2
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
= 6V, I
O
= 1mA, C
OUT
= 2.2
μ
F, T
A
= 25
°
C, unless otherwise specified.
Boldface
applies over
the full operating temperature range.
PARAMETER
CONDITIONS
(Note 2)
TYP
MIN
MAX
UNITS
3.3V Version
Output Voltage
3.3
3.3
3.267
3.217
3.333
3.382
V
1mA
≤
I
L
≤
300mA
V
OUT
= 3.3V, V
IN
= 0V
Reverse Output Current
5.0V Version
16
25
μ
A
Output Voltage
5.0
5.0
4.950
4.880
5.050
5.120
V
1mA
≤
I
L
≤
300mA
V
OUT
= 5.0V, V
IN
= 0V
Reverse Output Current
All Voltage Options
16
25
μ
A
Output Voltage
Temperature Coefficient
20
100
ppm/
°
C
(Note1)
Line Regulation
6V
≤
V
IN
≤
20V (Note 4)
I
L
=1 to 300mA
1.5
20
mV
Load Regulation (Note 3)
4
20
30
mV
Dropout Voltage (Note 5)
I
L
=1mA
0.13
0.17
0.25
0.55
0.70
150
500
3
6
14
500
V
I
L
=300mA
0.30
Ground Current
I
L
=1mA
I
L
=10mA
I
L
=50mA
I
L
=100mA
I
L
=300mA
V
OUT
=0
V
IN
-V
OUT
=1V(Avg),
V
RIPPLE
=0.5Vp-p,
F
RIPPLE
=120Hz, I
LOAD
=150mA
V
IN
= -20V, V
OUT
=0V
100
350
1.5
2
5
μ
A
mA
Current Limit
330
mA
Ripple Rejection
58
50
dB
Input Reverse Leakage Current
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
= 25
°
C, V
= 6V, I
= 1mA and C
= 2.2
μ
F.
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
L
= 1 mA. For T
J
= 125
°
C, line regulation is guaranteed
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