Fixed Output Voltage
● 5.7V Output Voltage Clamping
● Up to 93% Efficiency
● Quiescent Current: 34µA (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
● Available in a Green WLCSP-1.21×1.21-9B Package
● -40℃ to +85℃ Operating Temperature Range
The SGM66056 is available in a Green WLCSP-
1.21×1.21-9B package. It operates over an ambient
temperature range of -40℃ to +85℃.
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
4.7μF
SW
VOUT
5.0V
VIN
VOUT
SGM66056
ON
COUT
2 × 10μF
EN
OFF
AGND
PGND
Figure 1. Typical Application Circuit
SG Micro Corp
APRIL2022–REV. A. 1
www.sg-micro.com
2.2MHz, Fixed Output Synchronous
SGM66056
Tiny Boost Converter with a 2.5A Switch
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
VOUT
(V)
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
C03
XXXX
SGM66056 5.0 WLCSP-1.21×1.21-9B
SGM66056-5.0YG/TR
Tape and Reel, 3000
-40℃ to +85℃
MARKING INFORMATION
NOTE: XXXX = Date Code.
Serial Number
Y Y Y
XX XX
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
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 (1)
Package Thermal Resistance
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
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
SGM66056
Tiny Boost Converter with a 2.5A Switch
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
Switch Node. Drain connection of low-side power MOSFET.
Device Enable Node. Pulling this pin logic high enables the device, pulling it logic low
disables the device.
EN
C1, C2
C3
PGND
AGND
Power Ground.
Analog Ground.
SG Micro Corp
APRIL 2022
www.sg-micro.com
3
2.2MHz, Fixed Output Synchronous
SGM66056
Tiny Boost Converter with a 2.5A Switch
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
Boost Switch On-Resistance
Rectifying Switch On-Resistance
Output Voltage
VIN
fSW
IL
+25℃
Full
2.5
4.5
2.55
3.5
65
V
MHz
A
1.80
1.85
2.20
2.5
50
+25℃
+25℃
+25℃
Full
VOUT = 5.0V
mΩ
mΩ
V
VOUT = 5.0V
60
80
SGM66056-5.0
4.96
5.06
0.1
0.3
34
5.18
Line Regulation
VIN = 2.5V to VOUT - 0.5V
+25℃
+25℃
+25℃
+25℃
%
Load Regulation
%
Quiescent Current
IQ
VEN = VIN = 3.6V, not switching
VEN = 0V, VIN = 3.6V
53
1
µA
µA
Shutdown Current
ISD
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 to GND or VIN
µA
℃
℃
Over-Temperature Protection
Over-Temperature Hysteresis
TSD
150
20
TSD_HYS
SG Micro Corp
www.sg-micro.com
APRIL 2022
4
2.2MHz, Fixed Output Synchronous
SGM66056
Tiny Boost Converter with a 2.5A Switch
TYPICAL PERFORMANCE CHARACTERISTICS
At TA = +25℃, VIN = 3.6V, CIN = 4.7μF, COUT = 20μF, unless otherwise noted.
Efficiency vs. Load Current
Maximum Output Current vs. Input Voltage
100
95
90
85
80
75
70
2
1.8
1.6
1.4
1.2
1
VIN = 2.6V
V
IN = 3V
V
V
IN = 3.6V
IN = 4.2V
0.8
0.6
1
10
100
1000
2.5
3
3.5
4
4.5
Load Current (mA)
Input Voltage (V)
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
VIN = 3.3V-3.9V-3.3V, 20μs Edge, VOUT = 5V, IOUT = 500mA
AC Coupled
Simultaneous Line/Load Transient Response
VIN
VOUT
IOUT
AC Coupled
VIN
VOUT
VIN = 3.9V-3.3V-3.9V, 20μs Edge
VOUT = 5V, IOUT = 500mA-1000mA-500mA, 100ns Edge
Time (20μs/div)
Time (20μs/div)
SG Micro Corp
www.sg-micro.com
APRIL 2022
5
2.2MHz, Fixed Output Synchronous
SGM66056
Tiny Boost Converter with a 2.5A Switch
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
At TA = +25℃, VIN = 3.6V, CIN = 4.7μF, COUT = 20μF, unless otherwise noted.
Start-up after Enable
Output Short Protection
VOUT = 5V
VOUT = 5V, RL = 50Ω
VOUT
VEN
VOUT
IL
IL
Time (100μs/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 = 0.47μH, IOUT = 200mA
VOUT = 5V, L = 0.47μH, IOUT = 10mA
Time (500ns/div)
Time (100μs/div)
SG Micro Corp
www.sg-micro.com
APRIL 2022
6
2.2MHz, Fixed Output Synchronous
SGM66056
Tiny Boost Converter with a 2.5A Switch
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
PWM
Control
SYNC
Drive Control
COUT
R1
Current
Sense
Σ
Slope
Comparator
Ramp Gen
2.2MHz
PWM
Comparator
+
_
_
_
gm
Error
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
7
2.2MHz, Fixed Output Synchronous
SGM66056
Tiny Boost Converter with a 2.5A Switch
APPLICATION INFORMATION
The SGM66056 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.
device. For applications where the SGM66056 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 a 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 SGM66056 is an internally compensated device,
the loop response is optimized for capacitor in the
range of 20μF 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.
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
L =
(1)
The selected inductor should have saturation current
ratings higher than the 2.5A (TYP) current limit of
SGM66056. The inductor also affects the close loop
response of the DC/DC converter.
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
possible between the VCC pin and GND pin of the
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
APRIL 2022 ‒ REV.A to REV.A.1
Page
Updated Application section ................................................................................................................................................................................8
Changes from Original (JULY 2019) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
APRIL 2022
8
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
相关型号:
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