2

Date: 3/14/06

SPX2945 400mA Low Dropout Voltage Regulator with Shutdown

©Copyright 2006 Sipex Corporation

ELECTRICAL CHARACTERISTICS

the specifications wich apply over full operating tempeture range -40

°C to +85°C, unless noted.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

(Note 2)

3.3V Version

Output Voltage

3.267

3.3

3.333

V

3.217

3.3

3.382

♦

5.0V Version

Output Voltage

4.950

5.0

5.050

V

4.880

5.0

5.120

♦

All Voltage Options

Output Voltage

20

100

♦

ppm/°C

Temperature Coefficient

(Note1)

Line Regulation (Note 3)

1.5

20

♦

mV

Load Regulation (Note 3)

6

20

mV

30

♦

Dropout Voltage (Note5)

60

100

mV

150

♦

360

450

700

♦

Ground Current

100

200

µA

300

♦

2

4

mA

6

♦

4

8

12

♦

8

15

25

♦

Current Limit

330

800

♦

mA

Thermal Regulation

0.05

0.2

%/W

400

260

PSRR at 100KHz

31

dB

Adjustable 8 Pin Version only

Reference Voltage

1.210

1.235

1.260

V

Reference Voltage

Over Temperature

1.185

1.285

V

Feedback Pin Bias Current

20

40

nA

60

♦

Reference Voltage Temp.

20

ppm/°C

Coefficient

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

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

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

Operating Junction Temperature Range ....................... -40°C to +125°C

Input Supply Voltage ......................................................... -20V to +26V

ABSOLUTE MAXIMUM RATINGS

Feedback Input Voltage ................................................ -1.5V to +26V

Shutdown Input Voltage ................................................ -0.3V to +26V

Error Comparator Output .............................................. -0.3V to +26V

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