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LM317M, NCV317MA, NCV317M Series

ON Semiconductor

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Datasheet

© Semiconductor Components Industries, LLC, 2014
May, 2019 Rev. 26
1Publication Order Number:
LM317M/D
LM317M, NCV317MA,
NCV317M
500 mA Adjustable Output,
Positive Voltage Regulator
The LM317M is an adjustable threeterminal positive voltage
regulator capable of supplying in excess of 500 mA over an output
voltage range of 1.2 V to 37 V. This voltage regulator is exceptionally
easy to use and requires only two external resistors to set the output
voltage. Further, it employs internal current limiting, thermal
shutdown and safe area compensation, making it essentially blowout
proof.
The LM317M serves a wide variety of applications including local,
oncard regulation. This device also makes an especially simple
adjustable switching regulator, a programmable output regulator, or by
connecting a fixed resistor between the adjustment and output, the
LM317M can be used as a precision current regulator.
Features
Output Current in Excess of 500 mA
Output Adjustable between 1.2 V and 37 V
Internal Thermal Overload Protection
Internal Short Circuit Current Limiting
Output Transistor SafeArea Compensation
Floating Operation for High Voltage Applications
Eliminates Stocking Many Fixed Voltages
NCV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AECQ100
Qualified and PPAP Capable
These are PbFree Devices
Figure 1. Simplified Application
* = Cin is required if regulator is located an appreciable distance from power supply filter.
** = CO is not needed for stability, however, it does improve transient response.
Since IAdj is controlled to less than 100 mA, the error associated with this
term is negligible in most applications.
LM317M
Vin Vout
R1
240
R2
Adjust
IAdj
*
Cin
0.1mF
**
+CO
1.0mF
Vin Vout
Vout +1.25Vǒ1)R2
R1Ǔ)IAdjR2
TO220AB
T SUFFIX
CASE 221AB
123
PIN ASSIGNMENT
1
2
3V
in
Adjust
Vout
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 10 of this data sheet.
123
Heatsink Surface (shown as terminal 4 in
case outline drawing) is connected to Pin 2.
SOT223
ST SUFFIX
CASE 318E
DPAK
DT SUFFIX
CASE 369C
Heatsink surface
connected to Pin 2
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3
4
See general marking information in the device marking
section on page 11 of this data sheet.
DEVICE MARKING INFORMATION
LM317M, NCV317MA, NCV317M
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2
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.)
Rating Symbol Value Unit
InputOutput Voltage Differential VIVO40 Vdc
Power Dissipation (Package Limitation) (Note 1)
Plastic Package, T Suffix, Case 221A
TA = 25°C
Thermal Resistance, JunctiontoAir
Thermal Resistance, JunctiontoCase
Plastic Package, DT Suffix, Case 369C
TA = 25°C
Thermal Resistance, JunctiontoAir
Thermal Resistance, JunctiontoCase
Plastic Package, ST Suffix, Case 318E
TA = 25°C
Thermal Resistance, JunctiontoAir
Thermal Resistance, JunctiontoCase
PD
qJA
qJC
PD
qJA
qJC
PD
qJA
qJC
Internally Limited
70
5.0
Internally Limited
92
5.0
Internally Limited
245
15
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
Maximum Junction Temperature TJMAX +150 °C
Storage Temperature Range Tstg 65 to +150 °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. Figure 25 provides thermal resistance versus PC board pad size.
ELECTRICAL CHARACTERISTICS (VI VO = 5.0 V; IO = 0.1 A, TJ = Tlow to Thigh (Note 2), unless otherwise noted.)
Characteristics Figure Symbol
LM317M/LM317MB/NCV317MB
Unit
Min Typ Max
Line Regulation (Note 3) (TA = 25°C, 3.0 V VI VO 40 V) 3 Regline 0.01 0.04 %/V
Load Regulation (Note 3)
TA = 25°C, 10 mA IO 0.5 A
VO 5.0 V
VO 5.0 V
4 Regload
5.0
0.1
25
0.5
mV
% VO
Adjustment Pin Current 5 IAdj 50 100 mA
Adjustment Pin Current Change
2.5 V VI VO 40 V, 10 mA IL 0.5 A, PD Pmax
3, 4 DIAdj 0.2 5.0 mA
Reference Voltage
3.0 V VI VO 40 V, 10 mA IL 0.5 A, PD Pmax
5 Vref 1.20 1.25 1.30 V
Line Regulation 3.0 V VIVO 40 V (Note 3) 3 Regline 0.02 0.07 %/V
Load Regulation 10 mA IO 0.5 A (Note 3)
VO 5.0 V
VO 5.0 V
4 Regload
20
0.3
70
1.5
mV
% VO
Temperature Stability (Tlow TJ Thigh) 5 TS0.7 % VO
Minimum Load Current to Maintain Regulation (VI VO = 40 V) 5 ILmin 3.5 10 mA
Maximum Output Current
VI VO 15 V, PD Pmax
VI VO = 40 V, PD Pmax, TA = 25°C
5 Imax 0.5
0.15
0.9
0.25
A
RMS Noise, % of VO (TA = 25°C, 10 Hz f 10 kHz) N0.003 % VO
Ripple Rejection, VO = 10 V, f = 120 Hz (Note 4)
Without CAdj
CAdj = 10 mF
6 RR
66
65
80
dB
Thermal Shutdown (Note 5) − − 180 °C
LongTerm Stability, TJ = Thigh (Note 6)
TA= 25°C for Endpoint Measurements
5 S 0.3 1.0 %/1.0
kHrs.
2. Tlow to Thigh = 0° to +125°C for LM317M Tlow to Thigh = 40° to +125°C for LM317MB, NCV317MB.
3. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
4. CAdj, when used, is connected between the adjustment pin and ground.
5. Thermal characteristics are not subject to production test.
6. Since LongTerm Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average
stability from lottolot.
LM317M, NCV317MA, NCV317M
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ELECTRICAL CHARACTERISTICS (VI VO = 5.0 V; IO = 0.1 A, TJ = Tlow to Thigh (Note 7), unless otherwise noted.)
Characteristics Figure Symbol
LM317MA/LM317MAB/NCV317MAB
Unit
Min Typ Max
Line Regulation (Note 8) (TA = 25°C, 3.0 V VI VO 40 V) 3 Regline 0.01 0.04 %/V
Load Regulation (Note 8)
TA = 25°C, 10 mA IO 0.5 A
VO 5.0 V
VO 5.0 V
4 Regload
5.0
0.1
25
0.5
mV
% VO
Adjustment Pin Current 5 IAdj 50 100 mA
Adjustment Pin Current Change
2.5 V VI VO 40 V, 10 mA IL 0.5 A, PD Pmax
3, 4 DIAdj 0.2 5.0 mA
Reference Voltage
3.0 V VI VO 40 V, 10 mA IL 0.5 A, PD Pmax
5 Vref 1.225 1.250 1.275 V
Line Regulation (Note 8)
3.0 V VIVO 40 V
3 Regline 0.02 0.07 %/V
Load Regulation (Note 8)
10 mA IO 0.5 A
VO 5.0 V
VO 5.0 V
4 Regload
20
0.3
70
1.5
mV
% VO
Temperature Stability (Tlow TJ Thigh) 5 TS0.7 % VO
Minimum Load Current to Maintain Regulation (VI VO = 40 V) 5 ILmin 3.5 10 mA
Maximum Output Current
VI VO 15 V, PD Pmax
VI VO = 40 V, PD Pmax, TA = 25°C
5 Imax 0.5
0.15
0.9
0.25
A
RMS Noise, % of VO (TA = 25°C, 10 Hz f 10 kHz) N % VO
Ripple Rejection, VO = 10 V, f = 120 Hz (Note 9)
Without CAdj
CAdj = 10 mF
6 RR
66
65
80
dB
Thermal Shutdown (Note 10) − − 180 °C
LongTerm Stability, TJ = Thigh (Note 11)
TA= 25°C for Endpoint Measurements
5 S 0.3 1.0 %/1.0
kHrs.
7. Tlow to Thigh = 0° to +125°C for LM317MA Tlow to Thigh = 40° to +125°C for LM317MAB, NCV317MAB.
8. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
9. CAdj, when used, is connected between the adjustment pin and ground.
10.Thermal characteristics are not subject to production test.
11. Since LongTerm Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average
stability from lottolot.
LM317M, NCV317MA, NCV317M
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Figure 2. Representative Schematic Diagram
18k
6.8V
6.8V
350
300 300 300 3.0k 300 70
200k
1.2560
50
130
8.67k 500
400
2.4k
12.8k
Vout
5.1k
6.3V 2.0k 6.0k
Adjust
Vin
180 180 10
pF 10
pF
*Pulse Testing Required:
1% Duty Cycle is suggested.
Line Regulation (%/V) = VOH - VOL x 100
*
VCC
VIH
VIL Vin Vout
VOH
VOL
RL
+
1.0mF
CO
240
1%
R1
Adjust
R2
1%
Cin 0.1mF
LM317M
IAdj
Figure 3. Line Regulation and DIAdj/Line Test Circuit
VOL
LM317M, NCV317MA, NCV317M
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*Pulse Testing Required:
1% Duty Cycle is suggested.
Load Regulation (mV) = VO (min Load) -VO (max Load)
Load Regulation (% VO) = VO (min Load) - VO (max Load) X 100
VO (min Load)
VO (max Load)
LM317M
Cin 0.1mF
Adjust
R2
1%
CO1.0mF
+
*
RL
(max Load) RL
(min Load)
Vout
R1
240
1%
Vin Vin
IAdj
IL
Figure 4. Load Regulation and DIAdj/Load Test Circuit
VO (min Load)
*Pulse Testing Required:
1% Duty Cycle is suggested.
LM317M
Vin Vout
Adjust
R1240
1%
+
1mF
CO
RL
Cin
R2
1%
To Calculate R2:
Vout = ISET R2 + 1.250 V
Assume ISET = 5.25 mA
IL
IAdj
ISET
Vref
VO
VI
0.1mF
Figure 5. Standard Test Circuit
LM317M
Vin Vout Vout = 10 V
RL
Cin 0.1mF
Adjust R1240
1%
D1 *
1N4002
CO
+
1.0mF
24V
14V
R21.65K
1% CAdj 10mF
+
*D1 Discharges CAdj if Output is Shorted to Ground.
**CAdj provides an AC ground to the adjust pin.
f = 120 Hz
VO
**
Figure 6. Ripple Rejection Test Circuit
LM317M, NCV317MA, NCV317M
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Iout, OUTPUT CURRENT (A)
IB, QUIESCENT CURRENT (mA)
Vin-Vout, INPUT-OUTPUT VOLTAGE
DIFFERENTIAL (V)
Figure 7. Load Regulation Figure 8. Ripple Rejection
Figure 9. Current Limit Figure 10. Dropout Voltage
Figure 11. Minimum Operating Current Figure 12. Ripple Rejection versus Frequency
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
-50 -25 0 25 50 75 100 125 150
ΔVout
TJ, JUNCTION TEMPERATURE (°C)
, OUTPUT VOLTAGE CHANGE (%)
Vin = 45 V
Vout = 5.0 V
IL = 5.0 mA to 40 mA
Vin = 10 V
Vout = 5.0 V
IL = 5.0 mA to 100 mA
80
70
60
50
RR, RIPPLE REJECTION (dB)
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
IL = 100 mA
f = 120 Hz
Vout = 10 V
Vin = 14 V to 24 V
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
2.5
2.0
1.5
1.0
0.5
IL = 500 mA
1.0
0.80
0.60
0.40
0.20
00 1020304050
Vin-Vout, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V)
TJ = 25°C
TJ = 125°C
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0 10 203040
Vin-Vout, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (Vdc)
100
90
80
70
60
50
40
30
20
10
10 100 1.0 k 10 k 100 k 1.0 M
f, FREQUENCY (Hz)
RR, RIPPLE REJECTION (dB)
IL = 40 mA
Vin = 5.0 V ± 1.0 VPP
Vout = 1.25 V
90
Without CAdj = 10 mF
Without CAdj
IL = 100 mA
TJ = 25°C
TJ = 125°C
LM317M, NCV317MA, NCV317M
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Vout , OUTPUT VOLTAGEΔ
DEVIATION (V)
Vout , OUTPUT VOLTAGEΔ
DEVIATION (V)
Vin, INPUT VOLTAGEΔ
CHANGE (V)
Vout , OUTPUT VOLTAGE CHANGE (%)Δ
IAdj, ADJUSTMENT PIN CURRENT ( A)μ
ref
V , REFERENCE VOLTAGE (V)
CL = 0.3 mF; CAdj = 10 mF
Figure 13. Temperature Stability Figure 14. Adjustment Pin Current
Figure 15. Line Regulation Figure 16. Output Noise
Figure 17. Line Transient Response
0 10203040
t, TIME (ms)
CL = 1.0 mF
CL = 0
Vin
Vout = 10 V
IL = 50 mA
TJ = 25°C
010203040
t, TIME (ms)
I
CURRENT (A)
L, LOAD
CL = 1.0 mF; CAdj = 10 mF
Vin = 15 V
Vout = 10 V
INL = 50 mA
TJ = 25°C
IL
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Vin = 4.2 V
Vout = Vref
IL = 5.0 mA
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Vin = 6.25 V
Vout = Vref
 IL = 10 mA
IL = 100 mA
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Vin = 4.25 V to 41.25 V
Vout = Vref
IL = 5.0 mA
-50 -25 0 25 50 75 100 125 150
TJ, JUNCTION TEMPERATURE (°C)
Bandwidth 100 Hz to 10 kHz
Figure 18. Load Transient Response
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
1.0
0.5
0
3.0
2.0
1.0
0
-1.0
-2.0
-3.0
1.5
1.0
0.5
0
1.260
1.250
1.240
1.230
1.220
80
70
65
60
55
50
45
40
35
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
10
8.0
6.0
4.0
NOISE VOLTAGE ( V)μ
LM317M, NCV317MA, NCV317M
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APPLICATIONS INFORMATION
Basic Circuit Operation
The LM317M is a threeterminal floating regulator. In
operation, the LM317M develops and maintains a nominal
1.25 V reference (Vref) between its output and adjustment
terminals. This reference voltage is converted to a
programming current (IPROG) by R1 (see Figure 19), and this
constant current flows through R2 to ground. The regulated
output voltage is given by:
Vout +Vref ǒ1)R2
R1Ǔ)IAdj R2
Since the current from the terminal (IAdj) represents an
error term in the equation, the LM317M was designed to
control IAdj to less than 100 mA and keep it constant. To do
this, all quiescent operating current is returned to the output
terminal. This imposes the requirement for a minimum load
current. If the load current is less than this minimum, the
output voltage will rise.
Since the LM317M is a floating regulator, it is only the
voltage differential across the circuit which is important to
performance, and operation at high voltages with respect to
ground is possible.
+
Vref
Adjust
Vin Vout
LM317M
R1
IPROG
Vout
R2
IAdj
Vref = 1.25 V Typical
Figure 19. Basic Circuit Configuration
Load Regulation
The LM317M is capable of providing extremely good
load regulation, but a few precautions are needed to obtain
maximum performance. For best performance, the
programming resistor (R1) should be connected as close to
the regulator as possible to minimize line drops which
effectively appear in series with the reference, thereby
degrading regulation. The ground end of R2 can be returned
near the load ground to provide remote ground sensing and
improve load regulation.
External Capacitors
A 0.1 mF disc or 1.0 mF tantalum input bypass capacitor
(Cin) is recommended to reduce the sensitivity to input line
impedance.
The adjustment terminal may be bypassed to ground to
improve ripple rejection. This capacitor (CAdj) prevents
ripple from being amplified as the output voltage is
increased. A 10 mF capacitor should improve ripple
rejection about 15 dB at 120 Hz in a 10 V application.
Although the LM317M is stable with no output
capacitance, like any feedback circuit, certain values of
external capacitance can cause excessive ringing. An output
capacitance (CO) in the form of a 1.0 mF tantalum or 25 mF
aluminum electrolytic capacitor on the output swamps this
effect and insures stability.
Protection Diodes
When external capacitors are used with any IC regulator
it is sometimes necessary to add protection diodes to prevent
the capacitors from discharging through low current points
into the regulator.
Figure 20 shows the LM317M with the recommended
protection diodes for output voltages in excess of 25 V or
high capacitance values (CO > 25 mF, CAdj > 5.0 mF). Diode
D1 prevents CO from discharging thru the IC during an input
short circuit. Diode D2 protects against capacitor CAdj
discharging through the IC during an output short circuit.
The combination of diodes D1 and D2 prevents CAdj from
discharging through the IC during an input short circuit.
D1
Vin
Cin
1N4002
LM317M
Vout
R1
+
CO
D2
R2CAdj
1N4002
Adjust
Vout
Figure 20. Voltage Regulator with
Protection Diodes
LM317M, NCV317MA, NCV317M
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Figure 21. Adjustable Current Limiter Figure 22. 5 V Electronic Shutdown Regulator
Figure 23. Slow TurnOn Regulator Figure 24. Current Regulator
Vref
+25V
Vin
LM317M
Vout R1VO
1.25k
Adjust
IO
D2
1N914
1N5314
R2
500
* To provide current limiting of IO
to the system ground, the source of
the current limiting diode must be tied to
 a negative voltage below -7.25 V.
R2 Vref
R1 =
VSS*
D1
1N914
VO < POV + 1.25 V + VSS
ILmin - IP < IO < 500 mA - IP
As shown O < IO < 495 mA
+
10mF
Vin
Vout
240 1N4001
LM317M
Adjust
MPS2907
R2
50k
Vin
D1
1N4002
Vout
120
Adjust
720
+
1.0mF
MPS2222
1.0k
TTL
Control
LM317M
Minimum Vout = 1.25 V
D1 protects the device during an input short circuit.
LM317M
Vin
R1R2
Adjust IAdj
Iout
5.0 mA < Iout < 500 mA
Vout
Ioutmax = Vref + IAdj ^1.25 V
R1 + R2
Vout
Vout
Vin
IDSS
IOmax + IDSS
R1 + R2
40
50
60
70
80
90
100
0
0.4
0.8
1.2
1.6
2.0
2.4
010203025155.0
L, LENGTH OF COPPER (mm)
PD(max) for TA = 50°C
Minimum
Size Pad
L
L
Free Air
Mounted
Vertically
RqJA
2.0 oz. Copper
Figure 25. DPAK Thermal Resistance and Maximum
Power Dissipation versus PCB Copper Length
Figure 26. SOT223 Thermal Resistance and Maximum
Power Dissipation versus PCB Copper Length
40
80
120
160
200
240
280
0.35
0.42
0.50
0.63
0.83
1.25
2.50
010203025155.0
L, LENGTH OF COPPER (mm)
PD(max) for TA = 50°C
Minimum
Size Pad
L
L
Free Air
Mounted
Vertically
RqJA
2.0 oz. Copper
R , THERMAL RESISTANCE,
JAθJUNCTION-TO-AIR ( C/W)°
LM317M, NCV317MA, NCV317M
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ORDERING INFORMATION
Device
Output Voltage
Tolerance
Operating Temperature
Range Package Shipping
LM317MABDTG
2%
TJ = 40°C to 125°C
DPAK
(PbFree)
75 Units / Rail
LM317MABDTRKG DPAK
(PbFree)
2500 / Tape & Reel
NCV317MABDTRKG*
NCV317MABSTT3G* SOT223
(PbFree)
4000 / Tape & Reel
LM317MABTG TO220
(PbFree)
50 Units / Rail
LM317MADTRKG TJ = 0°C to 125°CDPAK
(PbFree)
2500 / Tape & Reel
LM317MBDTG
4%
TJ = 40°C to 125°C
DPAK
(PbFree)
75 Units / Rail
NCV317MBDTG*
LM317MBDTRKG DPAK
(PbFree)
2500 / Tape & Reel
NCV317MBDTRKG*
LM317MBSTT3G SOT223
(PbFree)
4000 / Tape & Reel
NCV317MBSTT3G*
LM317MBTG TO220
(PbFree)
50 Units / Rail
NCV317MBTG*
LM317MDTG
TJ = 0°C to 125°C
DPAK
(PbFree)
75 Units / Rail
LM317MDTRKG DPAK
(PbFree)
2500 / Tape & Reel
LM317MSTT3G SOT223
(PbFree)
4000 / Tape & Reel
LM317MTG TO220
(PbFree)
50 Units / Rail
For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specification Brochure, BRD8011/D.
*NCV devices: Tlow = 40°C, Thigh = +125°C. Guaranteed by design. NCV Prefix for Automotive and Other Applications Requiring Unique Site
and Control Change Requirements; AECQ100 Qualified and PPAP Capable.
LM317M, NCV317MA, NCV317M
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MARKING DIAGRAMS
317ABG
ALYWW
DPAK
DT SUFFIX
CASE 369C
317MBG
ALYWW
317MG
ALYWW
TO220
T SUFFIX
CASE 221A
317MAG
ALYWW
SOT223
ST SUFFIX
CASE 318E
AYW
317MB G
G
A = Assembly Location
L, WL = Wafer Lot
Y = Year
WW, W = Work Week
G or G= PbFree Package
(Note: Microdot may be in either location)
LM
317MT
AWLYWWG
LM
317MBT
AWLYWWG
LM
317MABT
AWLYWWG
AYW
317M G
G
AYW
317MA G
G
LM317M, NCV317MA, NCV317M
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PACKAGE DIMENSIONS
TO220, SINGLE GAUGE
CASE 221AB
ISSUE A
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCHES.
3. DIMENSION Z DEFINES A ZONE WHERE ALL BODY AND
LEAD IRREGULARITIES ARE ALLOWED.
4. PRODUCT SHIPPED PRIOR TO 2008 HAD DIMENSIONS
S = 0.045 - 0.055 INCHES (1.143 - 1.397 MM)
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.570 0.620 14.48 15.75
B0.380 0.405 9.66 10.28
C0.160 0.190 4.07 4.82
D0.025 0.035 0.64 0.88
F0.142 0.147 3.61 3.73
G0.095 0.105 2.42 2.66
H0.110 0.155 2.80 3.93
J0.018 0.025 0.46 0.64
K0.500 0.562 12.70 14.27
L0.045 0.060 1.15 1.52
N0.190 0.210 4.83 5.33
Q0.100 0.120 2.54 3.04
R0.080 0.110 2.04 2.79
S0.020 0.024 0.508 0.61
T0.235 0.255 5.97 6.47
U0.000 0.050 0.00 1.27
V0.045 --- 1.15 ---
Z--- 0.080 --- 2.04
B
Q
H
Z
L
V
G
N
A
K
F
123
4
D
SEATING
PLANE
T
C
S
T
U
R
J
LM317M, NCV317MA, NCV317M
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PACKAGE DIMENSIONS
DPAK
DT SUFFIX
CASE 369C
ISSUE F
5.80
0.228
2.58
0.102
1.60
0.063
6.20
0.244
3.00
0.118
6.17
0.243
ǒmm
inchesǓ
SCALE 3:1
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
b
D
E
b3
L3
L4
b2
M
0.005 (0.13) C
c2
A
c
C
Z
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
D0.235 0.245 5.97 6.22
E0.250 0.265 6.35 6.73
A0.086 0.094 2.18 2.38
b0.025 0.035 0.63 0.89
c2 0.018 0.024 0.46 0.61
b2 0.028 0.045 0.72 1.14
c0.018 0.024 0.46 0.61
e0.090 BSC 2.29 BSC
b3 0.180 0.215 4.57 5.46
L4 −−− 0.040 −−− 1.01
L0.055 0.070 1.40 1.78
L3 0.035 0.050 0.89 1.27
Z0.155 −−− 3.93 −−−
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: INCHES.
3. THERMAL PAD CONTOUR OPTIONAL WITHIN DI-
MENSIONS b3, L3 and Z.
4. DIMENSIONS D AND E DO NOT INCLUDE MOLD
FLASH, PROTRUSIONS, OR BURRS. MOLD
FLASH, PROTRUSIONS, OR GATE BURRS SHALL
NOT EXCEED 0.006 INCHES PER SIDE.
5. DIMENSIONS D AND E ARE DETERMINED AT THE
OUTERMOST EXTREMES OF THE PLASTIC BODY.
6. DATUMS A AND B ARE DETERMINED AT DATUM
PLANE H.
7. OPTIONAL MOLD FEATURE.
12 3
4
H0.370 0.410 9.40 10.41
A1 0.000 0.005 0.00 0.13
L1 0.114 REF 2.90 REF
L2 0.020 BSC 0.51 BSC
A1
H
DETAIL A
SEATING
PLANE
A
B
C
L1
L
H
L2 GAUGE
PLANE
DETAIL A
ROTATED 90 CW5
e
BOTTOM VIEW
Z
BOTTOM VIEW
SIDE VIEW
TOP VIEW
ALTERNATE
CONSTRUCTIONS
NOTE 7
Z
LM317M, NCV317MA, NCV317M
www.onsemi.com
14
PACKAGE DIMENSIONS
SOT223 (TO261)
ST SUFFIX
CASE 318E04
ISSUE R
q
q
LM317M, NCV317MA, NCV317M
www.onsemi.com
15
LM317M/D
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