LMS8117A Datasheet, PDF (4/16 Pages) National Semiconductor (TI) – 1A Low-Dropout Linear Regulator

Electrical Characteristics (Continued)
Typicals and limits appearing in normal type apply for T_J = 25˚C. Limits appearing in Boldface type apply over the entire junc-
tion temperature range for operation, 0˚C to 125˚C.
Symbol
Parameter
Conditions
Min
Typ
Max
(Note 5) (Note 4) (Note 5)
Units
Temperature Stability
0.5
%
Long Term Stability
RMS Output Noise
Thermal Resistance
Junction-to-Case
T_A = 125˚C, 1000Hrs
(% of V_OUT), 10Hz ≤ f ≤ 10kHz
3-Lead SOT-223
3-Lead TO-252
0.3
0.003
15.0
10
%
%
˚C/W
˚C/W
Thermal Resistance
Junction-to-Ambient
(No heat sink;
No air flow)
3-Lead SOT-223
3-Lead TO-252 (Note 9)
136
˚C/W
92
˚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
intended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2: The maximum power dissipation is a function of T_J(MAX) , θ_JA, and T_A. The maximum allowable power dissipation at any ambient temperature is
P_D = (T_J(MAX)–T_A)/θ_JA. All numbers apply for packages soldered directly into a PC board.
Note 3: For testing purposes, ESD was applied using human body model, 1.5kΩ in series with 100pF.
Note 4: Typical Values represent the most likely parametric norm.
Note 5: All limits are guaranteed by testing or statistical analysis.
Note 6: Load and line regulation are measured at constant junction room temperature.
Note 7: The dropout voltage is the input/output differential at which the circuit ceases to regulate against further reduction in input voltage. It is measured when the
output voltage has dropped 100mV from the nominal value obtained at V_IN = V_OUT +1.5V.
Note 8: The minimum output current required to maintain regulation.
Note 9: Minimum pad size of 0.038in²
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