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Date: 5/25/04

SPX1521 300mA Low Dropout Voltage Regulator

©Copyright 2004 Sipex Corporation

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

ABSOLUTE MAXIMUM RATINGS

Electrical characteristics at V

the full operating temperature range.

PARAMETER

CONDITIONS

TYP

MIN

MAX

UNITS

(Note 2)

3.3V Version

Output Voltage

3.3

3.267

3.333

V

1mA ≤ I

3.3

3.217

3.382

Reverse Output Current

V

16

25

µA

5.0V Version

Output Voltage

5.0

4.950

5.050

V

1mA ≤ I

5.0

4.880

5.120

Reverse Output Current

V

16

25

µA

All Voltage Options

Output Voltage

20

100

ppm/°C

Temperature Coefficient

(Note1)

Line Regulation

6V ≤ V

1.5

20

mV

Load Regulation (Note 3)

I

4

20

mV

30

Dropout Voltage (Note 5)

I

0.13

0.17

V

0.25

I

0.30

0.55

0.70

Ground Current

I

100

150

µA

I

350

500

I

1.5

3

mA

I

26

I

514

Current Limit

V

330

500

mA

Ripple Rejection

V

58

50

dB

V

F

Input Reverse Leakage Current

V

1.0

mA

Note 1: Output or reference voltage temperature coefficients defined as the worst case voltage change divided by

the total temperature range.

Note 2: Unless otherwise specified all limits are guaranteed for T

Note 3: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes

in output voltage due to heating effects are covered under the specification for thermal regulation.

Note 4: Line regulation for the SPX1521 is tested at 25°C for I

by design.

Note 5: Dropout voltage is defined as the input to output differential at which the output voltage drops 100 mV below

its nominal value measured at 1V differential.

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

Shutdown Input Voltage ................................................. -0.6V to +6.5V

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

ELECTRICAL CHARACTERISTICS