LP2950AC Просмотр технического описания (PDF) - Signal Processing Technologies

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LP2950AC

100mA Low Dropout Voltage Regulators

Signal Processing Technologies 

LP2950/51

ABSOLUTE MAXIMUM RATINGS

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

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

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

Operating Junction Temperature Range -40C to +125C

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

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

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

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

ESD Rating .........................................................................2kV Min

ELECTRICAL CHARACTERISTICS VIN=6V, IO=100µA, COUT=1µF (Note 2) TA=25C, unless otherwise noted.

PARAMETER

CONDITIONS

LP2950AC

LP2951AC

Min. Typ. Max.

LP2950C

LP2951C

Min. Typ. Max.

UNITS

3.3 V Versions

Output Voltage

TJ = 25¡C

3.284 3.3 3.317 3.267 3.3 3.333

V

-25¡C ≤TJ ≤85¡C

3.267 3.3 3.333 3.251 3.3 3.350

3.260 3.3 3.340 3.234 3.3 3.366

Full Operating Temperature

Output Voltage

100 µA ≤IL ≤100 mA

3.254 3.3 3.346 3.221 3.3 3.379

V

TJ ≤TJMAX

5 V Versions

Output Voltage

TJ = 25¡C

4.975 5.0 5.025 4.950 5.0 5.050

V

-25¡C ≤TJ ≤85¡C

4.950 5.0 5.050 4.925 5.0 5.075

Full Operating Temperature

4.940 5.0 5.060 4.900 5.0 5.100

Output Voltage

100 µA ≤IL ≤100 mA

4.925 5.0 5.075 4.880 5.0 5.120

V

TJ ≤TJMAX

All Voltage Options

Output Voltage

Temperature Coefficient

Line Regulation (Note 3)

Load Regulation (Note 3)

(Note 1)

6V ≤VIN ≤30V (Note 4)

100 µA ≤IL ≤ 100 mA

20

120

0.03 0.1

0.04 0.1

50

150

0.04 0.2

0.1

0.2

ppm/¡C

%

%

Dropout Voltage

(Note 5)

Ground Current

Current Limit

Thermal Regulation

IL = 100 µA

IL = 100 mA

IL = 100 µA

IL = 100 mA

VOUT = 0

50

80

380 450

150 170

8

12

150 200

0.05 0.2

50

80

380 450

150 170

8

12

150 200

0.05 0.2

mV

mV

µA

mA

mA

%/W

Output Noise,

10Hz to 100KHz

8-Pin Versions only

Reference Voltage

CL = 1µF

CL = 200 µF

CL = 3.3 µF, Bypass = 0.01µF

from Pin 7 to Pin 1 (LP2951)

430

430

160

160

100

100

LP2951AC

LP2951C

1.220 1.235 1.250 1.210 1.235 1.260

µV rms

µV rms

µV rms

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

Rev. 8/10/01

LP2950/51 100mA Low Dropout Voltage Regulators

2

©Copyright 2001 Sipex Corporation

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