Datasheet

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
Input-Output Voltage Differential 40V
Operating Junction Temperature
Range −40°C to +125°C
Storage Temperature −55°C to +150°C
Lead Temperature
(Soldering, 4 seconds) 260°C
Output is Short Circuit Protected
ESD Susceptibility
Human Body Model (Note 5) 2kV
Electrical Characteristics (Note 2)
Parameter Conditions Min Typ Max Units
Line Regulation
T
J
= 25°C, 3V ≤ (V
IN
− V
OUT
) ≤ 40V, I
L
≤ 20mA (Note 3)
0.01 0.04 %/V
Load Regulation
T
J
= 25°C, 5mA ≤ I
OUT
≤ I
MAX
, (Note 3)
0.1 0.5 %
Thermal Regulation T
J
= 25°C, 10ms Pulse 0.04 0.2 %/W
Adjustment Pin Current 50 100
μA
Adjustment Pin Current
5mA ≤ I
L
≤ 100mA
0.2 5
μA
Change
3V ≤ (V
IN
− V
OUT
) ≤ 40V, P ≤ 625mW
Reference Voltage
3V ≤ (V
IN
− V
OUT
) ≤ 40V, (Note 4)
1.20 1.25 1.30 V
5mA ≤ I
OUT
≤ 100mA, P ≤ 625mW
Line Regulation
3V ≤ (V
IN
− V
OUT
) ≤ 40V, I
L
≤ 20mA (Note 3)
0.02 0.07 %/V
Load Regulation
5mA ≤ I
OUT
≤ 100mA, (Note 3)
0.3 1.5 %
Temperature Stability
T
MIN
≤ T
J
≤ T
Max
0.65 %
Minimum Load Current
(V
IN
− V
OUT
) ≤ 40V
3.5 5 mA
3V ≤ (V
IN
− V
OUT
) ≤ 15V
1.5 2.5
Current Limit
3V ≤ (V
IN
− V
OUT
) ≤ 13V
100 200 300 mA
(V
IN
− V
OUT
) = 40V 25 50 150 mA
Rms Output Noise, % of V
OUT
T
J
= 25°C, 10Hz ≤ f ≤ 10kHz
0.003 %
Ripple Rejection Ratio V
OUT
= 10V, f = 120Hz, C
ADJ
= 0 65 dB
C
ADJ
= 10μF
66 80 dB
Long-Term Stability T
J
= 125°C, 1000 Hours 0.3 1 %
Thermal Resistance Z Package 0.4″ Leads 180 °C/W
Junction to Ambient Z Package 0.125 Leads 160 °C/W
SO-8 Package 165 °C/W
6-Bump micro SMD 290 °C/W
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 ≤ T
j
≤ 125°C for the LM317L; V
IN
− V
OUT
= 5V and I
OUT
= 40mA. Although power dissipation
is internally limited, these specifications are applicable for power dissipations up to 625mW. I
MAX
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.
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LM317L