鈥?/div>
Low Dropout Performance
Fixed or Adjustable Voltages
Fixed Output Voltages of 5V & 12V
Output Current 3A
Line Regulation 0.015% / V Typical.
Load Regulation 0.1% Typical.
Military Temperature Range (鈥?5 to +150擄C)
16.38
16.89
13.39
13.64
1 2 3
12.70
19.05
0.89
1.14
2.54
BSC
2.65
2.75
BLOCK DIAGRAM
V
IN
Pinouts
Pin
1
2
3
Fixed
Adjustable
GROUND
ADJUST
OUTPUT
OUTPUT
INPUT
INPUT
Case is ISOLATED
THERMAL
LIMIT
Ordering Information
LT1085鈥?20M
LT1085鈥?5鈥?20M
LT1085鈥?2鈥?20M
Positive Adjustable Regulator
Fixed +5V Regulator
Fixed +12V Regulator
V
ADJ
V
OUT
ABSOLUTE MAXIMUM RATINGS
(T
case
= 25擄C unless otherwise stated)
V
IN
V
I-O
P
D
V
IN
Input Voltage
Input鈥揙utput Differential Voltage
Power Dissipation
Operating Input Voltage
Adjustable
5 Volt
12 Volt
Control
Power
5V, 12V
Adjustable
30V
35V
Internally limited
25V
20V
25V
鈥?5 to 150擄C
鈥?5 to 200擄C
鈥?5 to 150擄C
300擄C
T
J
T
STG
T
LEAD
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (for 10 sec.)
* Although the devices鈥?maximum operating voltage is limited (20V for the 5V device, and 25V for the 12V and adjustable devices) the devices are
guaranteed to withstand transient input voltages up to 30V. For input voltages greater than the maximum operating input voltage, some degradation of
specifications will occur. For 5V and 12V devices operating at input-output voltage differentials >15V, a minimum external load of 5mA is required to
maintain regulation.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
sales@semelab.co.uk
Website:
http://www.semelab.co.uk
Prelim. 10/95
1
2
3
