SGM2225 [SGMICRO]
800mA, High Voltage, Low Noise and Low Dropout Voltage Regulator;
| 型号： | SGM2225 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 800mA, High Voltage, Low Noise and Low Dropout Voltage Regulator |
| 文件： | 总19页 (文件大小：1132K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM2225
800mA, High Voltage, Low Noise
and Low Dropout Voltage Regulator
GENERAL DESCRIPTION
FEATURES
The SGM2225 is a high voltage, low noise and low
dropout voltage linear regulator. It is capable of
supplying 800mA output current with typical dropout
voltage of only 450mV. The operating input voltage
range is from 3.6V to 36V.
● Wide Operating Input Voltage Range: 3.6V to 36V
● Fixed Outputs of 1.8V, 2.5V, 3.3V, 5.0V and 12V
● Adjustable Output from 1.8V to 15V
● Output Voltage Accuracy: ±1.5% at +25℃
● Low Dropout Voltage: 450mV (TYP) at 800mA
● Current Limiting and Thermal Protection
● Excellent Load and Line Transient Responses
● With Output Automatic Discharge
Other features include logic-controlled shutdown mode,
short-circuit current limit and thermal shutdown
protection. The SGM2225 has automatic discharge
function to quickly discharge VOUT in the disabled status.
● No-Load Stability
● -40℃ to +125℃ Operating Temperature Range
● Available in Green SOT-223-3, SOT-89-3, SOIC-8,
TDFN-3×3-8L and TO-263-5B Packages
The SGM2225 is available in Green SOT-223-3,
SOT-89-3, SOIC-8, TDFN-3×3-8L and TO-263-5B
packages. It operates over an operating temperature
range of -40℃ to +125℃.
APPLICATIONS
Cellular Telephones
Palmtop Computers
High-Efficiency Linear Power Supplies
Portable Equipment
Battery-Powered Systems
TYPICAL APPLICATIONS
VIN
IN
OUT
VOUT
VIN
IN
OUT
BYP
VOUT
SGM2225-FIX
SGM2225-FIX
(SOT-223-3/SOT-89-3)
(SOIC-8)
EN
CIN
1μF
CIN
1μF
COUT
2.2μF
COUT
2.2μF
GND
GND
CBYP
10nF
Figure 1. Fixed Voltage Typical Application Circuit
Figure 2. Low Noise Regulator (Fixed Voltage Version)
VIN
VOUT
IN
OUT
SGM2225-ADJ
CFF
4.7pF
(SOIC-8/TDFN-3×3-8L/
TO-263-5B)
R1
R2
COUT
2.2μF
CIN
1μF
EN
ADJ
GND
Figure 3. Low Noise Regulator (Adjustable Voltage Version)
SG Micro Corp
NOVEMBER2022 – REV. A. 3
www.sg-micro.com
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SGM2225-1.8
SGM2225-2.5
SGM2225-3.3
SGM2225-5.0
SGM2225-1.8
SGM2225-2.5
SGM2225-3.3
SGM2225-5.0
SGM2225-12
SOT-89-3
SOT-89-3
SOT-89-3
SOT-89-3
SOT-223-3
SOT-223-3
SOT-223-3
SOT-223-3
SOT-223-3
SGM2225-1.8XK3G/TR
RB8XX
025XX
R8CXX
R8DXX
Tape and Reel, 1000
Tape and Reel, 1000
Tape and Reel, 1000
Tape and Reel, 1000
Tape and Reel, 2500
Tape and Reel, 2500
Tape and Reel, 2500
Tape and Reel, 2500
Tape and Reel, 2500
-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℃
SGM2225-2.5XK3G/TR
SGM2225-3.3XK3G/TR
SGM2225-5.0XK3G/TR
SGM2225-1.8XKC3G/TR
SGM2225-2.5XKC3G/TR
SGM2225-3.3XKC3G/TR
SGM2225-5.0XKC3G/TR
SGM2225-12XKC3G/TR
RB9
XXXXX
SWG
XXXXX
R8E
XXXXX
R8F
XXXXX
R16
XXXXX
SGM
222525XS8
XXXXX
SGM
R90XS8
XXXXX
SGM
R91XS8
XXXXX
SGM
SGM2225-2.5
SGM2225-3.3
SGM2225-5.0
SGM2225-ADJ
SGM2225-1.8
SGM2225-2.5
SGM2225-3.3
SGM2225-5.0
SGM2225-ADJ
SOIC-8
SOIC-8
SGM2225-2.5XS8G/TR
SGM2225-3.3XS8G/TR
SGM2225-5.0XS8G/TR
SGM2225-ADJXS8G/TR
SGM2225-1.8XTDB8G/TR
SGM2225-2.5XTDB8G/TR
SGM2225-3.3XTDB8G/TR
SGM2225-5.0XTDB8G/TR
SGM2225-ADJXTDB8G/TR
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℃
SOIC-8
SOIC-8
2225ADJXS8 Tape and Reel, 4000
XXXXX
SGM
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
TDFN-3×3-8L
SVPDB
XXXXX
SGM
026DB
XXXXX
SGM
R92DB
XXXXX
SGM
R93DB
XXXXX
SGM
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
Tape and Reel, 4000
R15DB
XXXXX
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
2
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
PACKAGE/ORDERING INFORMATION (continued)
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
DESCRIPTION
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
SGMR94
XO5
XXXXX
SGM2225-ADJ
TO-263-5B
SGM2225-ADJXO5G/TR
Tape and Reel, 800
-40℃ to +125℃
MARKING INFORMATION
NOTE: XX = Date Code. XXXXX = Date Code, Trace Code and Vendor Code.
SOT-89-3
SOT-223-3/SOIC-8/TDFN-3×3-8L/TO-263-5B
X X X X X
YYY X X
Date Code - Week
Date Code - Year
Serial Number
Vendor Code
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.
OVERSTRESS CAUTION
ABSOLUTE MAXIMUM RATINGS
Supply Voltage Range, VIN................................ -40V to +40V
EN to GND..............................................-0.3V to |VIN| + 0.3V
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.
SOT-89-3, θJA ............................................................75℃/W
SOT-89-3, θJC ............................................................84℃/W
SOT-223-3, θJA ..........................................................95℃/W
SOT-223-3, θJC ..........................................................50℃/W
SOIC-8, θJA ................................................................95℃/W
SOIC-8, θJC................................................................41℃/W
TDFN-3×3-8L, θJA......................................................92℃/W
TDFN-3×3-8L, θJC......................................................46℃/W
TO-263-5B, θJA ..........................................................45℃/W
TO-263-5B, θJC ..........................................................42℃/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.
HBM.............................................................................6000V
CDM ............................................................................1000V
DISCLAIMER
SG Micro Corp reserves the right to make any change in
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range, VIN .....................................3.6V to 36V
Adjustable Output Voltage Range........................1.8V to 15V
Input Effective Capacitance, CIN ......................... 0.5μF (MIN)
Output Effective Capacitance, COUT....................1μF to 10μF
circuit design, or specifications without prior notice.
CBYP Effective Capacitance............................................ 10nF
CFF Effective Capacitance............................................. 4.7pF
Operating Junction Temperature Range.......-40℃ to +125℃
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
3
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
PIN CONFIGURATIONS
SGM2225-Fixed Output (TOP VIEW)
SGM2225-Fixed Output (TOP VIEW)
GND
GND
1
2
3
1
2
3
IN
GND
OUT
OUT
GND
IN
SOT-89-3
SOT-223-3
SGM2225-Fixed Output (TOP VIEW)
SGM2225-ADJ (TOP VIEW)
EN
IN
1
2
3
4
8
7
6
5
GND
GND
GND
GND
EN
IN
1
2
3
4
8
7
6
5
GND
GND
GND
GND
OUT
BYP
OUT
ADJ
SOIC-8
SGM2225-Fixed Output (TOP VIEW)
SOIC-8
SGM2225-ADJ (TOP VIEW)
SGM2225-ADJ (TOP VIEW)
IN
IN
1
2
3
8
7
6
EN
IN
IN
1
2
3
8
7
6
EN
5
4
3
2
1
ADJ
OUT
GND
IN
GND
NC
GND
ADJ
OUT
OUT
EN
OUT
4
5
NC
OUT
4
5
NC
TDFN-3×3-8L
TDFN-3×3-8L
TO-263-5B
PIN DESCRIPTION
PIN
NAME
FUNCTION
SOT-
223-3
TDFN-
3×3-8L
TO-
263-5B
SOT-89-3
SOIC-8
Regulator Output Pin. It is recommended to use an output capacitor with
effective capacitance in the range of 1μF to 10μF to ensure stability. Pins
3 and 4 must be tied together for TDFN-3×3-8L package.
1
2
3
3
3
5-8
2
3, 4
7
4
OUT
GND
IN
2
1
3
2
Ground. Pins 5 to 8 are internally connected for SOIC-8 package.
Input Supply Voltage Pin. It is recommended to use a 1μF or larger
ceramic capacitor from IN pin to ground to get good power supply
decoupling.
1, 2
Enable Pin. Drive EN high to turn on the regulator. Drive EN low to turn off
the regulator.
‒
‒
‒
‒
1
8
1
EN
Reference Bypass Pin (fixed voltage version only). Bypass with an
external capacitor CBYP can reduce output noise to very low level.
Feedback Voltage Input Pin (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.
4
‒
‒
BYP
4
6
5
ADJ
‒
‒
‒
‒
‒
‒
5
6
‒
‒
NC
NC
No Connection.
No Connection (fixed voltage version only).
Exposed Pad. Exposed pad is internally connected to GND. Connect it to
a large ground plane to maximize thermal performance. This pad is not
an electrical connection point.
Exposed
Pad
‒
‒
‒
‒
GND
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
4
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
ELECTRICAL CHARACTERISTICS
(VIN = VOUT(NOM) + 1V, IOUT = 100μA and COUT = 2.2μF, TJ = -40℃ to +125℃, typical values are at TJ = +25℃, unless otherwise
noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
3.6
TYP
MAX
36
UNITS
Input Voltage Range
VIN
TJ = +25℃
V
Variation from nominal VOUT, TJ = +25℃
Variation from nominal VOUT
TJ = +25℃
-1.5
-2
1.5
Output Voltage Accuracy
Reference Voltage
Line Regulation
VOUT
%
V
2
1.182
1.176
1.2
0.0003
0.1
1.218
1.224
0.003
0.005
0.3
VREF
V
IN = VOUT(NOM) + 1V to 36V, TJ = +25℃
VIN = VOUT(NOM) + 1V to 36V
OUT = 100μA to 800mA, TJ = +25℃
∆VOUT
∆VIN × VOUT
%/V
%
I
∆VOUT
Load Regulation
V
OUT
IOUT = 100μA to 800mA
0.4
IOUT = 50mA, TJ = +25℃
IOUT = 50mA
30
38
55
IOUT = 200mA, TJ = +25℃
IOUT = 200mA
115
150
210
610
850
Dropout Voltage (1)
VDROP
mV
IOUT = 800mA, TJ = +25℃
IOUT = 800mA
450
Output Current Limit
Short-Circuit Current
ILIMIT
VOUT = 90% × VOUT(NOM), TJ = +25℃
VIN = VEN = 3V, VOUT = 0V
VEN ≥ 1.6V, no load, TJ = +25℃
VEN ≥ 1.6V, no load
820
1100
230
80
mA
mA
ISHORT
104
112
104
112
280
290
2250
2350
8
VEN ≥ 1.6V, IOUT = 100μA, TJ = +25℃
VEN ≥ 1.6V, IOUT = 100μA
VEN ≥ 1.6V, IOUT = 50mA, TJ = +25℃
VEN ≥ 1.6V, IOUT = 50mA
VEN ≥ 1.6V, IOUT = 800mA, TJ = +25℃
VEN ≥ 1.6V, IOUT = 800mA
VEN ≤ 0.4V (shutdown), TJ = +25℃
VEN ≤ 0.4V (shutdown)
80
220
1950
6.5
Ground Pin Current
IQ
µA
Ground Pin Quiescent Current
Enable Input Logic-Low Voltage
Enable Input Current
IQ(GND)
µA
V
12
VEN = logic low (regulator shutdown)
VEN = logic high (regulator enabled)
VENL ≤ 0.4V
0.4
VENL
1.6
IENL
IENH
1
1
µA
dB
VENH ≥ 1.6V
Power Supply Rejection Ratio
Output Voltage Noise
PSRR
f =1kHz, VOUT = 2.5V, IOUT = 50mA
VOUT = 2.5V, IOUT = 50mA, CBYP = 0µF
75
en
500
nV/ Hz
√
∆VOUT
Output Voltage Temperature Coefficient
40
ppm/℃
∆T
J
× VOUT
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
TSHDN
155
25
℃
℃
ΔTSHDN
NOTE:
1. The dropout voltage is defined as the difference between VIN and VOUT when VOUT falls to 95% × VOUT(NOM)
.
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
5
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
TYPICAL PERFORMANCE CHARACTERISTICS
TJ = +25℃, COUT = 2.2μF and IOUT = 100μA, unless otherwise noted.
Turn-On Time
Turn-On Time
VEN
VEN
VOUT
VOUT
IOUT
IOUT
VIN = 6V, VEN = 0V to 2V, IOUT = 200mA,
CIN = COUT = 1μF, CBYP = 10nF
VIN = 6V, VEN = 0V to 2V, IOUT = 200mA,
CIN = COUT = 1μF
Time (200μs/div)
Time (200μs/div)
Start-Up with Enable
Start-Up with Enable
VIN
VIN
VOUT
VOUT
IOUT
IOUT
VIN = VEN = 0V to 6V, VOUT = 5V, IOUT = 200mA,
CIN = COUT = 1μF
VIN = VEN = 0V to 6V, VOUT = 5V, IOUT = 200mA,
CIN = COUT = 1μF, CBYP = 10nF
Time (200μs/div)
Time (200μs/div)
Line Transient Response
Line Transient Response
VIN
VIN
VOUT
VOUT
VIN = VEN = 6V to 7V, VOUT = 5V, IOUT = 10mA,
CIN = COUT = 1μF, CBYP = 10nF
VIN = VEN = 6V to 7V, VOUT = 5V, IOUT = 10mA,
CIN = COUT = 1μF
Time (100μs/div)
Time (100μs/div)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
6
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, COUT = 2.2μF and IOUT = 100μA, unless otherwise noted.
Load Transient Response
Load Transient Response
IOUT
IOUT
VOUT
VOUT
VIN = 6V, VOUT = 5V, IOUT = 10mA to 800mA,
CIN = COUT = 1μF, CBYP = 10nF
VIN = 6V, VOUT = 5V, IOUT = 10mA to 800mA,
CIN = COUT = 1μF
Time (100μs/div)
Time (100μs/div)
Power Supply Rejection Ratio vs. Frequency
Power Supply Rejection Ratio vs. Frequency
0
-20
0
-20
-40
-40
-60
-60
-80
-80
-100
-100
VIN = 6V, VOUT = 5V,
VIN = 6V, VOUT = 5V,
I
OUT = 1mA, COUT = 1μF
I
OUT = 100mA, COUT = 1μF
10 100 1000 10000
Frequency (kHz)
-120
-120
0.01
0.1
1
0.01
0.1
1
10
100
1000 10000
Frequency (kHz)
Power Supply Rejection Ratio vs. Frequency
Power Supply Rejection Ratio vs. Frequency
0
-20
0
-20
-40
-40
-60
-60
-80
-80
-100
-120
-100
-120
VIN = 6V, VOUT = 5V, IOUT = 1mA,
VIN = 6V, VOUT = 5V, IOUT = 100mA,
OUT = 2.2μF, CBYP = 10nF
COUT = 2.2μF, CBYP = 10nF
C
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
7
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, COUT = 2.2μF and IOUT = 100μA, unless otherwise noted.
Output Noise Density vs. Frequency
Output Noise Density vs. Frequency
10
1
10
1
0.1
0.1
IOUT = 1mA
IOUT = 1mA
0.01
0.01
I
I
OUT = 10mA
OUT = 100mA
I
I
OUT = 10mA
OUT = 100mA
VOUT = 5V, COUT = 10μF
10 100
VOUT = 5V, COUT = 10μF, CBYP = 10nF
0.001
0.001
0.01
0.1
1
0.01
0.1
1
10
100
Frequency (kHz)
Frequency (kHz)
Output Noise Density vs. Frequency
Dropout Voltage vs. Temperature
IOUT = 50mA
10
1
10000
1000
100
I
I
OUT = 200mA
OUT = 800mA
0.1
0.01
VOUT = 5V, COUT = 1μF, IOUT = 10mA
VOUT = 5V
0.001
10
0.01
0.1
1
10
100
-40 -25 -10
5
20 35 50 65 80 95 110 125
Temperature (℃)
Frequency (kHz)
Dropout Voltage vs. Output Current
Ground Pin Current vs. Output Current
500
400
300
200
100
0
2.0
1.5
1.0
0.5
0.0
VIN = 6V, VOUT = 5V,
OUT = 0mA to 800mA
I
0
100 200 300 400 500 600 700 800
0
100 200 300 400 500 600 700 800
Output Current (mA)
Output Current (mA)
SG Micro Corp
NOVEMBER 2022
www.sg-micro.com
8
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, COUT = 2.2μF and IOUT = 100μA, unless otherwise noted.
Dropout Voltage vs. Temperature
Output Voltage vs. Temperature
180
160
140
120
100
80
5.010
5.005
5.000
4.995
4.990
4.985
4.980
VIN = 6V, VOUT = 5V, IOUT = 0.1mA
IOUT = 200mA
60
-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 (℃)
Ground Pin Current vs. Temperature
Ground Pin Current vs. Temperature
83
82
81
80
79
78
77
76
75
2020
2000
1980
1960
1940
1920
1900
1880
1860
VIN = 6V, VOUT = 5V, IOUT = 0mA
VIN = 6V, VOUT = 5V, IOUT = 800mA
-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 (℃)
Ground Pin Current vs. Input Voltage
Ground Pin Current vs. Input Voltage
2.5
2.0
1.5
1.0
0.5
0.0
0.5
0.4
0.3
0.2
0.1
0
IOUT = 100mA
IOUT = 100μA
VOUT = 5V, IOUT = 800mA
VOUT = 5V
0
2
4
6
8
10
0
1
2
3
4
5
6
7
8
Input Voltage (V)
Input Voltage (V)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
9
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
FUNCTIONAL BLOCK DIAGRAMS
IN
OUT
Current Limit
Sub-
Regulator
&
R2
Thermal Protection
R3
R1
1.2V
Reference
Voltage
C1
GND
Figure 4. Internal Block Diagram of Fixed Output Voltage (SOT-89-3 and SOT-223-3 Versions)
IN
OUT
Current Limit
&
Thermal Protection
Sub-
Regulator
Enable Logic
R2
BYP
CBYP
R3
RDIS
R1
1.2V
Reference
Voltage
C1
EN
EN
GND
Figure 5. Internal Block Diagram of Low Noise Fixed Regulator (SOIC-8 Version)
IN
OUT
ADJ
Current Limit
&
Thermal Protection
Sub-
Regulator
Enable Logic
RDIS
R1
1.2V
Reference
Voltage
C1
EN
EN
GND
Figure 6. Internal Block Diagram of Adjustable Output Voltage (SOIC-8, TDFN-3×3-8L and TO-263-5B Versions)
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
10
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
APPLICATION INFORMATION
The SGM2225 is a high voltage, low noise and low
dropout LDO and provides 800mA 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 SGM2225 useful in a
variety of applications. The SGM2225 provides
protection functions for output overload, output
short-circuit condition and overheating.
is shorted to ground, the short-circuit protection will limit
the output current to 230mA (TYP).
Thermal Shutdown
The SGM2225 can detect the temperature of die. When
the die temperature exceeds the threshold value of
thermal shutdown, the SGM2225 will be in shutdown
state and remain in this state until the die temperature
decreases to +130℃.
The SGM2225 provides an EN pin as an external chip
enable control to enable/disable the device.
Adjustable Regulator
The output voltage of the SGM2225-ADJ can be
adjusted from 1.8V to 15V. The ADJ pin will be
connected to two external resistors as shown in Figure 7,
the output voltage is determined by the following equation:
Input Capacitor Selection (CIN)
The input decoupling capacitor should be placed as
close as possible to the IN pin for ensuring the device
stability. 1μF or larger X7R or X5R ceramic capacitor is
selected to get good dynamic performance.
R
1
VOUT = VREF × 1+
(1)
R2
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.
where:
VOUT is output voltage and VREF is the internal voltage
reference, VREF = 1.2V.
VIN
VOUT
IN
OUT
ADJ
CFF
4.7pF
SGM2225-ADJ
R1
R2
COUT
CIN
1μF
EN
2.2μF
GND
Output Capacitor Selection (COUT
)
The output capacitor should be placed as close as
possible to the OUT pin. 2.2μF or larger X7R or X5R
ceramic capacitor is selected to get good dynamic
performance. The minimum effective capacitance of
COUT that SGM2225 can remain stable is 1μF. 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.
Figure 7. Adjustable Output Voltage Application
R1 and R2 can be calculated for any output voltage
range using equation 1 and R1 is recommended to be
less than 470kΩ.
Enable Operation
The EN pin of the SGM2225 is used to enable/disable
the device and to deactivate/activate the output
automatic discharge function.
Noise Bypass Capacitor (CBYP
)
In noise sensitive applications, a bypass capacitor can
be connected to the BYP pin (SOIC-8 package only) to
reduce the noise of output voltage. A 10nF ceramic
capacitor is recommended in application.
When the EN pin voltage is lower than 0.4V, the device
is in shutdown state. There is no current flowing from IN
to OUT pins. In this state, the automatic discharge
transistor is active to discharge the output voltage
through a resistor.
Output Current Limit and Short-Circuit
Protection
When overload events happen, the output current is
When the EN pin voltage is higher than 1.6V, the device
is in active state. The output voltage is regulated to the
expected value and the automatic discharge transistor
is turned off.
internally limited to 1100mA (TYP). When the OUT pin
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
11
800mA, High Voltage, Low Noise
SGM2225
and Low Dropout Voltage Regulator
APPLICATION INFORMATION (continued)
No-Load Stability
The maximum allowable power dissipation (PD(MAX)) of
the SGM2225 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:
The SGM2225 can maintain stability without output load
(except internal voltage divider).
Input Power Supply
The input power supply range is from 3.6V to 36V. VIN
must be larger than (VOUT + VDROP) in application. The
input ceramic capacitor must be placed as close as
possible to the IN pin, this CIN can help improve the
output noise performance of LDO.
PD(MAX) = (TJ(MAX) - TA)/θJA
(2)
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 IN
pin and OUT pin separately. It is recommended to use
separate ground planes for VIN and VOUT and these
ground planes are single point connected to the GND
pin.
Power Dissipation (PD)
Power dissipation (PD) of the SGM2225 can be
calculated by the equation PD = (VIN - VOUT) × IOUT
Thermal shutdown protection starts when the power
dissipation of the device is too high and the operating
junction temperature exceeds +155℃.
.
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 Typical Performance Characteristics section.........................................................................................................................................9
APRIL 2022 ‒ REV.A.1 to REV.A.2
Page
Added SGM2225-2.5XK3G/TR, SGM2225-2.5XS8G/TR and SGM2225-2.5XTDB8G/TR versions.................................................................... All
Updated Electrical Characteristics section...........................................................................................................................................................5
MARCH 2021 ‒ REV.A to REV.A.1
Page
Added SGM2225-2.5XKC3G/TR version...........................................................................................................................................................All
Updated Electrical Characteristics section...........................................................................................................................................................5
Changes from Original (MARCH 2021) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
12
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-89-3
D
2.0
A
D1
3.0
E
E1
45°
0.7
1.5
b1
L
e
b
c
1.0
1.5
e1
RECOMMENDED LAND PATTERN (Unit: mm)
Dimensions
Dimensions
In Millimeters
In Inches
Symbol
MIN
MAX
1.600
0.520
0.580
0.440
4.600
MIN
MAX
0.063
0.020
0.023
0.017
0.181
A
b
1.400
0.320
0.400
0.350
4.400
0.055
0.013
0.016
0.014
0.173
b1
c
D
D1
E
1.550 REF
0.061 REF
2.300
3.940
2.600
4.250
0.091
0.155
0.102
0.167
E1
e
1.500 TYP
3.000 TYP
0.060 TYP
0.118 TYP
e1
L
0.900
1.200
0.035
0.047
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00045.000
www.sg-micro.com
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOT-223-3
3.3
D
b1
1.5
E1
E
6.3
b
1.5
e
1
2.3
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
0.25
θ
c
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
MIN
MAX
0.071
0.004
0.067
0.033
0.122
0.014
0.264
0.146
0.287
A
A1
A2
b
1.800
0.100
1.700
0.840
3.100
0.350
6.700
3.700
7.300
0.020
1.500
0.660
2.900
0.230
6.300
3.300
6.700
0.001
0.059
0.026
0.114
0.009
0.248
0.130
0.264
b1
c
D
E
E1
e
2.300 BSC
0.091 BSC
L
0.750
0°
0.030
0°
θ
10°
10°
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00048.000
www.sg-micro.com
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
SOIC-8
0.6
D
e
2.2
E1
E
5.2
b
1.27
RECOMMENDED LAND PATTERN (Unit: mm)
L
A
A1
c
θ
A2
Dimensions
In Millimeters
Dimensions
In Inches
Symbol
MIN
MAX
1.750
0.250
1.550
0.510
0.250
5.100
4.000
6.200
MIN
MAX
0.069
0.010
0.061
0.020
0.010
0.200
0.157
0.244
A
A1
A2
b
1.350
0.100
1.350
0.330
0.170
4.700
3.800
5.800
0.053
0.004
0.053
0.013
0.006
0.185
0.150
0.228
c
D
E
E1
e
1.27 BSC
0.050 BSC
L
0.400
0°
1.270
8°
0.016
0°
0.050
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
TX00010.000
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
TO-263-5B
D
A
c1
B
L1
V
TOP E-MARK
Φ2.0±0.1
+0.1
E
DEPTH 0.1
-0.05
A2
A1
L
X
c
L2
θ
e
b
Dimensions In Millimeters
Symbol
MIN
4.40
0
MOD
MAX
4.70
0.25
2.79
0.90
0.47
1.32
A
A1
A2
b
4.57
0.10
2.59
0.77
0.34
1.22
2.69
-
c
-
c1
e
-
1.70 BSC
10.16
9.15
1.27
-
D
10.06
9.05
1.17
6.86
7.50
14.70
10.26
9.25
1.40
7.50
8.30
15.50
E
B
V
X
-
L
15.10
2.00 REF
2.30
-
L1
L2
θ
2.00
2.60
0°
8°
NOTES:
1. Body dimensions do not include mode flash or protrusion.
2. This drawing is subject to change without notice.
SG Micro Corp
TX00148.000
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
SOT-89-3
SOT-223-3
SOIC-8
7″
13.2
12.4
12.4
12.4
4.85
6.55
6.40
3.35
4.45
7.25
5.40
3.35
1.85
1.90
2.10
1.13
4.0
4.0
4.0
4.0
8.0
8.0
8.0
8.0
2.0
2.0
2.0
2.0
12.0
12.0
12.0
12.0
Q3
Q3
Q1
Q1
13″
13″
13″
TDFN-3×3-8L
TO-263-5B
13″
24.4
10.80 16.30
5.11
4.0
16.0
2.0
24.0
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
相关型号：
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