lt1085-220m Semelab Group, lt1085-220m Datasheet

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lt1085-220m

Manufacturer Part Number
lt1085-220m
Description
Low Dropout 3 Amp Positive Voltage Regulator
Manufacturer
Semelab Group
Datasheet
ABSOLUTE MAXIMUM RATINGS
V
V
P
V
T
T
T
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.
LT1085–220M
LT1085–05–220M
LT1085–12–220M
J
STG
LEAD
IN
I-O
D
IN
* Although the devices’ maximum operating voltage is limited (20V for the 5V device, and 25V for the 12V and adjustable devices) the devices are
Pin
1
2
3
TO–220 Isolated Metal Package
Input Voltage
Input–Output Differential Voltage
Power Dissipation
Operating Input Voltage
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (for 10 sec.)
Ordering Information
Case is ISOLATED
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail:
GROUND
OUTPUT
INPUT
Fixed
1 2 3
2.54
BSC
Pinouts
Positive Adjustable Regulator
Fixed +5V Regulator
Fixed +12V Regulator
10.41
10.67
sales@semelab.co.uk
3.56
3.81
Dia.
0.70
0.90
Adjustable
OUTPUT
ADJUST
INPUT
2.65
2.75
4.70
5.00
0.89
1.14
Website:
(T
case
http://www.semelab.co.uk
5V, 12V
Adjustable
Adjustable
5 Volt
12 Volt
= 25°C unless otherwise stated)
BLOCK DIAGRAM
FEATURES
• 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 (–55 to +150°C)
VOLTAGE REGULATOR
Control
Power
3 AMP POSITIVE
V
LOW DROPOUT
ADJ
THERMAL
LIMIT
LT1085–220M–05
LT1085–05–220M
LT1085–12–220M
V
IN
MILITARY VERSION
Internally limited
–55 to 150°C
–55 to 200°C
–65 to 150°C
300°C
30V
35V
25V
20V
25V
V
OUT
Prelim. 10/95

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lt1085-220m Summary of contents

Page 1

... Adjustable ADJUST OUTPUT INPUT (T = 25°C unless otherwise stated) case 5V, 12V Adjustable Adjustable 5 Volt 12 Volt Website: http://www.semelab.co.uk LT1085–220M–05 LT1085–05–220M LT1085–12–220M MILITARY VERSION LOW DROPOUT 3 AMP POSITIVE V IN THERMAL LIMIT V V ADJ OUT 30V 35V ...

Page 2

... The LT1085 is pin compatible with older 3 terminal adjustable regulators new devices; however, this is usually included in most regulator designs. Unlike PNP regulators, where up to 10% of the output current is wasted as quiescent current, the LT1085 quiescent current flows into the load, increasing efficiency. ...

Page 3

... 125° 1000 Hrs 10Hz to 10kHz T Control Circuitry Power Transistor Website: http://www.semelab.co.uk LT1085–220M–05 LT1085–05–220M LT1085–12–220M MILITARY VERSION Min. Typ. Max. = –55 to 150°C 3 –55 to 150°C 0.2 0 –55 to 150° – ...

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