SGM2051 [SGMICRO]
1.2A, Ultra-High PSRR, Fast Load Transient, Bias Rail CMOS Voltage Regulator;
| 型号： | SGM2051 |
| 厂家： | 
Shengbang Microelectronics Co, Ltd |
| 描述： | 1.2A, Ultra-High PSRR, Fast Load Transient, Bias Rail CMOS Voltage Regulator |
| 文件： | 总14页 (文件大小：953K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SGM2051
1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
GENERAL DESCRIPTION
FEATURES
The SGM2051 is an ultra-high PSRR, fast transient
response, low noise and low dropout voltage linear
regulator which is designed using CMOS technology. It
provides 1.2A output current capability. The operating
input voltage range is from 0.5V to 5.5V and bias
supply voltage range is from 2.5V to 5.5V. The
adjustable output voltage range is from 0.5V to 3.3V.
● Input Supply Voltage Range: 0.5V to 5.5V
● Bias Supply Voltage Range: 2.5V to 5.5V
● Fixed Outputs of 0.75V, 0.8V, 0.85V, 1.0V, 1.05V,
1.1V, 1.15V, 1.2V, 1.8V, 2.8V, 3.0V and 3.3V
● Adjustable Output from 0.5V to 3.3V
● Output Voltage Accuracy: ±0.8% at +25℃
● Low Bias Input Current: 96μA (TYP)
● Low Dropout Voltage: 60mV (TYP) at 1.2A
● Low Noise: 29μVRMS (TYP)
Other features include logic-controlled shutdown mode,
short-circuit current limit and thermal shutdown
protection. The SGM2051 has automatic discharge
function to quickly discharge VOUT in the disabled status.
● High PSRR: 70dB (TYP) at 1kHz
● Very Low Bias Input Current in Shutdown: < 1μA
● Current Limiting and Thermal Protection
● Excellent Load and Line Transient Responses
● With Output Automatic Discharge
The SGM2051 is available in a Green WLCSP-0.8×1.2-6B-A
package. It operates over an operating temperature
range of -40℃ to +125℃.
● Stable with Small Case Size Ceramic Capacitors
● Logic Level Enable Input for ON/OFF Control
● -40℃ to +125℃ Operating Temperature Range
● Available in a Green WLCSP-0.8×1.2-6B-A Package
APPLICATIONS
Portable Equipment
Smartphone
Industrial and medical Equipment
TYPICAL APPLICATION
VIN
VIN
VIN
EN
VIN
EN
VOUT
VOUT
VOUT
SNS
VOUT
ADJ
ON
ON
CIN
10μF
CIN
R1
R2
CFF
SGM2051
SGM2051-ADJ
10μF
OFF
VBIAS
OFF
VBIAS
COUT
10μF
COUT
10μF
BIAS
BIAS
GND
GND
CBIAS
CBIAS
Fixed Voltage Typical Application Circuit
Adjustable Voltage Typical Application Circuit
Figure 1. Typical Application Circuits
SG Micro Corp
NOVEMBER 2022 – REV.A.1
www.sg-micro.com
1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
PACKAGE/ORDERING INFORMATION
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
ORDERING
NUMBER
PACKAGE
MARKING
PACKING
OPTION
MODEL
DESCRIPTION
SGM2051-0.75 WLCSP-0.8×1.2-6B-A
SGM2051-0.8 WLCSP-0.8×1.2-6B-A
SGM2051-0.85 WLCSP-0.8×1.2-6B-A
SGM2051-1.0 WLCSP-0.8×1.2-6B-A
SGM2051-1.05 WLCSP-0.8×1.2-6B-A
SGM2051-1.1 WLCSP-0.8×1.2-6B-A
SGM2051-1.15 WLCSP-0.8×1.2-6B-A
XXX
CZ5
SGM2051-0.75XG/TR
SGM2051-0.8XG/TR
SGM2051-0.85XG/TR
SGM2051-1.0XG/TR
SGM2051-1.05XG/TR
SGM2051-1.1XG/TR
SGM2051-1.15XG/TR
SGM2051-1.2XG/TR
SGM2051-1.8XG/TR
SGM2051-2.8XG/TR
SGM2051-3.0XG/TR
SGM2051-3.3XG/TR
SGM2051-ADJXG/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
-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℃
XXX
CZ6
XXX
CZ7
XXX
CZ8
XXX
CZ9
XXX
CZB
XXX
ORD
XXX
CZC
SGM2051-1.2
SGM2051-1.8
SGM2051-2.8
SGM2051-3.0
SGM2051-3.3
WLCSP-0.8×1.2-6B-A
WLCSP-0.8×1.2-6B-A
WLCSP-0.8×1.2-6B-A
WLCSP-0.8×1.2-6B-A
WLCSP-0.8×1.2-6B-A
XXX
CZD
XXX
CZE
XXX
CZF
XXX
R00
XXX
R01
SGM2051-ADJ WLCSP-0.8×1.2-6B-A
MARKING INFORMATION
NOTE: X = Date Code. XX = Trace Code.
Date Code - Year
Trace Code
X X X
Y Y Y
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
NOVEMBER 2022
2
1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
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.
IN, BIAS, EN to GND........................................... -0.3V to 6V
OUT, SNS, ADJ to GND ............ -0.3V to Min(VIN + 0.3V, 6V)
Package Thermal Resistance
WLCSP-0.8×1.2-6B-A, θJA....................................... 177℃/W
WLCSP-0.8×1.2-6B-A, θJB......................................... 32℃/W
WLCSP-0.8×1.2-6B-A, θJC......................................... 48℃/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.............................................................................5000V
CDM ............................................................................1000V
RECOMMENDED OPERATING CONDITIONS
Input Supply Voltage Range, VIN ........................0.5V to 5.5V
Bias Supply Voltage Range, VBIAS ......................2.5V to 5.5V
Bias Effective Capacitance, CBIAS ....................... 0.1μF (MIN)
Input Effective Capacitance, CIN ......................... 2.2μF (MIN)
Output Effective Capacitance, COUT.................4.7μF to 22μF
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
NOVEMBER 2022
3
1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
PIN CONFIGURATIONS
SGM2051-Fixed Output
(TOP VIEW)
SGM2051-ADJ
(TOP VIEW)
A
B
C
A
B
C
VOUT
SNS
VIN
EN
VOUT
ADJ
VIN
EN
GND
BIAS
GND
BIAS
1
2
1
2
WLCSP-0.8×1.2-6B-A
WLCSP-0.8×1.2-6B-A
PIN DESCRIPTION
PIN
A1
NAME
VOUT
VIN
FUNCTION
Regulator Output Pin. It is recommended to use an output capacitor with effective capacitance
in the range of 4.7μF to 22μF.
A2
Input Voltage Supply Pin.
Output Voltage Sense Input Pin (fixed voltage version only). Connect this pin to the load side of
the output trace only in the fixed voltage version.
SNS
B1
B2
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.
Enable Pin. Drive EN high to turn on the regulator. Drive EN low to turn off the regulator. The
EN pin has an internal 0.26μA pull-down current source which ensures that the device is turned
off when the EN pin is floated.
ADJ
EN
C1
C2
GND
BIAS
Ground.
Bias Supply Voltage Pin for Internal Control Circuits. This pin is monitored by internal
under-voltage lockout circuit.
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
4
1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
ELECTRICAL CHARACTERISTICS
(VIN = VOUT(NOM) + 0.3V, VBIAS = 2.5V or (VOUT(NOM) + 1.6V) (whichever is greater), VEN = 1V, IOUT = 1mA, CIN = COUT = 10μF and
CBIAS = 2.2μF, TJ = -40℃ to +125℃, typical values are at TJ = +25℃, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VOUT(NOM)
+ VDROP_VIN
(VOUT(NOM)
1.6) ≥ 2.5
Input Supply Voltage Range
Bias Supply Voltage Range
VIN
5.5
V
+
VBIAS
5.5
2
V
VBIAS rising
Hysteresis
1.65
0.3
V
V
Under-Voltage Lockout
Feedback Voltage
VUVLO
0.496
0.492
0.5
0.504
0.508
SGM2051-ADJ, TJ = +25℃
VFB
V
SGM2051-ADJ
VIN = (VOUT(NOM) + 0.3V) to
5.5V, VBIAS = 2.5V or
(VOUT(NOM) + 1.6V) to 5.5V,
IOUT = 1mA to 1.2A
-0.8
-1.6
0.8
1.6
TJ = +25℃
Output Voltage Accuracy
VIN Line Regulation
VOUT
%
TJ = -40℃ to +125℃
VIN = (VOUT(NOM) + 0.3V) to 5.5V, 0.5V ≤ VOUT(NOM) ≤ 1.8V
VIN = (VOUT(NOM) + 0.3V) to 5.5V, 1.8V < VOUT(NOM) ≤ 3.3V
0.001
0.004
0.03
0.05
∆VOUT
∆VIN × VOUT
%/V
%/V
VBIAS = 2.5V or (VOUT(NOM) + 1.6V) to 5.5V,
0.5V ≤ VOUT(NOM) ≤ 1.8V
VBIAS = (VOUT(NOM) + 1.6V) to 5.5V,
1.8V < VOUT(NOM) ≤ 3.3V
0.02
0.07
0.1
∆VOUT
∆VBIAS × VOUT
VBIAS Line Regulation
0.28
Load Regulation
ΔVOUT
IOUT = 1mA to 1.2A
IOUT = 1.2A
1
6
mV
mV
V
VIN Dropout Voltage (1)
VBIAS Dropout Voltage (2) (3)
Output Current Limit
VDROP_VIN
60
104
1.4
VDROP_BIAS IOUT = 1.2A, VIN = VBIAS
1.1
2.2
1.1
ILIMIT
ISHORT
IADJ
VOUT = 90% × VOUT(NOM)
VOUT = 0V
1.35
-10
A
Short Current Limit
A
ADJ Pin Operating Current
BIAS Pin Quiescent Current
VIN Pin Quiescent Current
BIAS Pin Shutdown Current
10
135
100
1
nA
μA
μA
μA
IBIAS
VBIAS = 5.5V
96
35
IIN
VIN = 5.5V, IOUT = 0mA
VEN = 0V
IBIAS(DIS)
0.5
8
V
EN = 0V, TJ = +25℃
VIN Pin Shutdown Current
EN Input Voltage
IVIN(DIS)
μA
VEN = 0V
VIH
VIL
IEN
Logic high
1
V
V
Logic low
0.4
1
EN Pull-Down Current
Turn-On Time
VEN = 5.5V, VBIAS = 5.5V
0.26
150
μA
VOUT(NOM) = 1.1V, from assertion of VEN to VOUT = 98% ×
VOUT (NOM)
VIN to VOUT, f = 1kHz, VOUT(NOM) = 1.1V,
IOUT = 150mA, VIN ≥ 1.6V
VBIAS to VOUT, f = 1kHz, VOUT(NOM) = 1.1V,
IOUT = 150mA, VIN ≥ 1.6V
tON
μs
dB
dB
VIN Power Supply Rejection Ratio
VBIAS Power Supply Rejection Ratio
70
80
PSRR
Output Voltage Noise
en
VOUT(NOM) = 1.1V, VIN = 1.6V, f = 10Hz to 100kHz
VEN = 0V, VOUT = 0.5V
29
80
μVRMS
Ω
Output Discharge Resistance
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
RDIS
50
120
TSHDN
ΔTSHDN
160
20
℃
℃
NOTES:
1. VIN dropout voltage is defined as the difference between VIN and VOUT when VOUT falls to 95% × VOUT(NOM)
2. VBIAS dropout voltage refers to VBIAS - VOUT when the VIN and BIAS pins are connected together and VOUT falls to 95% × VOUT(NOM)
3. For output voltages lower than 1.6V, VBIAS dropout voltage is not applicable because the minimum bias supply voltage is 2.5V.
.
.
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
5
1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
TYPICAL PERFORMANCE CHARACTERISTICS
TJ = +25℃, VIN = 1.4V, VEN = VBIAS = 2.7V, VOUT(NOM) = 1.1V, CIN = COUT = 10μF, CBIAS = 2.2μF, unless otherwise noted.
Turn-On Speed with EN Pin
Turn-Off Speed with EN Pin
VEN
VEN
VOUT
VOUT
IOUT = 0mA
IOUT = 0mA
Time (100μs/div)
Time (500μs/div)
VIN Line Transient Response
VBIAS Line Transient Response
VBIAS
VIN
VOUT
VOUT
VIN = 1.45V to 2.45V, IOUT = 1A
VBIAS = 2.75V to 3.75V, IOUT = 1A
Time (200μs/div)
Time (200μs/div)
Load Transient Response
Load Transient Response
IOUT
IOUT
VOUT
VOUT
IOUT = 10mA to 1200mA
IOUT = 1mA to 500mA
Time (50μs/div)
Time (50μs/div)
SG Micro Corp
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1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, VIN = 1.4V, VEN = VBIAS = 2.7V, VOUT(NOM) = 1.1V, CIN = COUT = 10μF, CBIAS = 2.2μF, unless otherwise noted.
VBIAS Power-Up/Power-Down Output Waveform
VBIAS Power Ramp-Up/Ramp-Down Output Waveform
VBIAS
VBIAS
VOUT
VOUT
IOUT = 150mA
IOUT = 150mA
Time (2ms/div)
Time (2ms/div)
VIN Power Supply Rejection Ratio vs. Frequency
VBIAS Power Supply Rejection Ratio vs. Frequency
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
COUT = 10μF
COUT = 4.7μF
COUT = 10μF
COUT = 4.7μF
VIN = 1.6V, IOUT = 150mA
VIN = 1.6V, IOUT = 150mA
0.01
0.1
1
10
100
1000 10000
0.01
0.1
1
10
100
1000 10000
Frequency (kHz)
Frequency (kHz)
Output Noise Density vs. Frequency
VIN Dropout Voltage vs. Temperature
10
1
100
90
80
70
60
50
40
0.1
0.01
VIN = 1.6V, IOUT = 1mA
10 100
IOUT = 1.2A
0.001
0.01
0.1
1
-50 -25
0
25
50
75 100 125 150
Temperature (℃)
Frequency (kHz)
SG Micro Corp
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NOVEMBER 2022
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1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
TJ = +25℃, VIN = 1.4V, VEN = VBIAS = 2.7V, VOUT(NOM) = 1.1V, CIN = COUT = 10μF, CBIAS = 2.2μF, unless otherwise noted.
Output Voltage vs. Temperature
Output Voltage vs. Temperature
0.5006
0.5004
0.5002
0.5
3.304
3.302
3.3
3.298
3.296
3.294
3.292
0.4998
0.4996
0.4994
VOUT(NOM) = 3.3V, IOUT = 1mA
VOUT(NOM) = 0.5V, IOUT = 1mA
-50 -25
0
25
50
75 100 125 150
-50 -25
0
25
50
75 100 125 150
Temperature (℃)
Temperature (℃)
VIN Dropout Voltage vs. Output Current
TJ = -40℃
TJ = +25℃
TJ = +85℃
TJ = +125℃
VBIAS Dropout Voltage vs. Output Current
TJ = -40℃
TJ = +25℃
TJ = +85℃
TJ = +125℃
120
100
80
60
40
20
0
1600
1400
1200
1000
800
600
400
0
200
400
600
800
1000 1200
0
200
400
600
800
1000 1200
Output Current (mA)
Output Current (mA)
BIAS Pin Operating Current vs. Output Current
BIAS Pin Operating Current vs. BIAS Voltage
600
500
400
300
200
100
0
93.0
92.5
92.0
91.5
91.0
90.5
90.0
IOUT = 1mA
5.5 6
0
200
400
600
800
1000 1200
2
2.5
3
3.5
4
4.5
5
BIAS Voltage (V)
Output Current (mA)
SG Micro Corp
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NOVEMBER 2022
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1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
FUNCTIONAL BLOCK DIAGRAMS
Current
Limit
VIN
VOUT
BIAS
Voltage
Reference
+
-
80Ω
UVLO
SNS
Thermal
Shutdown
Control
Logic
EN
IEN
GND
SGM2051-Fixed Output
Figure 2. Fixed Output Voltage Internal Block Diagram
Current
Limit
VIN
VOUT
BIAS
Voltage
Reference
0.5V
+
-
80Ω
UVLO
ADJ
Thermal
Shutdown
Control
Logic
EN
IEN
GND
SGM2051-ADJ
Figure 3. Adjustable Output Voltage Internal Block Diagram
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1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
APPLICATION INFORMATION
The SGM2051 is a low noise, fast transient response
high performance LDO. It consumes only 96μA (TYP)
quiescent current and provides 1.2A output current.
The SGM2051 provides the protection function for
output overload, output short-circuit condition and
overheating.
VIN to VOUT pins. In this state, the automatic discharge
transistor is active to discharge the output voltage
through an 80Ω (TYP) resistor.
When the EN pin voltage is higher than 1V, the device
is in active state. The output voltage is regulated to the
expected value and the automatic discharge transistor
is turned off.
The SGM2051 is suitable for application which has
noise sensitive circuit such as battery-powered
equipment and smartphones.
The EN pin is pulled down by internal 0.26μA (TYP)
current source when the EN pin is floated. This current
source will ensure the SGM2051 in shutdown state and
reduce the power dissipation in system.
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. 4.7μF or greater X7R or
X5R ceramic capacitor is selected to get good dynamic
performance.
Adjustable Regulator
The output voltage of the SGM2051 can be adjusted
from 0.5V to 3.3V. The ADJ pin will be connected to two
external resistors as shown in Figure 4, the output
voltage is determined by the following equation:
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.
R
VOUT = VFB × 1+
(1)
1
R2
where:
VOUT is output voltage and VFB is the internal voltage
reference, VFB = 0.5V.
Output Capacitor Selection (COUT
)
One parallel capacitor (CFF) with R1 can be used to
improve the feedback loop stability and PSRR,
increase the transient response and reduce the output
noise. Use R2 ≤ 10kΩ with CFF in the range of 1nF to
100nF (effective capacitance), or choose R2 ≤ 1.5kΩ
and the value of CFF is unlimited.
The output capacitor should be located as close as
possible to the VOUT pin. A 10μF or greater X7R or
X5R ceramic capacitor is selected to get good dynamic
performance. The minimum effective capacitance of COUT
that SGM2051 can remain stable is 4.7μF. For ceramic
capacitor, temperature, DC bias and package size will
change the effective capacitance, so enough margin of
A2
A1
VIN
VIN
VOUT
VOUT
C
OUT must be considered in design. Larger capacitance
CIN
10μF
CFF
10nF
COUT
10μF
and lower ESR COUT will help improve the load transient
response and increase the high frequency PSRR.
SGM2051-
R1
R2
B2
ADJ
Enable
EN
B1
C
ADJ
R
C2
Enable Operation
VBIAS
BIAS
CBIAS
2.2μF
GND
The SGM2051 uses the EN pin to enable/disable the
device and to deactivate/activate the output automatic
discharge function.
C1
Figure 4. Adjustable Output Voltage Application
When the EN pin voltage is lower than 0.4V, the device
is in shutdown state. There is no current flowing from
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1.2A, Ultra-High PSRR, Fast Load Transient,
Bias Rail CMOS Voltage Regulator
SGM2051
APPLICATION INFORMATION (continued)
turns the pass element off. The power dissipation
Dropout Voltage
needs to be less than 6W when thermal protection
occurs. The power dissipation must be less than 6W for
the device protection. For example, when output is
short to GND, the short current is about 2A and the
input voltage must be less than 3V, otherwise the
SGM2051 may be damaged.
The SGM2051 specifies two dropout voltages because
there are two power supplies VIN and VBIAS and one
VOUT regulator output. VIN dropout voltage is defined as
the difference between VIN and VOUT when VOUT falls 5%
below VOUT(NOM). When the output voltage is lower than
1.6V, VBIAS dropout voltage is not applicable because
the minimum bias supply voltage is 2.5V.
Therefore, thermal analysis for the chosen application
is important to guarantee reliable performance over all
conditions. To guarantee reliable operation, the junction
temperature of the SGM2051 must not exceed 125℃.
When VOUT begins to decrease and VBIAS is high
enough, the VIN dropout voltage equals to VIN - VOUT
.
VBIAS dropout voltage refers to VBIAS - VOUT when the
VIN and BIAS pins are connected together and VOUT
begins to decrease.
In order to calculate the maximum power that the
device can dissipate, the following formula is used:
PD(MAX) = (125℃ - TA)/θJA
(2)
Output Current Limit and Short-Circuit
Protection
When overload events happen, the output current is
internally limited to 2.2A (TYP). When the VOUT pin is
shorted to ground, the short-circuit protection will limit
the output current to 1.1A (TYP).
where TA is the ambient temperature, and θJA is the
junction-to-ambient thermal resistance.
Negatively Biased Output
When the output is negative voltage, the chip may not
start-up due to parasitic effects. Ensure that the output
is greater than -0.3V under all conditions. The load is
too high can make VOUT < -0.3V, a Schottky diode can
be added between the VOUT pin and GND pin.
Thermal Shutdown Protection
The SGM2051 can detect the temperature of die. When
the die temperature exceeds the threshold value of
thermal shutdown, the SGM2051 will be in shutdown
state and it will remain in this state until the die
Reverse Current Protection
temperature decreases to +140℃.
The NMOS power transistor has an inherent body
diode, this body diode will be forward biased when
VOUT > VIN. When VOUT > VIN, the reverse current
flowing from the VOUT pin to the VIN pin will damage
the SGM2051. If VOUT > (VIN + 0.3V) is expected in the
application, one external Schottky diode will be added
between the VOUT pin and VIN pin to protect the
SGM2051.
Power Dissipation (PD)
Thermal protection limits power dissipation in the
SGM2051. When power dissipation on pass element
(PD = (VIN - VOUT) × IOUT) is too much that raise the
operation junction temperature exceeds +160℃, the
OTP circuit starts the thermal shutdown function and
REVISION HISTORY
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
NOVEMBER 2022 ‒ REV.A to REV.A.1
Page
Updated PACKAGE/ORDERING INFORMATION section...................................................................................................................................2
Updated APPLICATION INFORMATION section...............................................................................................................................................11
Changes from Original (JANUARY 2022) to REV.A
Page
Changed from product preview to production data.............................................................................................................................................All
SG Micro Corp
www.sg-micro.com
NOVEMBER 2022
11
PACKAGE INFORMATION
PACKAGE OUTLINE DIMENSIONS
WLCSP-0.8×1.2-6B-A
A1 CORNER
0.22
0.20
6 × Φ
0.4
0.4
RECOMMENDED LAND PATTERN
TOP VIEW
0.800± 0.015
6 × Φ0.260± 0.020
2
1
A
B
C
0.4
0.025± 0.005
0.325± 0.025
0.550± 0.050
0.200± 0.020
0.4
BOTTOM VIEW
SIDE VIEW
NOTE: All linear dimensions are in millimeters.
SG Micro Corp
TX00169.000
www.sg-micro.com
PACKAGE INFORMATION
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
P2
P0
W
Q2
Q4
Q2
Q4
Q2
Q4
Q1
Q3
Q1
Q3
Q1
Q3
B0
Reel Diameter
P1
A0
K0
Reel Width (W1)
DIRECTION OF FEED
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF TAPE AND REEL
Reel Width
Reel
Diameter
A0
B0
K0
P0
P1
P2
W
Pin1
Package Type
W1
(mm)
(mm) (mm) (mm) (mm) (mm) (mm) (mm) Quadrant
WLCSP-0.8×1.2-6B-A
7″
9.0
0.90
1.32
0.68
4.0
4.0
2.0
8.0
Q1
SG Micro Corp
TX10000.000
www.sg-micro.com
PACKAGE INFORMATION
CARTON BOX DIMENSIONS
NOTE: The picture is only for reference. Please make the object as the standard.
KEY PARAMETER LIST OF CARTON BOX
Length
(mm)
Width
(mm)
Height
(mm)
Reel Type
Pizza/Carton
7″ (Option)
7″
368
442
227
410
224
224
8
18
SG Micro Corp
www.sg-micro.com
TX20000.000
相关型号：
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