LT1082
ABSOLUTE AXI U RATI GS
Supply Voltage ....................................................... 75V
Switch Output Voltage .......................................... 100V
Feedback Pin Voltage (Transient, 1ms) ................ ±15V
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
W W W
U
(Note 1)
Operating Junction Temperature Range
LT1082M (OBSOLETE) ............... – 55°C to 150°C
LT1082I ........................................... – 40°C to 125°C
LT1082C............................................... 0°C to 100°C
W
U
/O
PACKAGE RDER I FOR ATIO
TOP VIEW
FRONT VIEW
FRONT VIEW
GND
1
2
3
4
E2
V
8
7
6
5
5
4
3
2
1
V
V
GND
FB
5
4
3
2
1
V
V
IN
SW
IN
SW
V
C
SW
GND
FB
FB
E1
V
V
C
NC
V
IN
C
Q PACKAGE
5-LEAD DD
T PACKAGE
5-LEAD TO-220
N8 PACKAGE
8-LEAD PLASTIC DIP
TJMAX = 100°C, θJA = 90°C/W (CN8)
JMAX = 125°C, θJA = 90°C/W (IN8)
T
JMAX = 100°C, θJA = 40°C/W (CQ)
TJMAX = 100°C, θJA = 75°C/W, θJC = 8°C/W (CT)
TJMAX = 125°C, θJA = 75°C/W, θJC = 8°C/W (IT)
T
TJMAX = 125°C, θJA = 40°C/W (IQ)
NOTE: θJA VARIES FROM 25°C/W TO 50°C/W
DEPENDING ON BOARD COMPOSITION.
ORDER PART NUMBER
LT1082CN8
LT1082IN8
ORDER PART NUMBER
ORDER PART NUMBER
J8 PACKAGE
LT1082CQ
LT1082IQ
LT1082CT
LT1082IT
8-LEAD CERAMIC DIP
TJMAX = 150°C, θJA = 100°C/W (MJ8)
LT1082MJ8
OBSOLETE PACKAGE
Consider the Q Package for Alternate Source
Consult LTC Marketing for parts specified with wider operating temperature ranges.
The ● denotes the specifications which apply over the full operating
ELECTRICAL CHARACTERISTICS
specified.
temperature range, otherwise specifications are at TA = 25°C. VIN = 15V, VC = 0.5V, VFB = VREF, output pin open, unless otherwise
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
Reference Voltage
Measured at Feedback Pin
V = 0.8V
C
1.224 1.244
1.214 1.244
1.264
1.274
V
V
REF
●
●
●
●
I
Feedback Input Current
V
= V
REF
350
750
1100
nA
nA
B
FB
g
Error Amplifier
Transconductance
∆I = ±25µA
C
3000 4400
2400
6000
7000
µmho
µmho
m
Error Amplifier Source or
Sink Current
V = 1.5V
C
150
120
200
400
400
µA
µA
Error Amplifier Clamp
Voltage
Hi Clamp, V = 1V
1.8
0.12 0.22
2.3
0.36
V
V
FB
Lo Clamp, V = 1.5V
FB
Reference Voltage Line Regulation
Error Amplifier Voltage Gain
Minimum Input Voltage
3V ≤ V ≤ V
, V = 0.8V
●
●
0.03
%/V
V/V
V
IN
MAX
C
A
0.9V ≤ V ≤ 1.4V
350
650
2.6
V
C
3.0
sn1082 1082fas
2
Linear Systems [ Linear Systems ]
