SGM2209 [SGMICRO]
-24V, -500mA, Low Noise, High PSRR, Negative Output Linear Regulator;
| 型号： | SGM2209 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | -24V, -500mA, Low Noise, High PSRR, Negative Output Linear Regulator |
| 文件： | 总20页 (文件大小：921K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM2209
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
GENERAL DESCRIPTION
FEATURES
The SGM2209 is a low power, low noise, fast transient
response and low dropout voltage linear regulator. It
provides -500mA output current capability. The
operating input voltage range is from -2.7V to -24V. The
● Input Voltage Range: -2.7V to -24V
● Fixed Outputs of 1.2V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V,
3.3V and 5.0V
● Adjustable Output from -1.2V to (-VIN + VDROP
)
adjustable output voltage range is from -1.2V to (-VIN
DROP).
+
● -500mA Output Current
V
● Output Voltage Accuracy: ±1% at +25℃
● Low Quiescent Current:
Other features include logic-controlled shutdown mode,
short-circuit current limit and thermal shutdown
protection. The SGM2209 has automatic discharge
function to quickly discharge VOUT in the disabled status.
IGND = -1.2mA (TYP) with -500mA Load
● Low Dropout Voltage:
-345mV (TYP) at -500mA, at VOUT = -3.0V
● Low Noise:
The SGM2209 is available in Green TDFN-2×2-6AL,
TDFN-3×3-8L and SOT-23-5 packages. It operates over
an operating temperature range of -40℃ to +125℃.
10.5μVRMS (TYP) at VOUT = -1.2V
12μVRMS (TYP) at VOUT = -2.5V
16μVRMS (TYP) at VOUT = -5.0V
● PSRR: -60dB at 10kHz at VOUT = -2.5V
● Positive or Negative Enable Logic
● Current Limiting and Thermal Protection
● With Output Automatic Discharge
APPLICATIONS
Industrial and Medical Equipment
Communications and Infrastructure
Precision Amplifiers
● Stable with Small Case Size Ceramic Capacitors
● Low Shutdown Supply Current: -1.1μA (TYP)
● -40℃ to +125℃ Operating Temperature Range
● Available in Green TDFN-2×2-6AL, TDFN-3×3-8L
and SOT-23-5 Packages
ADC and DAC Circuits
TYPICAL APPLICATION
V
IN = -8V
VIN = -8V
V
OUT = -5V
V
OUT = -5V
VOUT
VOUT
VIN
EN
VIN
EN
41.2kΩ
13kΩ
SGM2209-ADJ
SGM2209
CIN
2.2μF
CIN
2.2μF
COUT
2.2μF
COUT
2.2μF
ADJ
ON
ON
2V
0V
2V
0V
OFF
-2V
OFF
-2V
GND
GND
ON
ON
Fixed Output Voltage Version, VOUT = -5.0V
Adjustable Output Voltage Version, VOUT = -5.0V
Figure 1. Typical Application Circuits
SG Micro Corp
NOVEMBER 2022 – REV. A. 1
www.sg-micro.com
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
MY2
XXXX
SGM2209-1.2
SGM2209-1.5
SGM2209-1.8
SGM2209-2.5
SGM2209-2.8
SGM2209-3.0
SGM2209-3.3
SGM2209-5.0
SGM2209-ADJ
TDFN-2×2-6AL
SGM2209-1.2XTDI6G/TR
SGM2209-1.5XTDI6G/TR
SGM2209-1.8XTDI6G/TR
SGM2209-2.5XTDI6G/TR
SGM2209-2.8XTDI6G/TR
SGM2209-3.0XTDI6G/TR
SGM2209-3.3XTDI6G/TR
SGM2209-5.0XTDI6G/TR
SGM2209-ADJXTDI6G/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
-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℃
MY3
XXXX
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
CA3
XXXX
MY4
XXXX
CA4
XXXX
CA5
XXXX
CA6
XXXX
MY5
XXXX
MY6
XXXX
SGM
C9CDB
XXXXX
SGM
C9DDB
XXXXX
SGM
C9EDB
XXXXX
SGM
C9FDB
XXXXX
SGM
CA0DB
XXXXX
SGM
CA1DB
XXXXX
SGM
CA2DB
XXXXX
SGM
MY0DB
XXXXX
SGM
SGM2209-1.2
SGM2209-1.5
SGM2209-1.8
SGM2209-2.5
SGM2209-2.8
SGM2209-3.0
SGM2209-3.3
SGM2209-5.0
SGM2209-ADJ
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
SGM2209-1.2XTDB8G/TR
SGM2209-1.5XTDB8G/TR
SGM2209-1.8XTDB8G/TR
SGM2209-2.5XTDB8G/TR
SGM2209-2.8XTDB8G/TR
SGM2209-3.0XTDB8G/TR
SGM2209-3.3XTDB8G/TR
SGM2209-5.0XTDB8G/TR
SGM2209-ADJXTDB8G/TR
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
-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℃
MY1DB
XXXXX
SG Micro Corp
www.sg-micro.com
NOVEMBER2022
2
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
PACKAGE/ORDERING INFORMATION (continued)
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SGM2209-1.2
SGM2209-1.5
SGM2209-1.8
SGM2209-2.5
SGM2209-2.8
SGM2209-3.0
SGM2209-3.3
SGM2209-5.0
SGM2209-ADJ
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
SGM2209-1.2XN5G/TR
SGM2209-1.5XN5G/TR
SGM2209-1.8XN5G/TR
SGM2209-2.5XN5G/TR
SGM2209-2.8XN5G/TR
SGM2209-3.0XN5G/TR
SGM2209-3.3XN5G/TR
SGM2209-5.0XN5G/TR
SGM2209-ADJXN5G/TR
C9AXX
C9BXX
MX9XX
MXAXX
MXBXX
MXCXX
MXDXX
MXEXX
MXFXX
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℃
MARKING INFORMATION
NOTE: X = Date Code. XX = Date Code. XXXXX = Date Code, Trace Code and Vendor Code.
TDFN-2×2-6AL
TDFN-3×3-8L
X X X X X
Serial Number
Y Y Y
X X X X
Vendor Code
Trace Code
Trace Code
Date Code - Year
Date Code - Year
SOT-23-5
YYY X X
Date Code - Week
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.
SG Micro Corp
www.sg-micro.com
NOVEMBER2022
3
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
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 -25V
VOUT to GND...........................................+0.3V to VIN - 0.3V
EN to GND...................................................+5V to VIN - 0.3V
EN to VIN......................................................... +25V to -0.3V
ADJ to GND..................................................... +0.3V to VOUT
Package Thermal Resistance
TDFN-2×2-6AL, θJA.................................................. 101℃/W
TDFN-2×2-6AL, θJB.................................................... 39℃/W
TDFN-2×2-6AL, θJC ................................................... 83℃/W
TDFN-3×3-8L, θJA...................................................... 70℃/W
TDFN-3×3-8L, θJB...................................................... 25℃/W
TDFN-3×3-8L, θJC...................................................... 47℃/W
SOT-23-5, θJA .......................................................... 186℃/W
SOT-23-5, θJB ............................................................ 45℃/W
SOT-23-5, θJC ............................................................ 74℃/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.
Failure to observe proper handling and 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.
DISCLAIMER
HBM.............................................................................8000V
CDM ............................................................................1000V
SG Micro Corp reserves the right to make any change in
circuit design, or specifications without prior notice.
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range......................................... -2.7V to -24V
Operating Junction Temperature Range...... -40℃ to +125℃
Input Capacitance, CIN........................................ 1.5μF (MIN)
Output Capacitance, COUT ...............................1.5μF to 10μF
PIN CONFIGURATIONS
SGM2209-Fixed Output
(TOP VIEW)
SGM2209-ADJ
(TOP VIEW)
VOUT
NC
1
2
3
6
5
4
VIN
GND
NC
VOUT
ADJ
EN
1
2
3
6
5
4
VIN
GND
NC
VIN
VIN
EN
TDFN-2×2-6AL
TDFN-2×2-6AL
SG Micro Corp
www.sg-micro.com
NOVEMBER2022
4
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
PIN CONFIGURATIONS (continued)
SGM2209-Fixed Output
(TOP VIEW)
SGM2209-ADJ
(TOP VIEW)
VOUT
VOUT
NC
1
2
3
4
8
7
6
5
VIN
VIN
GND
NC
VOUT
VOUT
ADJ
1
2
3
4
8
7
6
5
VIN
VIN
GND
NC
VIN
VIN
EN
EN
TDFN-3×3-8L
TDFN-3×3-8L
SGM2209-Fixed Output
(TOP VIEW)
SGM2209-ADJ
(TOP VIEW)
GND
VIN
EN
1
5
VOUT
GND
VIN
EN
1
5
4
VOUT
ADJ
2
3
2
3
4
NC
SOT-23-5
SOT-23-5
PIN DESCRIPTION
PIN
NAME
FUNCTION
TDFN-
2×2-6AL
TDFN-
3×3-8L
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.
1
2
3
1, 2
5
VOUT
NC
Not Connected (fixed voltage version).
Adjustable Input (adjustable voltage version only). Connect this pin to the
midpoint of an external resistor divider to adjust the output voltage. Place the
resistors as close as possible to this pin.
Enable Pin. Drive EN 2.0V above or below ground to turn on the regulator.
Drive EN to ground to turn off the regulator. Connect the EN pin to the VIN
pin when using automatic startup.
3
4
ADJ
4
3
EN
4
5
5
6
‒
NC
Not Connected.
Ground.
1
GND
Input Voltage Supply Pin. It is recommended to use a 2.2μF or larger ceramic
capacitor from VIN pin to ground to get good power supply decoupling. This
ceramic capacitor should be placed as close as possible to VIN pin.
Exposed Pad. Connect the exposed pad at the bottom of the package to the
internal VIN for maximum thermal performance. In normal use, connect the
exposed pad to the VIN on the board, which is the most negative potential in
the negative voltage regulating circuit.
6
7, 8
2
VIN
VIN
Exposed
Pad
Exposed
Pad
‒
SG Micro Corp
www.sg-micro.com
NOVEMBER2022
5
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
ELECTRICAL CHARACTERISTICS
(VIN = (VOUT(NOM) - 0.5V) or -2.7V (whichever is greater), VEN = VIN, IOUT = -10mA, CIN = COUT = 2.2μF, TJ = -40℃ to +125℃,
typical values are at TJ = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
+25℃
+25℃
+25℃
+25℃
MIN
-2.7
-3.0
-3.3
-1
TYP
MAX UNITS
I
OUT = -250mA
-24
-24
-24
1
V
V
Input Voltage Range
VIN
IOUT = -350mA
IOUT = -500mA
V
I
OUT = -10mA
%
Output Voltage Accuracy
Feedback Voltage
VOUT
VIN = (VOUT(NOM) - 0.5V) to -24V,
IOUT = -1mA to -500mA
-40℃ to +125℃
+25℃
-1.5
1.5
%
V
I
OUT = -10mA
-1.188 -1.2 -1.212
VADJ
VIN = (VOUT(NOM) - 0.5V) to -24V,
IOUT = -1mA to -500mA
-40℃ to +125℃ -1.182
-1.218
V
ADJ Pin Input Bias Current
IADJ
VADJ = -1.3V, VIN = -2.7V to -24V
VIN falling
-40℃ to +125℃
-40℃ to +125℃
-3.5
3.5
nA
V
-2.42 -2.50
Under-Voltage Lockout Thresholds
VUVLO
VIN rising
-40℃ to +125℃ -2.24 -2.33
V
∆VOUT
∆VIN × VOUT
∆VOUT
Line Regulation
Load Regulation
VIN = (VOUT(NOM) - 0.5V) to -24V
IOUT = -1mA to -500mA
-40℃ to +125℃
-40℃ to +125℃
0.001
0.03
0.03
0.8
%/V
%
VOUT
V
OUT(NOM) = -2.5V
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
+25℃
-230
-160
-350
-260
-220
-370
-300
-550
-420
I
OUT = -250mA
VOUT(NOM) = -3.0V
VOUT(NOM) = -5.0V
VOUT(NOM) = -3.0V
VOUT(NOM) = -5.0V
VOUT(NOM) = -3.0V
VOUT(NOM) = -5.0V
-125
Dropout Voltage (1)
VDROP
-230
mV
IOUT = -350mA
IOUT = -500mA
-180
-345
-260
Output Current Limit (2)
Short-Circuit Current
ILIMIT
VIN = MIN(VOUT(NOM) - 1V, -4V)
-0.68 -1.05
A
VOUT = 0V,
VIN = MIN(VOUT(NOM) - 1V, -4V)
ISHORT
+25℃
-360
mA
IOUT = 0µA
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-40℃ to +125℃
-42
-1.2
-83
-2.1
-3.0
-10
µA
Operating Supply Current
Shutdown Current
IGND
IOUT = -500mA
VEN = GND
mA
-1.1
ISHDN
µA
V
VEN = GND, VIN = -24V
-1.2
Positive Enable High-Level Voltage
Positive Enable Low-Level Voltage
Negative Enable High-Level Voltage
Negative Enable Low-Level Voltage
EN Positive Input Current
VEN(+HI)
VEN(+LO)
VEN(-HI)
1.22
0.3
-2.0
V
VEN(-LO
IEN_P
)
-40℃ to +125℃ -0.55
-40℃ to +125℃
-40℃ to +125℃
+25℃
VEN = 5V, VIN = -19V
VEN = -24V, VIN = -24V
VOUT(NOM) = -1.2V
0.9
-0.1
210
540
3
µA
µA
EN Negative Input Current
IEN_N
-1
Start-Up Time (3)
tSTR
µs
VOUT(NOM) = -5.0V
+25℃
NOTES:
1. The dropout voltage is defined as the difference between VIN and VOUT when VOUT falls to 95% × VOUT(NOM)
2. Output current limit has the function of current foldback protection and refers to the current at which VOUT falls to 90% ×
VOUT(NOM)
.
.
3. The start-up time is defined as the time between the EN rising edge to VOUT reaching 90% × VOUT(NOM)
.
SG Micro Corp
www.sg-micro.com
NOVEMBER2022
6
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
ELECTRICAL CHARACTERISTICS (continued)
(VIN = (VOUT(NOM) - 0.5V) or -2.7V, whichever is greater, VEN = VIN, IOUT = -10mA, CIN = COUT = 2.2μF, TJ = -40℃ to +125℃,
typical values are at TJ = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
TEMP
+25℃
+25℃
+25℃
+25℃
+25℃
+25℃
MIN
TYP
-75
-60
-42
10.5
12
MAX UNITS
f = 1kHz
V
IN = VOUT(NOM) - 1V,
Power Supply Rejection Ratio
PSRR
ΔVRIPPLE = 0.2VP-P
,
f = 10kHz
f = 100kHz
dB
all fixed output voltage options
V
OUT(NOM) = -1.2V
10Hz to 100kHz
VOUT(NOM) = -2.5V
VOUT(NOM) = -5.0V
Output Voltage Noise
en
µVRMS
16
10Hz to 100kHz, VOUT(NOM) = -15V,
adjustable mode, RFB1 = 150kΩ, RFB2 = 13kΩ
+25℃
130
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
TSHDN
160
20
℃
℃
ΔTSHDN
SG Micro Corp
www.sg-micro.com
NOVEMBER2022
7
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
TYPICAL PERFORMANCE CHARACTERISTICS
VIN = (VOUT(NOM) - 0.5V) or -2.7V, whichever is greater, VEN = VIN, IOUT = -10mA, CIN = COUT = 2.2μF, TJ = +25℃, unless otherwise
noted.
Turn-On with EN Pin
Turn-On with EN Pin
VEN
VEN
VOUT
VOUT
VOUT = -1.2V
VOUT = -5.0V
Time (100μs/div)
Time (100μs/div)
Line Transient Response
Line Transient Response
VIN
VIN
VOUT
VOUT
VOUT = -1.2V, VIN = -2.7V to -3.7V
VOUT = -5.0V, VIN = -5.5V to -6.5V
Time (100μs/div)
Time (100μs/div)
Load Transient Response
Load Transient Response
IOUT
IOUT
VOUT
VOUT
VOUT = -5.0V, VIN = -6.0V, IOUT = -2mA to -200mA
VOUT = -1.2V, VIN = -2.7V, IOUT = -2mA to -200mA
Time (50μs/div)
Time (50μs/div)
SG Micro Corp
www.sg-micro.com
NOVEMBER2022
8
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = (VOUT(NOM) - 0.5V) or -2.7V, whichever is greater, VEN = VIN, IOUT = -10mA, CIN = COUT = 2.2μF, TJ = +25℃, unless otherwise
noted.
Load Transient Response
Load Transient Response
IOUT
IOUT
VOUT
VOUT
VOUT = -5.0V, VIN = -6.0V, IOUT = -2mA to -500mA
VOUT = -1.2V, VIN = -3.3V, IOUT = -2mA to -500mA
Time (50μs/div)
Time (50μs/div)
Power Supply Rejection Ratio vs. Frequency
VOUT = -1.2V
Power Supply Rejection Ratio vs. Frequency
VOUT = -2.5V
0
-20
0
-20
-40
-40
VIN = -6.5V
VIN = -4.5V
VIN = -4.2V
VIN = -3.2V
VIN = -3.5V
VIN = -2.7V
-60
-60
-80
-80
-100
-100
0.01
0.1
1
10
100
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
Power Supply Rejection Ratio vs. Frequency
VOUT = -5.0V
Dropout Voltage vs. Output Voltage
IOUT = -250mA
0
-20
-700
-600
-500
-400
-300
-200
-100
0
I
I
OUT = -350mA
OUT = -500mA
-40
VIN = -9.0V
VIN = -7.0V
VIN = -6.0V
-60
-80
-100
0.01
0.1
1
10
100
-2.5
-3
-3.5
-4
-4.5
-5
Frequency (kHz)
Output Voltage (V)
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-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = (VOUT(NOM) - 0.5V) or -2.7V, whichever is greater, VEN = VIN, IOUT = -10mA, CIN = COUT = 2.2μF, TJ = +25℃, unless otherwise
noted.
Output Noise Density vs. Frequency
VOUT = -1.2V
Output Noise Density vs. Frequency
VOUT = -5.0V
10000
1000
100
10
10000
1000
100
10
1
1
0.01
0.1
1
10
100
-500
-500
0.01
0.1
1
10
100
-500
-500
Frequency (kHz)
Frequency (kHz)
Dropout Voltage vs. Output Current
VOUT = -2.5V
Dropout Voltage vs. Output Current
VOUT = -5.0V
-700
-600
-500
-400
-300
-200
-100
0
-350
-300
-250
-200
-150
-100
-50
0
0
-100
-200
-300
-400
0
-100
-200
-300
-400
Output Current (mA)
Output Current (mA)
Output Voltage vs. Output Current
VOUT = -2.5V, VIN = -3.3V
Output Voltage vs. Output Current
VOUT = -5.0V, VIN = -5.5V
-2.501
-2.500
-2.499
-2.498
-2.497
-5.000
-4.999
-4.998
-4.997
-4.996
0
-100
-200
-300
-400
0
-100
-200
-300
-400
Output Current (mA)
Output Current (mA)
SG Micro Corp
www.sg-micro.com
NOVEMBER2022
10
-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = (VOUT(NOM) - 0.5V) or -2.7V, whichever is greater, VEN = VIN, IOUT = -10mA, CIN = COUT = 2.2μF, TJ = +25℃, unless otherwise
noted.
Output Voltage vs. Temperature
VOUT = -1.2V
Output Voltage vs. Temperature
VOUT = -5.0V
-1.2010
-1.2005
-1.2000
-1.1995
-1.1990
-1.1985
-1.1980
-5.000
-4.998
-4.996
-4.994
-4.992
-4.990
-4.988
-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
VOUT = -2.5V
Dropout Voltage vs. Temperature
VOUT = -5.0V
-900
-800
-700
-600
-500
-400
-300
-200
-100
0
-400
-350
-300
-250
-200
-150
-100
-50
IOUT = -250mA
IOUT = -250mA
I
I
OUT = -350mA
OUT = -500mA
I
I
OUT = -350mA
OUT = -500mA
0
-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
VOUT = -5.0V, IOUT = 0mA
Ground Pin Current vs. Temperature
VOUT = -5.0V, IOUT = 0mA
-1.4
-1.2
-1.0
-0.8
-0.6
-0.4
-0.2
0.0
-70
-60
-50
-40
-30
-20
-10
0
-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
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NOVEMBER2022
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-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN = (VOUT(NOM) - 0.5V) or -2.7V, whichever is greater, VEN = VIN, IOUT = -10mA, CIN = COUT = 2.2μF, TJ = +25℃, unless otherwise
noted.
EN Negative Input Current vs. EN Voltage
VIN = -24V
EN Positive Input Current vs. EN Voltage
VIN = -19V
-0.18
-0.16
-0.14
-0.12
-0.10
-0.08
-0.06
-0.04
-0.02
0.00
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0
-3
0
-4
-8
-12
-16
-20
-24
0
1
2
3
4
5
6
EN Voltage (V)
EN Voltage (V)
Shutdown Current vs. Input Voltage
VOUT = -1.2V, IOUT = 0mA
Ground Pin Current vs. Input Voltage
VOUT = -5.0V, IOUT = 0mA
-1.20
-1.15
-1.10
-1.05
-1.00
-0.95
-0.90
-0.85
-0.80
-46.5
-46.0
-45.5
-45.0
-44.5
-44.0
-43.5
-43.0
-42.5
-6
-9
-12
-15
-18
-21
-24
0
-4
-8
-12
-16
-20
-24
Input Voltage (V)
Input Voltage (V)
Ground Pin Current vs. Output Current
VOUT = -5.0V
-1400
-1200
-1000
-800
-600
-400
-200
0
-100
-200
-300
-400
-500
Output Current (mA)
SG Micro Corp
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-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
FUNCTIONAL BLOCK DIAGRAMS
SGM2209-Fixed Output
GND
Current Limit
Reference
Voltage
UVLO
&
Thermal Protection
-
+
Shutdown and
Logic Control
EN
VIN
VOUT
Figure 2. Fixed Output Voltage Internal Block Diagram
SGM2209-ADJ
GND
Current Limit
&
Thermal Protection
-1.2V
Reference
Voltage
UVLO
-
+
ADJ
Shutdown and
Logic Control
EN
VIN
VOUT
Figure 3. Adjustable Output Voltage Internal Block Diagram
SG Micro Corp
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-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
APPLICATION INFORMATION
The SGM2209 is a low quiescent current, low noise and
low dropout LDO and provides -500mA output current.
These features make the device a reliable solution to
solve many challenging problems in the generation of
clean and accurate power supply. The high
performance also makes the SGM2209 useful in a variety
of applications. The SGM2209 provides the protection
function for output overload, output short-circuit
condition and overheating.
When EN is at ±2.0V with respect to GND, the device is
in active state. When EN is at 0V, the device is in
shutdown state. In this state, a discharge resistor
around 200kΩ connects to the VOUT pin and pulls the
VOUT pin up to GND.
The EN pin of the SGM2209 is bipolar, even though the
enable voltage can be positive or negative.
The typical hysteresis of the EN pin is shown in Figure
4. This feature is used to prevent on/off oscillations due
to noise on the EN pin when it passes the threshold
point.
The SGM2209 provides an EN pin as an external chip
enable control to enable/disable the device. When the
regulator is in shutdown state, the shutdown current
consumes as low as -1.1μA (TYP).
0.5
0.0
Input Capacitor Selection (CIN)
The input decoupling capacitor is necessary to be
connected as close as possible to the VIN pin for
ensuring the device stability. A 2.2μF or greater X7R or
X5R ceramic capacitor is selected to get good dynamic
performance.
-0.5
-1.0
-1.5
-2.0
VOUT with rising VEN
VOUT with falling VEN
When VIN is required to provide large current
instantaneously, a large effective input capacitor is
required. Multiple input capacitors can reduce the
impact from input trace inductance. Adding more input
capacitors is available to restrict the ringing and to keep
it below the device absolute maximum ratings.
-2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0
Enable Voltage (V)
Figure 4. Typical EN Pin Operation
Adjustable Regulator
For the SGM2209-ADJ, set the output voltage by using
a resistor divider as shown in Figure 5. Choose RFB2
less than 120kΩ to maintain a 10μA minimum load.
Calculate the value for the output voltage using the
following equation:
Output Capacitor Selection (COUT
)
The output capacitor should be located 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 SGM2209 can remain stable is 1.5μF. 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.
V
OUT = -1.2V × (1 + RFB1/RFB2
)
(1)
VIN = -3V
VOUT = -2.4V
VOUT
VIN
RFB1
120kΩ
SGM2209-ADJ
CIN
2.2μF
COUT
2.2μF
EN
ADJ
ON
2V
0V
GND
OFF
-2V
RFB2
120kΩ
ON
Enable Pin Operation
The EN pin is used to enable and disable the VOUT pin
under normal operating conditions. Connect the EN pin
to the VIN pin when using automatic startup.
Figure 5. Adjustable Output Voltage Application
SG Micro Corp
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NOVEMBER2022
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-24V, -500mA, Low Noise, High PSRR,
Negative Output Linear Regulator
SGM2209
APPLICATION INFORMATION (continued)
maximum allowable power dissipation (PD(MAX)) of the
Output Current Limit and Short-Circuit
Protection
When overload events happen, the output current is
internally limited to -1.05A (TYP). When the VOUT pin
is shorted to ground, the short-circuit protection will limit
the output current to -360mA (TYP).
SGM2209 is affected by many factors, including the
difference between junction temperature and ambient
temperature (TJ(MAX) - TA), package thermal resistance
from the junction to the ambient environment (θJA), the
rate of ambient airflow and PCB layout. PD(MAX) can be
approximated by the following equation:
Thermal Shutdown
P
D(MAX) = (TJ(MAX) - TA)/θJA
(2)
The SGM2209 can detect the temperature of die. When
the die temperature exceeds the threshold value of
thermal shutdown, the SGM2209 will be in shutdown
state and it will remain in this state until the die
temperature decreases to +140℃.
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.
Power Dissipation (PD)
Power dissipation (PD) of the SGM2209 can be
calculated by the equation PD = (VIN - VOUT) × IOUT. The
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 Electrical Characteristics section...........................................................................................................................................................7
Updated Typical Performance Characteristics section.........................................................................................................................................9
Updated Application Information section............................................................................................................................................................15
Changes from Original (JANUARY 2020) to REV.A...................................................................................................................................Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
NOVEMBER2022
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
TDFN-3×3-8L
D
e
N8
D1
k
E
E1
N4
N1
L
b
BOTTOM VIEW
TOP VIEW
2.3
1.5 2.725
A
A1
A2
0.675
SIDE VIEW
0.65
0.24
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
2.900
2.200
2.900
1.400
3.100
2.400
3.100
1.600
0.114
0.087
0.114
0.055
0.122
0.094
0.122
0.063
D1
E
E1
k
0.200 MIN
0.650 TYP
0.008 MIN
0.026 TYP
b
0.180
0.375
0.300
0.575
0.007
0.015
0.012
0.023
e
L
NOTE: This drawing is subject to change without notice.
SG Micro Corp
TX00058.000
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
TDFN-3×3-8L
SOT-23-5
7″
13″
7″
9.5
12.4
9.5
2.30
3.35
3.20
2.30
3.35
3.20
1.10
1.13
1.40
4.0
4.0
4.0
4.0
8.0
4.0
2.0
2.0
2.0
8.0
12.0
8.0
Q1
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)
368
442
386
227
410
280
224
224
370
8
18
5
7″
13″
SG Micro Corp
www.sg-micro.com
TX20000.000
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