LM1117 datasheet(5/14 Pages) FCI

5 / 14 page

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

(Note 5)

Typ

(Note 4)

Max

(Note 5)

Units

Quiescent Current

LM1117-2.85

IN≤10V

LM1117-3.3

IN≤15V

LM1117-5.0

IN≤15V

Thermal Regulation

A=25˚C, 30ms Pulse

0.01

0.1

%/W

Ripple Regulation

RIPPLE=120Hz, V IN-VOUT=3V

RIPPLE=1VPP

Adjust Pin Current

120

µA

Adjust Pin Current

Change

≤ I

OUT≤ 800mA,

1.4V

≤ V

IN-VOUT≤ 10V

0.2

µA

Temperature Stability

0.5

Long Term Stability

A=125˚C, 1000Hrs

0.3

RMS Output Noise

(% of V

OUT), 10Hz≤f≤10kHz

0.003

Thermal Resistance

Junction-to-Case

3-Lead SOT-223

3,5 -Lead TO-220

3,5 -Lead TO-252

15.0

3.0

˚C/W

Thermal Resistance

Junction-to-Ambient

(No heat sink;

No air flow)

3-Lead SOT-223

3,5 -Lead TO-220

3,5 -Lead TO-252(Note 9)

136

˚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 in-

tended 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 TJ(max) , θJA, and TA. The maximum allowable power dissipation at any ambient temperature is PD =(T

(max)

–T A)/θJA. All numbers apply for packages soldered directly into a PC board.

Note 3: For testing purposes, ESD was applied using human body model, 1.5k

Ω 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 VIN=V OUT+1.5V.

Note 8: The minimum output current required to maintain regulation.

Note 9: Minimum pad size of 0.038in2

LM1117 800mA Low-dropout Linear Regulator

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