Rev. 8/10/01

LP2950/51 100mA Low Dropout Voltage Regulators

©Copyright 2001 Sipex Corporation

2

LP2950/51

ABSOLUTE MAXIMUM RATINGS

Power Dissipation.....................................Internally Limited

Feedback Input Voltage................................................ -1.5V to +30V

Lead Temp. (Soldering, 5 Seconds)............................260¡C

Shutdown Input Voltage............................................... -0.3V to +30V

Storage Temperature Range ......................... -65¡ to +150¡C

Error Comparator Output ............................................. -0.3V to +30V

Operating Junction Temperature Range

-40C to +125C

ESD Rating

.........................................................................2kV Min

Input Supply Voltage..................................... -0.3V to +30V

PARAMETER

CONDITIONS

LP2950AC

LP2951AC

Min.

Typ.

Max.

LP2950C

LP2951C

Min.

Typ.

Max.

UNITS

3.3 V Versions

Output Voltage

TJ = 25¡C

-25¡C ≤TJ ≤85¡C

Full Operating Temperature

3.284

3.267

3.260

3.3

3.3

3.3

3.317

3.333

3.340

3.267

3.251

3.234

3.3

3.3

3.3

3.333

3.350

3.366

V

Output Voltage

3.254

3.3

3.346

3.221

3.3

3.379

V

5 V Versions

Output Voltage

Full Operating Temperature

4.975

4.950

4.940

5.0

5.0

5.0

5.025

5.050

5.060

4.950

4.925

4.900

5.0

5.0

5.0

5.050

5.075

5.100

V

Output Voltage

4.925

5.0

5.075

4.880

5.0

5.120

V

All Voltage Options

Output Voltage

Temperature Coefficient

(Note 1)

20

120

50

150

ppm/¡C

Line Regulation (Note 3)

6V ≤VIN ≤30V (Note 4)

0.03

0.1

0.04

0.2

%

Load Regulation (Note 3)

0.04

0.1

0.1

0.2

%

Dropout Voltage

(Note 5)

50

380

80

450

50

380

80

450

mV

mV

Ground Current

150

8

170

12

150

8

170

12

µA

mA

Current Limit

150

200

150

200

mA

Thermal Regulation

0.05

0.2

0.05

0.2

%/W

Output Noise,

430

430

µV rms

10Hz to 100KHz

160

160

µV rms

from Pin 7 to Pin 1 (LP2951)

100

100

µV rms

8-Pin Versions only

LP2951AC

LP2951C

Reference Voltage

1.220

1.235

1.250

1.210

1.235

1.260

V

Reference Voltage

Over Temperature (Note 6)

1.190

1.270

1.185

1.285

V

Feedback Pin Bias

Current

40

60

40

60

nA