Datasheet

LT1033
3
1033fd
For more information www.linear.com/LT1033
elecTrical characTerisTics
(Note 2) The l denotes the specifications which apply over the full
operating temperature range, otherwise specifications are at T
A
= 25°C.
SYMBOL PARAMETER CONDITIONS
LT1033M LT1033C
UNITSMIN TYP MAX MIN TYP MAX
V
REF
Reference Voltage |V
IN
– V
OUT
| = 5V, I
OUT
= 5mA,
T
J
= 25°C
–1.238 –1.250 –1.262 –1.238 –1.250 –1.262 V
3V ≤ |V
IN
– V
OUT
| ≤ 35V
5mA ≤ I
OUT
≤ I
MAX
, P ≤ P
MAX
l
–1.215 –1.250 –1.285 –1.200 –1.250 –1.300 V
∆V
OUT
∆I
OUT
Load Regulation 10mA ≤ I
OUT
≤ I
MAX
, (Note 3)
T
J
= 25°C, |V
OUT
| ≤ 5V
T
J
= 25°C, |V
OUT
| ≥ 5V
|V
OUT
| ≤ 5V
|V
OUT
| ≥ 5V
l
l
10
0.2
20
0.4
50
1.0
75
1.5
10
0.2
20
0.4
50
1.0
75
1.5
mV
%
mV
%
∆
V
OUT
∆V
IN
Line Regulation 3V ≤ |V
IN
– V
OUT
| ≤ 35V, (Note 2)
T
J
= 25°C
l
0.005
0.01
0.015
0.04
0.01
0.02
0.02
0.05
%/V
%/V
Ripple Rejection V
OUT
= –10V, f = 120Hz
C
ADJ
= 0
C
ADJ
= 10µF
56
70
66
80 66
60
77
dB
dB
Thermal Regulation T
J
= 25°C, 10ms Pulse 0.002 0.02 0.002 0.02 %/W
I
ADJ
Adjust Pin Current
l
65 100 65 100 µA
∆I
ADJ
Adjust Pin Current Change 10mA ≤I
OUT
≤ I
MAX
3V ≤ |V
IN
– V
OUT
| ≤ 35V
l
l
0.2
1.0
2
5
0.5
2
2
5
µA
µA
Minimum Load Current
|V
IN
– V
OUT
| ≤ 35V
|V
IN
– V
OUT
| ≤ 10V
2.5
1.2
5.0
3.0
2.5
1.2
5.0
3.0
mA
mA
I
SC
Current Limit |V
IN
– V
OUT
| ≤ 10V, (Note 3)
|V
IN
– V
OUT
| = 35V, T
J
= 25°C
3
0.5
4.3
1.3
6
2.5
3
0.5
4.3
1.3
6
2.5
A
A
∆V
OUT
∆Temp
Temperature Stability of
Output Voltage
T
MIN
≤ T ≤ T
MAX
l
0.6 1.5 0.6 1.5 %
∆V
OUT
∆Time
Long Term Stability T
A
= 125°C, 1000 Hours 0.3 1.0 0.3 1.0 %
e
n
RMS Output Noise
(% of V
OUT
)
T
A
= 25°C, 10Hz ≤ f ≤ 10kHz 0.003 0.003 %
θ
JC
Thermal Resistance
Junction to Case
T Package
K Package
P Package
1.2 2.0
2.5
1.2
1.8
4.0
2.0
2.7
°C/W
°C/W
°C/W
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Unless otherwise indicated, these specifications apply:
|V
IN
– V
OUT
| = 5V; and I
OUT
= 5mA. Power dissipation is internally limited.
However, these specifications apply for power dissipation up to 30W.
See guaranteed minimum output current curve. I
MAX
= 3A.
Note 3: Testing is done using a pulsed low duty cycle technique. See
thermal regulation specifications for output changes due to heating effects.
Load regulation is measured on the output pin at a point 1/8" below the
base of the package.