3

LT1117/LT1117-2.85

LT1117-3.3/LT1117-5

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Load Regulation

LT1117

q

0.1

0.4

%

LT1117-2.85

q

110

mV

LT1117-3.3

q

110

mV

LT1117-5

q

115

mV

Dropout Voltage

1.00

1.10

V

1.05

1.15

V

1.10

1.20

V

1.00

1.20

V

1.05

1.25

V

1.10

1.30

V

Current Limit

800

950

1200

mA

Minimum Load Current

LT1117

q

1.7

5

mA

Quiescent Current

LT1117-2.85

q

510

mA

LT1117-3.3

q

510

mA

LT1117-5

q

510

mA

Thermal Regulation

0.01

0.1

%/W

Ripple Rejection

q

60

75

dB

Adjust Pin Current

q

55

120

µA

Adjust Pin Current Change

10mA

q

0.2

5

µA

Temperature Stability

0.5

%

Long Term Stability

0.3

%

RMS Output Noise

0.003

%

Thermal Resistance

(Junction-to-Case, at Tab)

15

°C/W

ELECTRICAL C

C

HARA TERISTICS

Note 1: Absolute Maximum Ratings are those values beyond which the life

to the device may be imparied.

Note 2: See thermal regulation specification for changes in output voltage

due to heating effects. Load regulation and line regulation are measured at

a constant junction temperature by low duty cycle pulse testing.

Note 3: Dropout voltage is specified over the full output current range of

the device. Dropout voltage is defined as the minimum input/output

differential measured at the specified output current. Test points and limits

are also shown on the Dropout Voltage curve.

Note 4: Minimum load current is defined as the minimum output current

required to maintain regulation.

CC

HARA TERISTICS

A

TYPICALPERFOR

CE

Minimum Operating Current

(Adjustable Device)

Short-Circuit Current

Load Regulation

INPUT/OUTPUT DIFFERENTIAL (V)

0

0

1

3

4

10

15

20

LT1117 • TPC02

5

2

INPUT/OUTPUT DIFFERENTIAL (V)

0

0

0.25

0.50

0.75

1.25

10

15

LT1117 • TPC03

5

1.00

TEMPERATURE (

°C)

–50

– 0.20

– 0.15

– 0.10

– 0.05

0.10

50

75

125

LT1117 • TPC04

0

0.05

0

–25

25

100

∆ I