SGM2211 [SGMICRO]
20V, 500mA, Low Noise, Low Dropout Linear Regulator;
| 型号： | SGM2211 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 20V, 500mA, Low Noise, Low Dropout Linear Regulator |
| 文件： | 总19页 (文件大小：1184K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM2211
20V, 500mA, Low Noise,
Low Dropout Linear Regulator
GENERAL DESCRIPTION
FEATURES
The SGM2211 a low noise, high PSRR, fast transient
response, and low dropout voltage linear regulator
which is designed using CMOS technology. It provides
500mA output current capability. The operating input
voltage range is from 2.7V to 20V. The adjustable
output voltage range is from 1.2V to (VIN - VDROP).
● Operating Input Voltage Range: 2.7V to 20V
● Fixed Outputs of 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V,
3.3V, 3.8V, 4.2V and 5.0V
● Adjustable Output from 1.2V to (VIN - VDROP
)
(For TDFN Package, Output Voltage can be
Adjusted above Initial Fixed Output Voltage)
● Output Voltage Accuracy: ±1% at +25℃
● Low Quiescent Current: 39μA (TYP)
● Low Dropout Voltage:
Other features include logic-controlled shutdown mode,
short-circuit current limit and thermal shutdown
protection. The SGM2211 has automatic discharge
function to quickly discharge VOUT in the disabled status.
360mV (TYP) at 500mA Load when VOUT = 5.0V
● Low Noise:
The SGM2211 is available in Green TDFN-2×2-6AL
and SOT-23-5 packages. It operates over an operating
temperature range of -40℃ to +125℃.
9.3μVRMS at VOUT = 1.2V
11μVRMS at VOUT = 2.8V
14μVRMS at VOUT = 5.0V
● PSRR (VIN = VOUT(NOM) + 1V):
100dB at 1kHz
APPLICATIONS
83dB at 10kHz
Instrumentation
52dB at 100kHz
Precision ADC and DAC
Precision Amplifiers in Industrial Equipment
Low Noise VCO
55dB at 1MHz
● Current Limiting and Thermal Protection
● Excellent Load and Line Transient Responses
● With Output Automatic Discharge
● Stable with Small Case Size Ceramic Capacitors
● Programmable Soft-Start (TDFN Package Only)
● Shutdown Supply Current: 1.2μA (TYP)
● Reverse Current Protection when VOUT > VIN
● Foldback Current-Limit Protection when VOUT is
Shorted to GND
RF System
Medical Equipment
● Programmable Precision Enable
● -40℃ to +125℃ Operating Temperature Range
● Available in Green TDFN-2×2-6AL and SOT-23-5
Packages
SG Micro Corp
NOVEMBER 2022 – REV. A. 3
www.sg-micro.com
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
C1B
XXXX
C1C
XXXX
C1D
XXXX
C1E
XXXX
C1F
XXXX
C20
XXXX
C21
XXXX
C22
XXXX
C23
XXXX
C24
SGM2211-1.2
SGM2211-1.5
SGM2211-1.8
SGM2211-2.5
SGM2211-2.8
SGM2211-3.0
SGM2211-3.3
SGM2211-3.8
SGM2211-4.2
SGM2211-5.0
SGM2211-1.2
SGM2211-1.5
SGM2211-1.8
SGM2211-2.5
SGM2211-2.8
SGM2211-3.0
SGM2211-3.3
SGM2211-3.8
SGM2211-4.2
SGM2211-5.0
SGM2211-ADJ
TDFN-2×2-6AL
TDFN-2×2-6AL
TDFN-2×2-6AL
TDFN-2×2-6AL
TDFN-2×2-6AL
TDFN-2×2-6AL
TDFN-2×2-6AL
TDFN-2×2-6AL
TDFN-2×2-6AL
TDFN-2×2-6AL
SOT-23-5
SGM2211-1.2XTDI6G/TR
SGM2211-1.5XTDI6G/TR
SGM2211-1.8XTDI6G/TR
SGM2211-2.5XTDI6G/TR
SGM2211-2.8XTDI6G/TR
SGM2211-3.0XTDI6G/TR
SGM2211-3.3XTDI6G/TR
SGM2211-3.8XTDI6G/TR
SGM2211-4.2XTDI6G/TR
SGM2211-5.0XTDI6G/TR
SGM2211-1.2XN5G/TR
SGM2211-1.5XN5G/TR
SGM2211-1.8XN5G/TR
SGM2211-2.5XN5G/TR
SGM2211-2.8XN5G/TR
SGM2211-3.0XN5G/TR
SGM2211-3.3XN5G/TR
SGM2211-3.8XN5G/TR
SGM2211-4.2XN5G/TR
SGM2211-5.0XN5G/TR
SGM2211-ADJXN5G/TR
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
Tape and Reel, 3000
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
XXXX
C11XX
C12XX
C13XX
C14XX
C15XX
C16XX
C17XX
C18XX
C19XX
C1AXX
C2FXX
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
SOT-23-5
MARKING INFORMATION
NOTE: XX = Date Code. XXXX = Date Code and Trace Code.
TDFN-2×2-6AL
SOT-23-5
Serial Number
Y Y Y
X X X X
YYY X X
Date Code - Week
Date Code - Year
Serial Number
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.
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
2
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
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.
VIN to GND........................................................ -0.3V to 24V
VOUT to GND.................................................... -0.3V to 24V
EN to GND......................................................... -0.3V to 24V
SENSE/ADJ to GND.......................................... -0.3V to 24V
SS to GND................... -0.3V to VIN or 6V (whichever is less)
Package Thermal Resistance
TDFN-2×2-6AL, θJA.................................................. 100℃/W
TDFN-2×2-6AL, θJB.................................................... 37℃/W
TDFN-2×2-6AL, θJC ................................................... 77℃/W
SOT-23-5, θJA .......................................................... 182℃/W
SOT-23-5, θJB ............................................................ 44℃/W
SOT-23-5, θJC ............................................................ 70℃/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 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.
HBM.............................................................................8000V
CDM ............................................................................1000V
DISCLAIMER
SG Micro Corp reserves the right to make any change in
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range............................................2.7V to 20V
Input Effective Capacitance, CIN ......................... 1.5μF (MIN)
Output Effective Capacitance, COUT.................1.5μF to 10μF
Operating Junction Temperature Range......-40℃ to +125℃
circuit design, or specifications without prior notice.
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
3
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
PIN CONFIGURATIONS
SGM2211 (TOP VIEW)
VIN
SS
EN
VOUT
1
2
3
6
5
4
SENSE/ADJ
GND
TDFN-2×2-6AL
SGM2211-Fixed Output
(TOP VIEW)
SGM2211-ADJ
(TOP VIEW)
VIN
1
2
5
4
VOUT
ADJ
VIN
1
2
5
VOUT
GND
GND
EN
EN
3
4
NC
3
SOT-23-5
SOT-23-5
PIN DESCRIPTION
PIN
NAME
FUNCTION
TDFN-2×2-6AL
SOT-23-5
Regulator Output Pin. It is recommended to use a ceramic capacitor with
effective capacitance in the range of 1.5μF to 10μF to ensure stability. This
ceramic capacitor should be placed as close as possible to VOUT pin.
Sense Input (SENSE). Connect to load. An external resistor divider may
also set the output voltage higher than the fixed output voltage (ADJ).
1
5
VOUT
2
3
4
5
‒
2
3
‒
SENSE/ADJ
GND
EN
Ground.
Enable Pin. Drive EN high to turn on the regulator. Drive EN low to turn off
the regulator.
Soft-Start Pin. The soft-start time is determined by an external capacitor
connected to this pin.
SS
Input Voltage Supply Pin. It is recommended to use a ceramic capacitor
with a minimum effective capacitance of 1.5μF from VIN pin to ground to
get good power supply decoupling.
6
1
VIN
NC
ADJ
‒
Not Connected (fixed voltage version only).
‒
4
Feedback Input Pin (adjustable voltage version only). Connect this pin to
the external resistor divider to adjust the output voltage. Place the resistors
as close as possible to this pin.
Exposed Pad. Connect it to a large ground plane to maximize thermal
performance. This pad is not an electrical connection point.
Exposed
Pad
‒
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
4
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
ELECTRICAL CHARACTERISTICS
(VIN = (VOUT(NOM) + 1V) or 2.7V (whichever is greater), VEN = VIN, IOUT = 10mA, CIN = COUT = 2.2μF and CSS = 0nF, TJ = -40℃ to +125℃,
typical values are at TJ = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
VIN
2.7
20
V
VIN rising
2.52
2.33
39
2.70
Under-Voltage Lockout Thresholds
Operating Supply Current
VUVLO
V
VIN falling
2.16
IOUT = 0µA
IOUT = 500mA
VEN = GND
62
1200
2.2
2.5
6
IGND
µA
980
1.2
Shutdown Current
ISHDN
IADJ
µA
nA
VEN = GND, VIN = 20V
VADJ = VOUT(NOM) + 0.1V
1.3
ADJ Input Bias Current
-6
-1
VIN = (VOUT(NOM) + 1V) to 20V,
IOUT = 100μA to 500mA, TJ = +25℃
VIN = (VOUT(NOM) + 1V) to 20V,
1
Output Voltage Accuracy
Feedback Voltage
VOUT
%
V
-1.6
1.6
1.212
1.219
1
IOUT = 100μA to 500mA, TJ =-40℃ to +125℃
I
OUT = 10mA, TJ = +25℃
1.188
1.181
1.2
VADJ
VIN = (VOUT(NOM) + 1V) to 20V,
IOUT = 100μA to 500mA, TJ =-40℃ to +125℃
Input Reverse Current
Line Regulation
IREV-INPUT VEN = GND, VIN = 0V, VOUT = 20V
0.05
µA
%/V
mV
∆VOUT
∆VIN × VOUT
VIN = (VOUT(NOM) + 1V) to 20V
0.001
0.007
Load Regulation
ΔVOUT IOUT = 100μA to 500mA
3
500
450
360
1
26
730
680
580
3
V
OUT(NOM) = 2.5V
Dropout Voltage (1)
VDROP
IOUT = 500mA
VOUT(NOM) = 3.0V
VOUT(NOM) = 5.0V
mV
Soft-Start Source Current
Output Current Limit
SSI-SOURCE SS = GND
ILIMIT
VOUT = VOUT(NOM) - 1V (2)
μA
0.51
0.80
9.3
11
A
V
OUT = 1.2V
Output Voltage Noise
en
f = 10Hz to 100kHz, IOUT = 1mA
VOUT = 2.8V
VOUT = 5.0V
f = 1kHz
µVRMS
14
100
83
f = 10kHz
f = 100kHz
f = 1MHz
Power Supply Rejection Ratio
Precision EN Input
PSRR VIN = VOUT(NOM) + 1V
dB
V
52
55
VIH
VIL
Logic high, VIN = 2.7V to 20V
Logic low, VIN = 2.7V to 20V
1.120
1.050
1.210
1.120
0.1
150
100
160
20
1.295
1.195
1
Leakage Current
IEN-LKG VEN = VIN, VIN = 2.7V to 20V
µA
μs
Ω
Start-Up Time
tSTR
RDIS
From EN rising from 0V to VIN to 0.9 × VOUT, VOUT = 1.2V
VEN = 0V, VOUT = 0.5V
Output Discharge Resistance
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
140
TSHDN
ΔTSHDN
℃
℃
NOTES:
1. The dropout voltage is defined as the difference between VIN and VOUT when VOUT falls to 95% × VOUT(NOM)
2. VOUT = VOUT(NOM) - 0.2V when VOUT = 1.2V.
.
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
5
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
TYPICAL PERFORMANCE CHARACTERISTICS
TJ = +25℃, VIN = (VOUT(NOM) + 1V) or 2.7V (whichever is greater), VEN = VIN, IOUT = 10mA, CIN = COUT = 2.2μF, unless otherwise
noted.
Line Transient Response
Line Transient Response
VIN
VIN
VOUT
VOUT
VOUT = 3.0V, IOUT = 500mA, VIN= 4.0V to 5.0V
VOUT = 5.0V, IOUT = 500mA, VIN= 6.0V to 7.0V
Time (20μs/div)
Time (20μs/div)
Load Transient Response
Load Transient Response
IOUT
IOUT
VOUT
VOUT
VOUT = 5.0V, IOUT = 1mA to 500mA
VOUT = 3.0V, IOUT = 1mA to 500mA
Time (100μs/div)
Time (100μs/div)
Power Supply Rejection Ratio vs. Frequency
VOUT = 3.0V
Power Supply Rejection Ratio vs. Frequency
VOUT = 5.0V
120
100
80
60
40
20
0
120
100
80
60
40
20
0
VIN = 3.5V
VIN = 5.5V
V
V
IN = 4.0V
IN = 6.0V
V
V
IN = 6.0V
IN = 8.0V
0.01
0.1
1
10
100
1000 10000
0.01
0.1
1
10
100
1000 10000
Frequency (kHz)
Frequency (kHz)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
6
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, VIN = (VOUT(NOM) + 1V) or 2.7V (whichever is greater), VEN = VIN, IOUT = 10mA, CIN = COUT = 2.2μF, unless otherwise
noted.
Output Noise Density vs. Frequency
VOUT = 3.0V
Output Noise Density vs. Frequency
VOUT = 5.0V
10000
1000
100
10
10000
1000
100
10
IOUT = 100μA
IOUT = 100μA
I
I
OUT = 10mA
OUT = 200mA
I
I
OUT = 10mA
OUT = 200mA
1
1
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
Output Noise Density vs. Frequency
VOUT = 1.2V
Output Voltage with/without Noise Reduction
10000
10000
1000
100
10
1000
100
10
6V No Noise Reduction
6V Noise Reduction
IOUT = 100μA
I
I
OUT = 10mA
OUT = 200mA
12V No Noise Reduction
12V Noise Reduction
1
1
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
Output Voltage vs. Input Voltage in Dropout
VOUT = 3.0V
Output Voltage vs. Input Voltage in Dropout
VOUT = 5.0V
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.8
1.6
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
IOUT = 5mA
IOUT = 5mA
I
I
OUT = 200mA
OUT = 500mA
I
I
OUT = 200mA
OUT = 500mA
2.7
2.9
3.1
3.3
3.5
3.7
2.7
3.3
3.9
4.5
5.1
5.7
Input Voltage (V)
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
7
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, VIN = (VOUT(NOM) + 1V) or 2.7V (whichever is greater), VEN = VIN, IOUT = 10mA, CIN = COUT = 2.2μF, unless otherwise
noted.
Output Voltage vs. Input Voltage
Output Voltage vs. Input Voltage
3.006
3.004
3.002
3.000
2.998
2.996
2.994
5.006
5.004
5.002
5.000
4.998
4.996
4.994
VOUT = 3.0V, IOUT = 100μA
VOUT = 5.0V, IOUT = 100μA
4
4
0
6
8
10
12
14
16
18
20
6
6
0
8
10
12
14
16
18
20
Input Voltage (V)
Input Voltage (V)
Ground Pin Current vs. Input Voltage
Ground Pin Current vs. Input Voltage
70
60
50
40
30
20
10
70
60
50
40
30
20
10
VOUT = 3.0V, IOUT = 100μA
VOUT = 5.0V, IOUT = 100μA
6
8
10
12
14
16
18
20
8
10
12
14
16
18
20
Input Voltage (V)
Input Voltage (V)
Output Voltage vs. Output Current
Output Voltage vs. Output Current
3.006
3.004
3.002
3.000
2.998
2.996
2.994
5.004
5.002
5.000
4.998
4.996
4.994
4.992
VOUT = 3.0V
400 500
VOUT = 5.0V
400 500
100
200
300
100
200
300
Output Current (mA)
Output Current (mA)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
8
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, VIN = (VOUT(NOM) + 1V) or 2.7V (whichever is greater), VEN = VIN, IOUT = 10mA, CIN = COUT = 2.2μF, unless otherwise
noted.
Dropout Voltage vs. Output Current
Dropout Voltage vs. Output Current
500
400
300
200
100
0
500
400
300
200
100
0
VOUT = 3.0V
400 500
VOUT = 5.0V
400 500
0
100
200
300
0
100
200
300
Output Current (mA)
Output Current (mA)
Ground Pin Current vs. Output Current
Ground Pin Current vs. Output Current
1000
800
600
400
200
0
1000
800
600
400
200
0
VOUT = 5.0V
400 500
VOUT = 3.0V
400 500
0
100
200
300
0
100
200
300
Output Current (mA)
Output Current (mA)
Output Voltage vs. Temperature
Output Voltage vs. Temperature
3.008
3.006
3.004
3.002
3.000
2.998
2.996
5.000
4.998
4.996
4.994
4.992
4.990
4.988
VOUT = 3.0V, IOUT = 10mA
VOUT = 5.0V, IOUT = 10mA
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
9
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, VIN = (VOUT(NOM) + 1V) or 2.7V (whichever is greater), VEN = VIN, IOUT = 10mA, CIN = COUT = 2.2μF, unless otherwise
noted.
Ground Pin Current vs. Temperature
Ground Pin Current vs. Temperature
980
960
940
920
900
880
860
50
45
40
35
30
25
20
VOUT = 3.0V
VOUT = 5.0V
VOUT = 5.0V
VOUT = 3.0V
IOUT = 0mA
IOUT = 500mA
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
Shutdown Current vs. Temperature
Shutdown Current vs. Temperature
1.8
1.6
1.4
1.2
1.0
0.8
0.6
1.8
1.6
1.4
1.2
1.0
0.8
0.6
VIN = 20V
VIN = 20V
VIN = 6.0V
VIN = 4.0V
VOUT = 3.0V, IOUT = 0mA
VOUT = 5.0V, IOUT = 0mA
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
Dropout Voltage vs. Temperature
Dropout Voltage vs. Temperature
700
600
500
400
300
200
700
600
500
400
300
200
VOUT = 5.0V, IOUT = 500mA
VOUT = 3.0V, IOUT = 500mA
-40 -25 -10
5
20 35 50 65 80 95 110 125
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Temperature (℃)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
10
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, VIN = (VOUT(NOM) + 1V) or 2.7V (whichever is greater), VEN = VIN, IOUT = 10mA, CIN = COUT = 2.2μF, unless otherwise
noted.
Typical Start-Up Behavior
Typical Soft-Start Behavior, Different CSS
6
5
4
3
2
1
0
2.4
2.0
1.6
1.2
0.8
0.4
0.0
VOUT = 1.2V,
VEN
V
V
V
OUT = 1.2V
OUT = 2.8V
OUT = 5.0V
TDFN-2×2-6AL
VEN
C
C
C
SS = 1nF
SS = 3.3nF
SS = 10nF
0
2
4
6
8
10 12 14 16 18 20
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
1
Time (ms)
Time (ms)
Typical Soft-Start Behavior, Different CSS
Typical Soft-Start Behavior, Different CSS
3.2
7
VOUT = 5.0V,
2.8
2.4
2.0
1.6
1.2
0.8
0.4
0.0
6
5
4
3
2
1
0
TDFN-2×2-6AL
VOUT = 2.8V,
TDFN-2×2-6AL
VEN
VEN
C
C
C
SS = 1nF
SS = 3.3nF
SS = 10nF
C
C
C
SS = 1nF
SS = 3.3nF
SS = 10nF
0
2
4
6
8
10 12 14 16 18 20
0
2
4
6
8
10 12 14 16 18 20
Time (ms)
Time (ms)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
11
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
TYPICAL APPLICATION CIRCUITS
VIN = 6V
VIN
VOUT = 5V
VOUT
COUT
2.2μF
CIN
2.2μF
SGM2211-5.0
SENSE/ADJ
ON
SS
EN
GND
OFF
CSS
1nF
Figure 1. SGM2211 with Fixed Output Voltage, 5V (TDFN-2×2-6AL)
VIN = 7V
VOUT = 6V
VIN
VOUT
R1
2kΩ
COUT
2.2μF
CIN
2.2μF
SGM2211-5.0
SENSE/ADJ
R2
10kΩ
ON
SS
EN
GND
OFF
CSS
1nF
Figure 2. SGM2211 with 5V Output Adjusted to 6V (TDFN-2×2-6AL)
V
IN = 6V
CIN
VOUT = 5V
VIN
VOUT
COUT
2.2μF
2.2μF
SGM2211-5.0
ON
EN
NC
GND
OFF
Figure 3. SGM2211 with Fixed Output Voltage, 5V (SOT-23-5)
VIN = 7V
VOUT = 6V
VIN
VOUT
COUT
2.2μF
CIN
2.2μF
R1
9.6kΩ
SGM2211
-ADJ
ADJ
ON
R2
2.4kΩ
EN
GND
OFF
Figure 4. SGM2211 with 1.2V Output Adjusted to 6V (SOT-23-5)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
12
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
FUNCTIONAL BLOCK DIAGRAMS
SGM2211-ADJ
VIN
VOUT
Sub-Regulator
GND
SENSE/ADJ
RDIS
Voltage
Short-Circuit &
Thermal Protection
1.2V
R1
Reference
R3
C1
R2
C2
C3
R4
EN
Shutdown
Figure 5. Block Diagram (TDFN-2×2-6AL and SOT-23-5 Adjustable Version)
SGM2211
VIN
VOUT
Sub-Regulator
GND
RDIS
Voltage
Reference
1.2V
R1
Short-Circuit &
Thermal Protection
R3
C3
C1
R2
C2
R4
EN
Shutdown
Figure 6. Block Diagram (SOT-23-5 Fixed Version)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
13
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
APPLICATION INFORMATION
The SGM2211 is a low noise, fast transient response
high performance LDO, it consumes only 39μA (TYP)
quiescent current and provides 500mA output current.
The SGM2211 provides the protection function for
output overload, output short-circuit condition and
overheating.
increase the transient response and reduce the AC
gain of the error amplifier and output noise.
VIN = 7V
VOUT = 6V
VIN
VOUT
COUT
2.2μF
CIN
2.2μF
R1
40kΩ
SGM2211-1.2
SENSE/ADJ
ON
Input Capacitor (CIN)
R2
10kΩ
EN
The input decoupling capacitor should be placed as
close as possible to the VIN pin to ensure the device
stability. 2.2μF or greater X7R or X5R ceramic
capacitor is selected to get good dynamic performance.
GND
OFF
Figure 7. SGM2211 with 1.2V Output Adjusted to 6V
When VIN is required to provide large current
instantaneously, a large effective input capacitor is
required. Multiple input capacitors can limit the input
tracking inductance. Adding more input capacitors is
available to restrict the ringing and to keep it below the
device absolute maximum ratings.
Programmable Precision Enable Operation
The SGM2211 uses the EN pin to enable/disable the
device and to deactivate/activate the output automatic
discharge function.
When the EN pin voltage is lower than 1.1V, the device
is in shutdown state. There is no current flowing from
VIN to VOUT pins. In this state, the automatic discharge
transistor is active to discharge the output voltage
through a 100Ω (TYP) resistor.
Output Capacitor (COUT
)
The output capacitor should be placed as close as
possible to the VOUT pin. A 2.2μF or greater X7R or
X5R ceramic capacitor is selected to get good dynamic
performance. The minimum effective capacitance of COUT
that SGM2211 can remain stable is 2.2μF. For ceramic
capacitor, temperature, DC bias and package size will
change the effective capacitance, so enough margin of
COUT must be considered in design. Additionally, COUT
with larger capacitance and lower ESR will help
increase the high frequency PSRR and improve the
load transient response.
When the EN pin voltage is higher than 1.2V, the device
is in active state. The output voltage is regulated to the
expected value and the automatic discharge transistor
is turned off.
The EN pin voltage threshold can be programmed by
the user and set above the nominal 1.2V by using two
resistors (REN1, REN2) as shown in Figure 7. The
nominal range of REN2 is 10KΩ to 100kΩ and the
resistance value of REN1 can be determined by the
following equation:
Adjustable Regulator
The output voltage of the SGM2211-1.2 can be adjusted
from 1.2V to (VIN - VDROP). The ADJ pin will be connected
with two external resistors as shown in Figure 7, the
output voltage is determined by the following equation:
REN1 = REN2 × (VIN - 1.2V)/1.2V
(1)
where VIN is the required starting voltage.
The coefficient of hysteresis voltage increase can be
calculated through (REN1 + REN2) / REN2. It is calculated
that the EN pin voltage threshold is 3.6V and the
voltage increase is 300mV.
R
(2)
VOUT = VADJ × 1+
1
R2
where:
VOUT is output voltage and VADJ is the internal voltage
reference, VADJ = 1.2V.
Soft-Start
When the device is enabled, the SGM2211 has an
internal soft-start (SS pin open) to limit the inrush
current. When VOUT = 1.2V, the start-up time is 150µs
(TYP).
The parallel capacitor (CFF) with R1 can be used to
improve the feedback loop stability and PSRR,
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
14
20V, 500mA, Low Noise,
SGM2211
Low Dropout Linear Regulator
APPLICATION INFORMATION (continued)
state and it will remain in this state until the die
temperature decreases to +140℃.
Output Current Limit and Short-Circuit
Protection
When overload events happen, the output current is
internally limited to 0.8A (TYP). When the VOUT pin is
shorted to ground, the short-circuit protection will limit
the output current
Layout Guidelines
To get good PSRR, low output noise and high transient
response performance, the input and output bypass
capacitors must be placed as close as possible to the
VIN pin and VOUT pin separately. VIN and VOUT had
better use separate ground planes and these ground
planes are single point connected to the GND pin.
Thermal Shutdown
The SGM2211 can detect the temperature of die. When
the die temperature exceeds the threshold value of
thermal shutdown, the SGM2211 will be in shutdown
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
NOVEMBER 2022 - REV.A.2 to REV.A.3
Page
Updated Application Information section...................................................................................................................................................... 14, 15
OCTOBER 2022 - REV.A.1 to REV.A.2
Page
Updated Features section....................................................................................................................................................................................1
MARCH 2020 - REV.A to REV.A.1
Page
Updated Figure 7...............................................................................................................................................................................................14
Changes from Original (DECEMBER 2019) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
15
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
TDFN-2×2-6AL
D
e
N6
L
D1
E1
E
N3
N1
b
BOTTOM VIEW
TOP VIEW
1.60
0.55
1.00
2.60
A
A1
A2
SIDE VIEW
0.30
0.65
RECOMMENDED LAND PATTERN (Unit: mm)
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
0.800
0.050
MIN
MAX
0.031
0.002
A
A1
A2
D
0.700
0.000
0.028
0.000
0.203 REF
0.008 REF
1.900
1.500
1.900
0.900
0.250
2.100
1.700
2.100
1.100
0.350
0.075
0.059
0.075
0.035
0.010
0.083
0.067
0.083
0.043
0.014
D1
E
E1
b
e
0.650 BSC
0.026 BSC
L
0.174
0.326
0.007
0.013
NOTE: This drawing is subject to change without notice.
SG Micro Corp
TX00132.000
www.sg-micro.com
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-23-5
1.90
D
e1
2.59
E1
E
0.99
b
e
0.95
0.69
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
c
θ
0.2
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.250
0.100
1.150
0.500
0.200
3.020
1.700
2.950
MIN
MAX
0.049
0.004
0.045
0.020
0.008
0.119
0.067
0.116
A
A1
A2
b
1.050
0.000
1.050
0.300
0.100
2.820
1.500
2.650
0.041
0.000
0.041
0.012
0.004
0.111
0.059
0.104
c
D
E
E1
e
0.950 BSC
1.900 BSC
0.037 BSC
0.075 BSC
e1
L
0.300
0°
0.600
8°
0.012
0°
0.024
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
TX00033.000
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-2×2-6AL
SOT-23-5
7″
7″
9.5
9.5
2.30
3.20
2.30
3.20
1.10
1.40
4.0
4.0
4.0
4.0
2.0
2.0
8.0
8.0
Q1
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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