SGM66051 [SGMICRO]
Efficient Synchronous Boost Converter with a 2.7A Switch;
| 型号： | SGM66051 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | Efficient Synchronous Boost Converter with a 2.7A Switch |
| 文件： | 总13页 (文件大小：1116K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM66051
Efficient Synchronous
Boost Converter with a 2.7A Switch
GENERAL DESCRIPTION
FEATURES
The SGM66051 is an internally compensated, 1.1MHz
switching frequency, current mode, synchronous Boost
switching regulator, which is capable of generating 5V
output at 1A load current from a 3.3V rail. This device
also has the 5.1V and 5.4V fixed output version.
● 2.2V to 5.5V Input Voltage Range
● 5.1V and 5.4V Fixed Output Voltages
● Adjustable Output Voltage up to 5.5V
● Up to 90% Efficiency
● 20µA (TYP) Quiescent Current
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.
● 1µA (MAX) Shutdown Current
● 6V Output Voltage Clamping
● Improved Light Load Efficiency with Power-Save
Mode (PSM)
● Load Disconnect during Shutdown
● Low Reverse Leakage Current when VOUT > VIN
● Over-Temperature Protection
The SGM66051-5.1 and SGM66051-5.4 are preset for
outputting 5.1V and 5.4V, while the SGM66051-ADJ is
output voltage programmable with an external resistor
divider.
● Available in a Green TSOT-23-6 Package
● -40℃ to +85℃ Operating Temperature Range
The device is available in a Green TSOT-23-6 package
and operates over an ambient temperature range of -40℃
to +85℃.
APPLICATIONS
Single-Cell Li-Ion Powered Products
Portable Audio Players
Mobile Phones
Personal Medical Devices
TYPICAL APPLICATION
L
2.2μH
VIN
1
C1
10μF
SW
6
5
Adjustable Output
VCC
VOUT
C2
10μF
R1
R2
SGM66051
ON
3
4
EN
FB
OFF
GND
2
Figure 1. Typical Application Circuit
SG Micro Corp
MAY 2022–REV. A. 4
www.sg-micro.com
Efficient Synchronous
SGM66051
Boost Converter with a 2.7A Switch
PACKAGE/ORDERING INFORMATION
SPECIFIED
PACKAGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
VOUT (V)
TEMPERATURE
RANGE
DESCRIPTION
TSOT-23-6
TSOT-23-6
TSOT-23-6
5.1
5.4
SGM66051-5.1YTN6G/TR
SGM66051-5.4YTN6G/TR
SGM66051-ADJYTN6G/TR
G43XX
G44XX
G45XX
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +85℃
-40℃ to +85℃
-40℃ to +85℃
SGM66051
Adjustable
MARKING INFORMATION
NOTE: XX = Date Code.
YYY X X
Date Code - Month
Date Code - Year
Serial Number
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
Input Voltage Range on SW, VOUT, VCC, FB, EN
.............................................................................-0.3V to 6V
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.
TSOT-23-6, θJA ..........................................................50℃/W
Junction Temperature ................................................+150℃
Storage Temperature Range........................ -65℃ to +150℃
Lead Temperature (Soldering, 10s) ...........................+260℃
ESD Susceptibility
ESD SENSITIVITY CAUTION
HBM............................................................................ 4000V
MM................................................................................ 400V
CDM ........................................................................... 1000V
This integrated circuit can be damaged if ESD protections are
not considered carefully. 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 even small parametric changes could cause the
device not to meet the published specifications.
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range.......................................................... 2.2V to 5.5V
Operating Temperature Range ...................... -40℃ to +85℃
Operating Junction Temperature Range...... -40℃ to +125℃
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
MAY 2022
2
Efficient Synchronous
SGM66051
Boost Converter with a 2.7A Switch
PIN CONFIGURATION
(TOP VIEW)
SW
GND
EN
1
2
3
6
5
4
VCC
VOUT
FB
TSOT-23-6
PIN DESCRIPTION
PIN
1
NAME
SW
FUNCTION
Boost Switch Node. Connect this node to one terminal of power inductor.
Ground.
2
GND
EN
Enable Input. Input logic high to enable this circuit and logic low to shut
down. Do not leave this pin unconnected.
3
Output Voltage Feedback Input or Internally Connected Pin. Connect to tap
of external resister divider for SGM66051-ADJ; leave it floating for
SGM66051-5.1 and SGM66051-5.4.
4
FB
5
6
VOUT
VCC
Boost Converter Output. Place a storage capacitor close to this pin.
Supply Input.
SG Micro Corp
www.sg-micro.com
MAY 2022
3
Efficient Synchronous
SGM66051
Boost Converter with a 2.7A 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
Output Voltage Range
Input Voltage Range
VOUT
VIN
VFB
f
VIN < 0.9VOUT
Full
+25℃
Full
3.0
2.2
5.5
5.5
V
V
Feedback Voltage
SGM66051-ADJ
478
850
2.15
495
1100
2.7
510
1300
3.25
mV
kHz
A
Switching Frequency
Full
Switch Current Limit
IL
+25℃
+25℃
+25℃
+25℃
Full
Start-Up Current Limit
Boost Switch On-Resistance
Rectifying Switch On-Resistance
500
100
110
5.05
5.35
0.5
mA
mΩ
mΩ
VOUT = 5.1V
VOUT = 5.1V
SGM66051-5.1
SGM66051-5.4
VCC = 2.7V to VOUT - 0.5V
4.86
5.19
5.18
5.48
Output Voltage
V
Full
Line Regulation
%
%
+25℃
+25℃
+25℃
+25℃
Load Regulation
0.5
Quiescent Current
IQ
VEN = VCC = 3.6V, not switching
VEN = 0V, VCC = 3.6V
20
35
1
µA
µA
Shutdown Current
Control Stage
EN Input Low Voltage
EN Input High Voltage
EN Input Current
VIL
VIH
Full
Full
Full
0.4
1
V
V
1.6
Clamped on GND or VCC
µA
℃
℃
Over-Temperature Protection
Over-Temperature Hysteresis
150
20
SG Micro Corp
www.sg-micro.com
MAY 2022
4
Efficient Synchronous
SGM66051
Boost Converter with a 2.7A Switch
RECOMMENDED COMPONENTS OF TEST CIRCUITS
Component
Component
10μF/08055C106KAT2A
22μF/08055C226KAT2A
Inductor
2.2μH/CDRH5D28RHPNP-2R2NC
Capacitor
TYPICAL PERFORMANCE CHARACTERISTICS
Line Transient Response
Load Transient Response
AC Coupled
VIN
IOUT
AC Coupled
AC Coupled
VOUT
VOUT
VIN = 3V to 3.6V, VOUT = 5V, RL = 25Ω
VIN = 3.6V, VOUT = 5V, IOUT = 200mA to 800mA
Time (2ms/div)
Time (2ms/div)
Start-up after Enable
Output Voltage in Continuous Mode
EN
AC Coupled
VOUT
VOUT
SW
IL
VIN = 3.6V, VOUT = 5V, RL = 25Ω
VIN = 3.6V, VOUT = 5V, RL = 10Ω
IL
Time (1ms/div)
Time (1μs/div)
Output Voltage in Power-Save Mode
AC Coupled
VOUT
IL
VIN = 3.6V, VOUT = 5V, RL = 2.5kΩ
Time (20μs/div)
SG Micro Corp
www.sg-micro.com
MAY 2022
5
Efficient Synchronous
SGM66051
Boost Converter with a 2.7A Switch
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Output Voltage vs. Output Current
Quiescent Current vs. Input Voltage
5.10
5.05
5.00
4.95
4.90
80
65
50
35
20
VOUT = 5V, IOUT = 0mA
VIN = 3.6V, VOUT = 5V
1
10
100
1000
2.2
2.7
3.2
3.7
4.2
4.7
Output Current (mA)
Input Voltage (V)
Efficiency vs. Output Current
Efficiency vs. Input Voltage
100
80
60
40
20
0
100
VOUT = 5V
VOUT = 5V
90
80
70
60
50
VIN = 2.7V
VIN = 3.6V
VIN = 4.2V
VIN = 4.5V
IOUT = 5mA
IOUT = 60mA
IOUT = 200mA
0.01
0.1
1
10
100
1000 10000
2.2
2.7
3.2
3.7
4.2
4.7
Output Current (mA)
Input Voltage (V)
Maximum Output Current vs. Input Voltage
VOUT = 5V
2.0
1.5
1.0
0.5
0.0
2.2
2.7
3.2
3.7
4.2
4.7
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
MAY 2022
6
Efficient Synchronous
SGM66051
Boost Converter with a 2.7A Switch
TYPICAL APPLICATION CIRCUITS
L
2.2μH
VIN
1
C1
2 × 4.7μF
SW
6
5
VCC Boost Output
VCC
VOUT
C2
22μF
R1
R2
SGM66051
ON
3
4
EN
FB
OFF
GND
2
Figure 2. Power Supply Solution Having Small Total Solution Size
L
2.2μH
VIN
1
C1
2 × 4.7μF
SW
6
3
5
4
VCC
VOUT
FB
C2
22μF
SGM66051
LED Current
Up to 30mA
D
ON
EN
OFF
GND
2
R1
Figure 3. Circuit of Powering White LEDs in Lighting Applications
SG Micro Corp
www.sg-micro.com
MAY 2022
7
Efficient Synchronous
SGM66051
Boost Converter with a 2.7A Switch
FUNCTIONAL BLOCK DIAGRAM
L
CIN
2.2V to 5.5V
VCC
SW
VIN
Well
Switch
VOUT 3.0V to 5.5V
Fixed
Voltage
Sync
Drive
Control
PWM
Control
COUT
Current
Sense
Σ
Slope
COMP
Ramp GEN
1.1MHz
PWM
Comparator
R1
+
-
FB
-
gm
Error
AMP
Adjustable
-
R2
0.495V
REF
RC
300kΩ
+
CP2
2.5pF
CC
80pF
Power-Save Mode
Operation
Power Saving
Control
Shutdown
Control
EN
Shutdown
GND
Figure 4. Block Diagram
SG Micro Corp
www.sg-micro.com
MAY 2022
8
Efficient Synchronous
SGM66051
Boost Converter with a 2.7A Switch
APPLICATION INFORMATION
Design
between the VCC pin and GND pin of SGM66051. For the
applications where the SGM66051 is located far away from
the input source, a 47µF or higher capacitance capacitor is
recommended to damp the wiring harness’s inductance.
The SGM66051 is a synchronous Boost converter capable of
starting up from 2.2V input, which is suitable for majority of
readily available input sources. The device is capable of
providing up to 5.5V output, and the integrated power
MOSFET has 2.7A (TYP) switch current limit.
Output Capacitor
The output capacitors of Boost converter dictate the output
voltage ripple and load transient response. Equation 3 is used
to estimate the necessary capacitance to achieve desired
output voltage ripple. Where ΔV is the maximum allowed
ripple.
Output Voltage Configuration
The SGM66051 supports output voltage up to 5.5V, and a
resistor divider connected at FB pin is used to configure the
output voltage. The resistive divider value is calculated via
Equation 1.
IO × (VOUT − VCC
f × ΔV × VOUT
)
CMIN
=
(3)
V
− V
FB
VFB
R2
OUT
=
(1)
R1
Again, the SGM66051 is an internally compensated device.
The loop response is optimized for capacitor in the range of
4.7µF to 22µF. 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.
For simplicity, 110kΩ is recommended for R2. A 1MΩ resistor
for R1 configures the output voltage to 5V.
Inductor Selection
Inductor is an essential element for today’s DC/DC switch
mode power supplies regardless of topology. Inductor serves
as the energy storage element for power conversion.
Inductance and inductor’s saturation current are two most
important criterions for inductor selection. For general rule of
thumb, 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 2 shows the calculation of inductance selection,
where f is the switching frequency, ΔIL is the inductor ripple
Layout Guidelines
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.
For Boost converter, the output capacitor’s current loop from
VOUT pin back to the GND pin of the device should be as
small as possible.
current.
VCC
V
IN
× 1 -
L =
(2)
ΔIL × fSW
VO
The selected inductor should have a saturation current rating
higher than the 2.7A current limit of SGM66051.
Lastly, the inductor affects the close loop response of the
DC/DC converter. The SGM66051 is an internally
compensated device with the loop response optimized for
inductor in the range of 2.2µH to 10µH.
Input Capacitor
Boost converter’s input capacitor sees continuous current
throughout the entire switching cycle. A 10µF ceramic
capacitor is recommended to place as close as possible
Figure 5. Layout Example
SG Micro Corp
www.sg-micro.com
MAY 2022
9
Efficient Synchronous
SGM66051
Boost Converter with a 2.7A Switch
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
MAY 2022 ‒ REV.A.3 to REV.A.4
Page
Updated Application Information section..............................................................................................................................................................9
DECEMBER 2021 ‒ REV.A.2 to REV.A.3
Page
Updated the Figure 2 Block Diagram and Programming Output Voltage sections............................................................................................8, 9
NOVEMBER 2021 ‒ REV.A.1 to REV.A.2
Page
Added the Figure 1 Block Diagram and Figure 5. Layout Example sections..................................................................................................... 8, 9
FEBRUARY 2021 ‒ REV.A to REV.A.1
Page
Updated FEATURES and RECOMMENDED OPERATING CONDITIONS ...................................................................................................... 1, 2
Changes from Original (MARCH 2016) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
MAY 2022
10
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
TSOT-23-6
0.69
0.95
D
e
2.59
E1
E
0.99
b
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
θ
0.25
A1
c
A2
Dimensions In Millimeters
Symbol
MIN
-
MOD
MAX
1.100
0.100
1.000
0.500
0.200
3.050
1.700
2.950
A
A1
A2
b
-
0.000
0.700
0.300
0.080
2.820
1.550
2.650
-
-
-
c
-
D
E
-
-
E1
e
-
0.950 BSC
L
0.300
0°
-
-
0.600
8°
θ
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00038.002
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
TSOT-23-6
7″
9.5
3.20
3.10
1.10
4.0
4.0
2.0
8.0
Q3
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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