LM5954

Preliminary

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 5

www.unisonic.com.tw

QW-R101-035.a

ABSOLUTE MAXIMUM RATING

PARAMETER

SYMBOL

RATINGS

UNIT

Supply Voltage

-0.3~+27

V

Feedback Voltage

-1.5~+27

V

Shutdown Voltage

-0.3~+27

V

Power Dissipation

Internally Limited

W

Junction Temperature

+125

°C

Storage Temperature

-65~+150

°C

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA

PARAMETER

SYMBOL

RATINGS

UNIT

Junction to Ambient

50

°C/W

Junction to Case

20

°C/W

ELECTRICAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Input Voltage

6.5

25

V

Output Voltage Accuracy

-2

2

%

Output Voltage Range

3

20

V

75

120

140

uA

Quiescent Current

8

12

22

mA

Load Current Range

0

300

mA

Reference Voltage

-2%

1.235 +2%

V

Line Regulation

0.1

0.2

%

Load Regulation

0.2

0.5

%

50

80

150

Dropout Voltage

380

450

600

mV

PROTECTION

Over Temperature Shutdown

OTS

150

°C

Circuit Current Limit

350

400

500

mA

Short Current

50

mA

SHUTDOWN

Input High Voltage

2

Input Low Voltage

0.7

V

EN pin Input Bias Current

450

600

μA

Shutdown Supply Current

0.1

1

mA