2

Date: 5/25/04

SPX2940 1A Low Dropout Voltage Regulator

© Copyright 2004 Sipex Corporation

ABSOLUTE MAXIMUM RATINGS

Lead Temperature (soldering, 5 seconds) ................................. 260°C

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

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

Input Voltage (Note 5) ................................................................... 16V

NOTES:

Note 1: Dropout voltage is defined as the input to output differential when the output voltage drops to 99% of its normal value.

Note 3: Ground pin current is the regulator quiescent current. The total current drawn from the source is the sum of the load current to the ground current.

Note 4: Thermal regulation is defined as the change in the output voltage at a time T after a change in power dissipation is applied, excluding load or line regulation

effects.

Note 5: Maximum positive supply voltage of 20V must be of limited duration (<100ms) and duty cycle (<1%). The maximum continuous supply voltage is 16V.

at V

Boldface applies over the junction temperature range. Adjustable versions are set at 5.0V.

PARAMETER

CONDITIONS

TYP

MIN

MAX

UNITS

1.8V Version

Output Voltage

1.8

1.746

1.854

V

1.8

1.710

1.890

2.5V Version

Output Voltage

2.5

2.425

2.575

V

2.5

2.375

2.625

3.3V Version

Output Voltage

3.3

3.201

3.399

V

3.3

3.135

3.465

5.0V Version

Output Voltage

5.0

4.850

5.150

V

5.0

4.750

5.250

All Voltage Options

Line Regulation

0.2

1.0

%

Load Regulation

0.3

1.5

%

∆V

Output Voltage

20

100

ppm/°C

∆T

Temperature Coef.

70

200

mV

(except 1.8V version)

280

550

12

25

mA

18

1.2

mA

Current at Dropout

Current Limit

2.2

1.5

A

Output Noise Voltage

400

10Hz to 100kHz)

260

Thermal Resistance

TO-220 Junction to Case, at Tab

3

TO-220 Junction to Ambient

60

°C/W

TO-263 Junction to Case, at Tab

3

TO-263 Junction to Ambient

60

ELECTRICAL CHARACTERISTICS