LT1085-12-220M Seme LAB, LT1085-12-220M Datasheet - Page 3

• Manufacturer Part Number: LT1085-12-220M
• Description: LOW DROPOUT 3 AMP POSITIVE VOLTAGE REGULATOR
• Manufacturer: Seme LAB

ELECTRICAL CHARACTERISTICS
Notes:
1. See thermal regulation specifications for changes in output voltage due to heating effects. Load and line regulation are
measured at a constant junction temperature by low duty cycle pulse testing. Load regulation is measured at the output
lead
2. Line and load regulation are guaranteed up to the maximum power dissipation of 30W. Power dissipation is determined
by the input - output differential and the output current. Guaranteed maximum power dissipation will not be available over
the full input - output voltage range.
3. Dropout voltage is specified over the full output current range of the device.
Semelab plc.
I
I
REG
R
I
D
T
V
R
CL
Q
PIN
I
S
N
A
q
PIN
JC
»
(THERM)
1 /
8
” from the package.
Current Limit
Quiescent Current
Minimum Load Current
Ripple Rejection
Adjust Pin Current
Adjust Pin Current Change
Temperature Stability
Long Term Stability
RMS Output Noise
Thermal Resistance
Junction – Case
Parameter
Thermal Regulation
Telephone [phone]. Fax [phone].
E-mail:
[e-mail]
4
Voltage Test Conditions
Output
ADJ.
ADJ.
ADJ.
ADJ.
12
12
5
5
Website:
V
V
V
V
V
T
T
C
f = 120Hz
I
V
I
T
T
f = 10Hz to 10kHz
O
O
P
J
J
A
IN
IN
IN
IN
IN
IN
OUT
= 3A
= 10mA to 3A
= –55 to 150°C
= –55 to 150°C
= 30ms
= 125°C
– V
– V
£
£
– V
– V
(T
20V
25V
= 25
OUT
OUT
OUT
OUT
J
http://www.semelab.co.uk
= –55 to +150°C unless otherwise stated)
m
= 5V
= 25V
= 25V
= 1.5 to 15V
F Tantalum
T
T
T
T
T
T
V
V
V
C
T
T
T = 1000 Hrs
T
Control Circuitry
Power Transistor
J
J
J
J
J
A
J
J
A
IN
IN
IN
ADJ
= –55 to 150°C
= –55 to 150°C
= –55 to 150°C
= –55 to 150°C
= –55 to 150°C
= –55 to 150°C
= –55 to 150°C
= 25°C
= 25°C
= 8V
= 15V
– V
= 25
OUT
m
F
= 3V
LT1085–220M–05
LT1085–05–220M
LT1085–12–220M
MILITARY VERSION
Min.
3.2
0.2
60
54
60
0.004
0.003
Typ. Max.
TBA
TBA
0.5
0.2
0.5
0.3
68
60
75
55
4
5
5
5
Prelim. 10/95
0.02
120
10
10
10
5
1
°C/W
Unit
%/W
mA
m
m
dB
%
%
%
A
A
A