Storage Temperature
Lead Temperature
(Soldering, 4 seconds)
Output is Short Circuit Protected
ESD Susceptibility
−55°C to +150°C
260°C
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Power Dissipation
Internally Limited
40V
Human Body Model (Note 5)
2kV
Input-Output Voltage Differential
Operating Junction Temperature
Range
−40°C to +125°C
Electrical Characteristics (Note 2)
Parameter
Conditions
Min
Typ Max Units
Line Regulation
0.01 0.04 %/V
TJ = 25°C, 3V ≤ (VIN − VOUT) ≤ 40V, IL ≤ 20mA (Note 3)
Load Regulation
0.1
0.5
%
TJ = 25°C, 5mA ≤ IOUT ≤ IMAX, (Note 3)
Thermal Regulation
Adjustment Pin Current
Adjustment Pin Current
Change
TJ = 25°C, 10ms Pulse
0.04
50
0.2
100
5
%/W
μA
0.2
μA
5mA ≤ IL ≤ 100mA
3V ≤ (VIN − VOUT) ≤ 40V, P ≤ 625mW
3V ≤ (VIN − VOUT) ≤ 40V, (Note 4)
5mA ≤ IOUT ≤ 100mA, P ≤ 625mW
3V ≤ (VIN − VOUT) ≤ 40V, IL ≤ 20mA (Note 3)
5mA ≤ IOUT ≤ 100mA, (Note 3)
TMIN ≤ TJ ≤ TMax
Reference Voltage
1.20 1.25 1.30
V
Line Regulation
0.02 0.07 %/V
Load Regulation
0.3
0.65
3.5
1.5
%
%
Temperature Stability
Minimum Load Current
5
mA
(VIN − VOUT) ≤ 40V
1.5
2.5
300
150
3V ≤ (VIN − VOUT) ≤ 15V
Current Limit
100
25
200
50
mA
mA
%
3V ≤ (VIN − VOUT) ≤ 13V
(VIN − VOUT) = 40V
Rms Output Noise, % of VOUT
Ripple Rejection Ratio
0.003
TJ = 25°C, 10Hz ≤ f ≤ 10kHz
VOUT = 10V, f = 120Hz, CADJ = 0
CADJ = 10μF
65
80
dB
dB
66
Long-Term Stability
TJ = 125°C, 1000 Hours
0.3
1
%
Thermal Resistance
Junction to Ambient
Z Package 0.4″ Leads
Z Package 0.125 Leads
SO-8 Package
180
160
165
290
°C/W
°C/W
°C/W
°C/W
6-Bump micro SMD
Note 1: “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device
is functional, but do not guarantee specific performance limits.
Note 2: Unless otherwise noted, these specifications apply: −25°C ≤ Tj ≤ 125°C for the LM317L; VIN − VOUT = 5V and IOUT = 40mA. Although power dissipation
is internally limited, these specifications are applicable for power dissipations up to 625mW. IMAX is 100mA.
Note 3: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are
covered under the specification for thermal regulation.
Note 4: Thermal resistance of the TO-92 package is 180°C/W junction to ambient with 0.4″ leads from a PC board and 160°C/W junction to ambient with 0.125″
lead length to PC board.
Note 5: The human body model is a 100pF capacitor discharged through a 1.5kΩ resistor into each pin.
3
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