© Semiconductor Components Industries, LLC, 2020
May, 2020 − Rev. 0
1Publication Order Number:
LM1117/D
800 mA Low-Dropout Linear
Regulator
LM1117
The LM1117 is a low dropout voltage regulator with a dropout of
1.2 V at 800 mA of load current. The LM1117 is available in an
adjustable version, which can set the output voltage from 1.25 to
13.8 V with only two external resistors. In addition, it is available in
five fixed voltages, 1.8 V, 2.5 V, 3.3 V, and 5 V.
The LM1117 offers current limiting and thermal shutdown. Its
circuit is trimmed to assure output voltage accuracy to within +/−1%.
Features
•Available in 1.8 V, 2.5 V, 3.3 V, 5.0 V, and Adjustable Versions
•Space−Saving SOT−223 Package
•Current Limiting and Thermal Protection
•Output Current 800 mA
•Line Regulation 0.2% (Maximum)
•Load Regulation 0.4% (Maximum)
•Temperature Range: 0°C to 125°C
•These are Pb-Free Devices
Applications
•Post Regulator for Switching DC−DC Converter
•High Efficiency Linear Regulators
•Battery Chargers
•Portable Instrumentation
•Active SCSI Termination Regulation
10
mF
1
2Output
10
mF
3
Input LM1117
XTXX
++
Figure 1. Fixed
Output Regulator
10
mF
1
2Output
10
mF
3
Input LM1117
XTA
++
Figure 2. Adjustable
Output Regulator
22
mF
1
2
10
mF
3LM1117
XT285
++
110 W
110 W
110 W
110 W
4.75 V
to
5.25 V
+
18 to 27
Lines
Figure 3. Active SCSI Bus Terminator
TYPICAL APPLICATIONS
SOT−223
CASE 318H
Pin: 1. Adjust/Ground
2. Output
3. Input
Heatsink tab is connected to Pin 2.
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
ORDERING INFORMATION
See general marking information in the device marking
section on page 11 of this data sheet.
DEVICE MARKING INFORMATION
123
Tab
PIN CONFIGURATION
SOT−223
(Top View)
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MAXIMUM RATINGS
Rating Symbol Value Unit
Input Voltage (Note 1) Vin 20 V
Output Short Circuit Duration (Notes 2 and 3) −Infinite −
Power Dissipation and Thermal Characteristics
Case 318H (SOT−223)
Power Dissipation (Note 2)
Thermal Resistance, Junction−to−Ambient, Minimum Size Pad
Thermal Resistance, Junction−to−Case
PD
RqJA
RqJC
Internally Limited
160
15
W
°C/W
°C/W
Maximum Die Junction Temperature Range TJ−55 to 150 °C
Storage Temperature Range Tstg −65 to 150 °C
Operating Ambient Temperature Range TA0 to +125 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. This device series contains ESD protection and exceeds the following tests:
Human Body Model (HBM), Class 2, 2000 V
Machine Model (MM), Class B, 200 V
Charge Device Model (CDM), Class IV, 2000 V.
2. Internal thermal shutdown protection limits the die temperature to approximately 175°C. Proper heatsinking is required to prevent activation.
The maximum package power dissipation is:
PD+TJ(max) *TA
RqJA
3. The regulator output current must not exceed 1.0 A with Vin greater than 12 V.
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ELECTRICAL CHARACTERISTICS
(Cin = 10 mF, Cout = 10 mF, for typical value TA = 25°C, for min and max values TA is the operating ambient temperature range that applies
unless otherwise noted.) (Note 4)
Characteristic Symbol Min Typ Max Unit
Reference Voltage, Adjustable Output Devices
(Vin–Vout = 2.0 V, Iout = 10 mA, TA = 25°C)
(Vin–Vout = 1.4 V to 10 V, Iout = 10 mA to 800 mA) (Note 4)
Vref
1.238
1.225
1.25
−
1.262
1.270
V
Output Voltage, Fixed Output Devices
1.8 V (Vin = 3.8 V, Iout = 10 mA, TA = 25 °C)
(Vin = 3.2 V to 11.8 V, Iout = 0 mA to 800 mA) (Note 4)
2.5 V (Vin = 4.5 V, Iout = 10 mA, TA = 25 °C)
(Vin = 3.9 V to 10 V, Iout = 0 mA to 800 mA,) (Note 4)
3.3 V (Vin = 5.3 V, Iout = 10 mA, TA = 25 °C)
(Vin = 4.75 V to 10 V, Iout = 0 mA to 800 mA) (Note 4)
5.0 V (Vin = 7.0 V, Iout = 10 mA, TA = 25 °C)
(Vin = 6.5 V to 12 V, Iout = 0 mA to 800 mA) (Note 4)
Vout
1.782
1.755
2.475
2.450
3.267
3.235
4.950
4.900
1.800
−
2.500
−
3.300
−
5.000
−
1.818
1.845
2.525
2.550
3.333
3.365
5.050
5.100
V
Line Regulation (Note 5) Adjustable (Vin = 2.75 V to 16.25 V, Iout = 10 mA) Regline −0.04 0.1 %
1.8 V (Vin = 3.2 V to 11.8 V, Iout = 0 mA)
2.5 V (Vin = 3.9 V to 10 V, Iout = 0 mA)
3.3 V (Vin = 4.75 V to 15 V, Iout = 0 mA)
5.0 V (Vin = 6.5 V to 15 V, Iout = 0 mA)
−
−
−
−
0.4
0.5
0.8
0.9
1.0
2.5
4.5
6.0
mV
Load Regulation (Note 5) Adjustable (Iout = 10 mA to 800 mA, Vin = 4.25 V) Regline −0.2 0.4 %
1.8 V (Iout = 0 mA to 800 mA, Vin = 3.2 V)
2.5 V (Iout = 0 mA to 800 mA, Vin = 3.9 V)
3.3 V (Iout = 0 mA to 800 mA, Vin = 4.75 V)
5.0 V (Iout = 0 mA to 800 mA, Vin = 6.5 V)
−
−
−
−
2.6
3.3
4.3
6.7
6.0
7.5
10
15
mV
Dropout Voltage (Measured at Vout − 100 mV)
(Iout = 100 mA)
(Iout = 500 mA)
(Iout = 800 mA)
Vin−Vout
−
−
−
0.95
1.01
1.07
1.10
1.15
1.20
V
Output Current Limit (Vin−Vout = 5.0 V, TA = 25°C, Note 6) Iout 1000 1500 2200 mA
Minimum Required Load Current for Regulation, Adjustable Output Devices
(Vin = 15 V)
IL(min) −0.8 5.0 mA
Quiescent Current
1.8 V (Vin = 11.8 V)
2.5 V (Vin = 10 V)
3.3 V (Vin = 15 V)
5.0 V (Vin = 15 V)
IQ
−
−
−
−
4.2
5.2
6.0
6.0
10
10
10
10
mA
Thermal Regulation (TA = 25°C, 30 ms Pulse) −0.01 0.1 %/W
Ripple Rejection (Vin−Vout = 6.4 V, Iout = 500 mA, 10 Vpp 120 Hz Sinewave)
Adjustable
1.8 V
2.5 V
3.3 V
5.0 V
RR
67
66
62
60
57
73
70
68
64
61
−
−
−
−
−
dB
Adjustment Pin Current (Vin = 11.25 V, Iout = 800 mA) Iadj −52 120 mA
Adjust Pin Current Change
(Vin−Vout = 1.4 V to 10 V, Iout = 10 mA to 800 mA)
DIadj −0.4 5.0 mA
Temperature Stability ST−0.5 −%
Long Term Stability (TA = 25°C, 1000 Hrs End Point Measurement) St−0.3 −%
RMS Output Noise (f = 10 Hz to 10 kHz) N−0.003 −%Vout
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
4. LM1117: Tlow = 0°C , Thigh = 125°C
5. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.
6. The regulator output current must not exceed 1.0 A with Vin greater than 12 V.
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Vin − Vout, DROPOUT VOLTAGE (V)
TA, AMBIENT TEMPERATURE (°C)
Iadj, ADJUST PIN CURRENT (mA)
Iout = 10 mA
0
20
40
60
80
100
Figure 4. Output Voltage Change
vs. Temperature
Figure 5. Dropout Voltage
vs. Output Current
Figure 6. Output Short Circuit Current
vs. Differential Voltage
Figure 7. Output Short Circuit Current
vs. Temperature
Figure 8. Adjust Pin Current
vs. Temperature
Figure 9. Quiescent Current Change
vs. Temperature
0
0.5
1.0
1.5
2.0
0 2 4 6 8 101214161820
Load pulsed at 1.0% duty cycle
Vin − Vout, VOLTAGE DIFFERENTIAL (V)
Iout, OUTPUT CURRENT (A)
TJ = 25°C
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0 200 400 600 800 100
0
Load pulsed at 1.0% duty cycle
Iout, OUTPUT CURRENT (mA)
TJ = −40°C
TJ = 25°C
TJ = 125°C
Vout, OUTPUT VOLTAGE CHANGE (%)
−2.0
−1.5
−1.0
−0.5
0
0.5
1.0
1.5
2.0
−50 −25 0 25 50 75 100 125 150
TA, AMBIENT TEMPERATURE (°C)
Vin = Vout + 3.0 V
Iout = 10 mA
Adj, 1.5 V,
1.8 V, 2.0 V,
2.5 V
2.85 V, 3.3 V,
5.0 V, 12.0 V
1.0
1.2
1.4
1.6
1.8
2.0
−50 −25 0 25 50 75 100 125 150
−20
−15
−10
−5.0
0
5.0
10
−50 −25 0 25 50 75 100 125 150
TA, AMBIENT TEMPERATURE (°C)
Iout, OUTPUT CURRENT (A)
Vin = 5.0 V
Load pulsed at 1.0% duty cycle
TA, AMBIENT TEMPERATURE (°C)
IQ, QUIESCENT CURRENT CHANGE (%)
−50 −25 0 25 50 75 100 125 150
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0
20
40
60
80
100
10 100 1.0 k 10 k 100 k
0
20
40
60
80
100
0 200 400 600 800 1000
Iout, OUTPUT CURRENT (mA)
RR, RIPPLE REJECTION (dB)
fripple = 20 kHz
Vripple v 0.5 VP−P
Vout = 5.0 V
Vin − Vout = 3.0 V
Cout = 10 mF
Cadj = 25 mF
TA = 25°C
fripple, RIPPLE FREQUENCY (Hz)
RR, RIPPLE REJECTION (dB)
Vout = 5.0 V
Vin − Vout = 3.0 V
Iout = 0.5 A
Cout = 10 mF
Cadj = 25 mF, f > 60 Hz
Vripple v 3.0 VP−P Vripple v 0.5 VP−P
Vin − Vout w 3.0 V
Figure 10. LM1117XTA Ripple Rejection
vs. Output Current
Figure 11. LM1117XTA Ripple Rejection
vs. Frequency
Figure 12. Output Capacitance vs. ESR Figure 13. Typical ESR vs. Output Current
fripple = 120 Hz
Vripple v 3.0 VP−P
Vin − Vout w Vdropout
Cadj = 200 mF, f v 60 Hz
TA = 25°C
0.1
1
10
100
0.001 0.01 0.1 1 10
ESR, EQUIVALENT SERIES RESISTANCE (W)
OUTPUT CAPACITANCE (mF)
Vin = 3.0 V
Vout = 1.25 V
Iload = 5 mA − 1 A
Cin = 10 mF MLCC
TJ = 25°C
Region of Instability
Region of Stability
0.01
0.1
1
10
0 100 500 900 1000
Iout, OUTPUT CURRENT (mA)
ESR, EQUIVALENT SERIES RESISTANCE (W)
Vin = 3.0 V
Vout = 1.25 V
Cin = 10 mF MLCC
Cout = 10 mF
TJ = 25°C
Region of Instability
Region of Stability
200 600300 700400 800
0
50E−9
100E−9
150E−9
200E−9
250E−9
10 100 1.0 k 10 k 100 k
FREQUENCY (Hz)
V/sqrt (Hz)
Cin = 10 mF Tantalum
Cout = 10 mF Tantalum
Vin − Vout = 3.0 V
Figure 14. Output Spectral Noise Density vs.
Frequency, Vout = 1V5
300E−9
350E−9
1 A
0.5 A
0.1 A
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t, TIME (ms)
−20
0
7.5
6.5
0 40 80 120 160
OUTPUT VOLTAGE
DEVIATION (mV)
INPUT
VOLTAGE (V)
200
20
Figure 15. LM1117XT285
Line Transient Response
Figure 16. LM1117XT285
Load Transient Response
Figure 17. LM1117XT50
Line Transient Response
Figure 18. LM1117XT50
Load Transient Response
Cin = 10 mF
Cout = 10 mF
Vin = 6.5 V
Preload = 0.1 A
TA = 25°C
t, TIME (ms)
0
0.5
0
0.1
−0.1
0 40 80 120 160
LOAD CURRENT
CHANGE (A)
OUTPUT VOLTAGE
DEVIATION (V)
20
0
Cin = 10 mF
Cout = 10 mF
Vin = 4.5 V
Preload = 0.1 A
TA = 25°C
t, TIME (ms)
0
0.5
0
0.1
−0.1
0 40 80 120 160
LOAD CURRENT
CHANGE (A)
OUTPUT VOLTAGE
DEVIATION (V)
20
0
t, TIME (ms)
−20
0
5.25
4.25
0 40 80 120 160
OUTPUT VOLTAGE
DEVIATION (mV)
INPUT
VOLTAGE (V)
200
Cin = 1.0 mF
Cout = 10 mF
Iout = 0.1 A
TA = 25°C
20
Cin = 1.0 mF
Cout = 10 mF
Iout = 0.1 A
TA = 25°C
Figure 19. LM1117XT12 Line
Transient Response
Figure 20. LM1117XT12 Load
Transient Response
t, TIME (ms)
Cin = 10 mF
Cout = 10 mF
Vin = 13.5 V
Preload = 0.1 A
TA = 25°C
0
0.5
0
0.1
−0.1
0 40 80 120 160 200
LOAD CURRENT
CHANGE (A)
OUTPUT VOLTAGE
DEVIATION (V)
t, TIME (ms)
−20
0
14.5
13.5
0 40 80 120 160
OUTPUT VOLTAGE
DEVIATION (mV)
INPUT
VOLTAGE (V)
200
20
Cin = 1.0 mF
Cout = 10 mF
Iout = 0.1 A
TA = 25°C
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60
80
100
120
140
160
180
0.4
0.6
0.8
1.0
1.2
1.4
1.6
010203025155.0
L, LENGTH OF COPPER (mm)
PD(max) for TA = 50°C
40
50
60
70
80
90
100
010203025155.0
L, LENGTH OF COPPER (mm)
0.6
0.8
1.0
1.2
1.4
1.6
Figure 21. SOT−223 Thermal Resistance and Maximum
Power Dissipation vs. P.C.B. Copper Length
RqJA, THERMAL RESISTANCE,
JUNCTION−TO−AIR (°CW)
PD, MAXIMUM POWER DISSIPATION (W)
RqJA, THERMAL RESISTANCE,
JUNCTION−TO−AIR (°CW)
0.4
Figure 22. DPAK Thermal Resistance and Maximum
Power Dissipation vs. P.C.B. Copper Length
Minimum
Size Pad
PD, MAXIMUM POWER DISSIPATION (W)
L
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
2.0 oz. Copper
RqJA
Minimum
Size Pad
PD(max) for TA = 50°C
L
RqJA
L
L
2.0 oz. Copper
ÎÎÎ
ÎÎÎ
ÎÎÎ
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APPLICATIONS INFORMATION
Introduction
The LM1117 features a significant reduction in dropout
voltage along with enhanced output voltage accuracy and
temperature stability when compared to older industry
standard three−terminal adjustable regulators. These
devices contain output current limiting, safe operating area
compensation and thermal shutdown protection making
them designer friendly for powering numerous consumer
and industrial products. The LM1117 series is pin
compatible with the older LM317 and its derivative device
types.
Output Voltage
The typical application circuits for the fixed and
adjustable output regulators are shown in Figures 23 and 24.
The adjustable devices are floating voltage regulators. They
develop and maintain the nominal 1.25 V reference voltage
between the output and adjust pins. The reference voltage is
programmed to a constant current source by resistor R1, and
this current flows through R2 to ground to set the output
voltage. The programmed current level is usually selected to
be greater than the specified 5.0 mA minimum that is
required for regulation. Since the adjust pin current, Iadj, is
significantly lower and constant with respect to the
programmed load current, it generates a small output
voltage error that can usually be ignored. For the fixed
output devices R1 and R2 are included within the device and
the ground current Ignd, ranges from 3.0 mA to 5.0 mA
depending upon the output voltage.
External Capacitors
Input bypass capacitor Cin may be required for regulator
stability if the device is located more than a few inches from
the power source. This capacitor will reduce the circuit’s
sensitivity when powered from a complex source impedance
and significantly enhance the output transient response. The
input bypass capacitor should be mounted with the shortest
possible track length directly across the regulator’s input
and ground terminals. A 10 mF ceramic or tantalum
capacitor should be adequate for most applications.
Figure 23. Fixed Output Regulator
1
2Output
3
Input LM1117
XTXX
++
Cout
Cin
Ignd
Frequency compensation for the regulator is provided by
capacitor Cout and its use is mandatory to ensure output
stability. A minimum capacitance value of 4.7 mF with an
equivalent series resistance (ESR) that is within the limits of
33 mW (typ) to 2.2 W is required. See Figures 12 and 13. The
capacitor type can be ceramic, tantalum, or aluminum
electrolytic as long as it meets the minimum capacitance
value and ESR limits over the circuit’s entire operating
temperature range. Higher values of output capacitance can
be used to enhance loop stability and transient response with
the additional benefit of reducing output noise.
Figure 24. Adjustable Output Regulator
1
2Output
3
Input LM1117
XTA
++
Cout
Cin
Iadj
R2
+Cadj
Vref R1
Vout +Vref ǒ1)R2
R1Ǔ)Iadj R2
The output ripple will increase linearly for fixed and
adjustable devices as the ratio of output voltage to the
reference voltage increases. For example, with a 12 V
regulator, the output ripple will increase by 12 V/1.25 V or
9.6 and the ripple rejection will decrease by 20 log of this
ratio or 19.6 dB. The loss of ripple rejection can be restored
to the values shown with the addition of bypass capacitor
Cadj, shown in Figure 24. The reactance of Cadj at the ripple
frequency must be less than the resistance of R1. The value
of R1 can be selected to provide the minimum required load
current to maintain regulation and is usually in the range of
100 W to 200 W.
Cadj u1
2pfripple R1
The minimum required capacitance can be calculated
from the above formula. When using the device in an
application that is powered from the AC line via a
transformer and a full wave bridge, the value for Cadj is:
fripple +120 Hz, R1 +120 W, then Cadj u11.1 mF
The value for Cadj is significantly reduced in applications
where the input ripple frequency is high. If used as a post
regulator in a switching converter under the following
conditions:
fripple +50 kHz, R1 +120 W, then Cadj u0.027 mF
Figures 10 and 11 shows the level of ripple rejection that
is obtainable with the adjust pin properly bypassed.
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Protection Diodes
The LM1117 family has two internal low impedance
diode paths that normally do not require protection when
used in the typical regulator applications. The first path
connects between Vout and Vin, and it can withstand a peak
surge current of about 15 A. Normal cycling of Vin cannot
generate a current surge of this magnitude. Only when Vin
is shorted or crowbarred to ground and Cout is greater than
50 mF, it becomes possible for device damage to occur.
Under these conditions, diode D1 is required to protect the
device. The second path connects between Cadj and V
out, and
it can withstand a peak surge current of about 150 mA.
Protection diode D2 is required if the output is shorted or
crowbarred to ground and Cadj is greater than 1.0 mF.
Figure 25. Protection Diode Placement
1
2Output
3
Input LM1117
XTA
++
Cout
Cin
R2
+Cadj
R1
1N4001
D1
D2
1N4001
A combination of protection diodes D1 and D2 may be
required in the event that Vin is shorted to ground and Cadj
is greater than 50 mF. The peak current capability stated for
the internal diodes are for a time of 100 ms with a junction
temperature of 25°C. These values may vary and are to be
used as a general guide.
Load Regulation
The LM1117 series is capable of providing excellent load
regulation; but since these are three terminal devices, only
partial remote load sensing is possible. There are two
conditions that must be met to achieve the maximum
available load regulation performance. The first is that the
top side of programming resistor R1 should be connected as
close to the regulator case as practicable. This will minimize
the voltage drop caused by wiring resistance RW + from
appearing in series with reference voltage that is across R1.
The second condition is that the ground end of R2 should be
connected directly to the load. This allows true Kelvin
sensing where the regulator compensates for the voltage
drop caused by wiring resistance RW −.
Figure 26. Load Sensing
1
2Output
3
Input LM1117
XTA
+
+Cout
Cin R1
Remote
Load
RW+
RW−
R2
Thermal Considerations
This series contains an internal thermal limiting circuit
that is designed to protect the regulator in the event that the
maximum junction temperature is exceeded. When
activated, typically at 175°C, the regulator output switches
off and then back on as the die cools. As a result, if the device
is continuously operated in an overheated condition, the
output will appear to be oscillating. This feature provides
protection from a catastrophic device failure due to
accidental overheating. It is not intended to be used as a
substitute for proper heatsinking. The maximum device
power dissipation can be calculated by:
PD+TJ(max) *TA
RqJA
The devices are available in surface mount SOT−223 and
DPAK packages. Each package has an exposed metal tab
that is specifically designed to reduce the junction to air
thermal resistance, RqJA, by utilizing the printed circuit
board copper as a heat dissipater. Figures 21 and 22 show
typical RqJA values that can be obtained from a square
pattern using economical single sided 2.0 ounce copper
board material. The final product thermal limits should be
tested and quantified in order to insure acceptable
performance and reliability. The actual RqJA can vary
considerably from the graphs shown. This will be due to any
changes made in the copper aspect ratio of the final layout,
adjacent heat sources, and air flow.
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Figure 27. Constant Current Regulator Figure 28. Slow Turn−On Regulator
Figure 29. Regulator with Shutdown Figure 30. Digitally Controlled Regulator
Figure 31. Battery Backed−Up Power Supply Figure 32. Adjusting Output of Fixed
Voltage Regulators
The 50 W resistor that is in series with the ground pin of the
upper regulator level shifts its output 300 mV higher than the
lower regulator. This keeps the lower regulator off until the
input source is removed.
Resistor R2 sets the maximum output voltage. Each
transistor reduces the output voltage when turned on.
1
2
Constant Current
Output
3
Input LM1117
XTA
++
10
mF
Iout +Vref
R)Iadj
10
mF
R
1
2Output
3
Input LM1117
XTA
++
10
mF
10
mF
1N4001
R2
R1
10
mF
50 k
2N2907
1
2Output
3
Input LM1117
XTA
++
10
mF
10
mF
120
2N2222
360
1.0 k
1.0 k
Output Control
On
Off
1
2Output
3
Input LM1117
XTA
++
10
mF
10
mF
R1
2N2222
R2
1
50 W
2Output
3
Input LM1117
XT50
++
10
mF
10
mF
+
RCHG
1
LM1117
XT50
+
10
mF
−
6.6 V
5.3 V AC Line
5.0 V Battery
1
2Output
3
Input LM1117
XT50
++
10
mF
+10
mF
10
mF
2.0 k
5.0 V to
12 V
Vout(Off) +Vref
Output Voltage Control
23
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ORDERING INFORMATION
Device Nominal Output Voltage Package Shipping
†
LM1117MPX−ADJNOPB Adjustable SOT−223
(Pb−Free)
4000 / Tape & Reel
LM1117MPX−18NOPB 1.8 SOT−223
(Pb−Free)
4000 / Tape & Reel
LM1117MPX−25NOPB 2.5 SOT−223
(Pb−Free)
4000 / Tape & Reel
LM1117MPX−33NOPB 3.3 SOT−223
(Pb−Free)
4000 / Tape & Reel
LM1117MPX−50NOPB 5.0 SOT−223
(Pb−Free)
4000 / Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
AYW
117−AG
G
1
SOT−223
CASE 318H
A = Assembly Location
Y = Year
W = Work Week
G= Pb−Free Package
MARKING DIAGRAMS
23
Adjustable 1.8 V 2.5 V 3.3 V 5.0 V
(Note: Microdot may be in either location)
AYW
17−18 G
G
123
AYW
17−25 G
G
123
AYW
17−33 G
G
123
AYW
117−5G
G
123
SOT−223
CASE 318H
ISSUE B
DATE 13 MAY 2020
SCALE 2:1
1
A = Assembly Location
Y = Year
W = Work Week
XXXXX = Specific Device Code
G= Pb−Free Package
GENERIC
MARKING DIAGRAM*
AYW
XXXXXG
G
(Note: Microdot may be in either location)
*This information is generic. Please refer to
device data sheet for actual part marking.
Pb−Free indicator, “G” or microdot “G”, may
or may not be present. Some products may
not follow the Generic Marking.
MECHANICAL CASE OUTLINE
PACKAGE DIMENSIONS
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PAGE 1 OF 1
SOT−223
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