Elektronische Bauelemente

SM1117A

1A Low Dropout Positive

Adjustable or Fixed-Mode Regulator

01-Jun-2011 Rev. B

Page 3 of 4

http://www.SeCoSGmbH.com/

Any changes of specification will not be informed individually.

ELECTRICAL CHARACTERISTICS

Parameter

Test Conditions

Min.

Typ.

Max

Unit

Reference Voltage

SM1117A-ADJ

1.225

1.25

1.275

V

SM1117A-1.5

1.47

1.5

1.53

V

SM117A-1.8

1.764

1.8

1.836

V

SM117A-2.5

2.45

2.5

2.55

V

SM117A-3.3

3.235

3.3

3.365

V

Output Voltage

SM117A-5.0

4.9

5

5.1

V

Line Regulation

SM117A-XXX

-

-

0.2

%

SM117A-ADJ

-

-

1

%

SM117A-1.5

1,2

-

12

15

mV

SM117A-1.8

1,2

-

15

18

mV

SM117A-2.5

1,2

-

20

25

mV

SM117A-3.3

1,2

-

26

33

mV

Load Regulation

SM117A-5.0

1,2

-

40

50

mV

Dropout Voltage

SM117A-XXX

-

1.3

1.4

V

Current Limit

SM117A-XXX

1.1

-

-

A

-

5

10

mA

Thermal Regulation

-

0.008

0.04

%W

Ripple Rejection

SM117AXXX

-

60

70

dB

Temperature Stability

-

0.5

-

%

Junction-to-Ambient

(No heat sink ;No air flow)

-

300

-

°C/W

Junction-to-Case

Control Circuitry/Power Transistor

-

100

-

°C/W

Note:

1. See thermal regulation specifications for changes in output voltage due to heating effects. Line and load regulation are measured at

a constant junction Temperature by low duty cycle pulse testing. Load regulation is measured at the output lead =1/18”. from the

package.

2. Line and load regulation are guaranteed up to the maximum power dissipation of 15W.Power dissipation is determined by the

difference between input and output and the output current .Guaranteed maximum power dissipation will not be available over

the full input/output range.

3. Quiescent current is defined as the minimum output current required in maintaining regulation .At 12V input/output

differential the device is guaranteed to regulate if the output current is greater than 10mA.