参数资料
型号: LT1082IQ#TR
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 2.8 A SWITCHING REGULATOR, 75 kHz SWITCHING FREQ-MAX, PSSO5
封装: PLASTIC, D2PAK-5
文件页数: 5/12页
文件大小: 179K
代理商: LT1082IQ#TR
2
LT1082
sn1082 1082fas
A
U
G
W
A
W
U
W
A
R
BSOLUTEXI
TI
S
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
Operating Junction Temperature Range
LT1082M (OBSOLETE) ............... – 55
°C to 150°C
LT1082I ........................................... – 40
°C to 125°C
LT1082C ............................................... 0
°C to 100°C
ELECTRICAL C
C
HARA TERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VREF
Reference Voltage
Measured at Feedback Pin
1.224 1.244
1.264
V
VC = 0.8V
q
1.214 1.244
1.274
V
IB
Feedback Input Current
VFB = VREF
350
750
nA
q
1100
nA
gm
Error Amplifier
IC = ±25A
3000
4400
6000
mho
Transconductance
q
2400
7000
mho
Error Amplifier Source or
VC = 1.5V
150
200
400
A
Sink Current
q
120
400
A
Error Amplifier Clamp
Hi Clamp, VFB = 1V
1.8
2.3
V
Voltage
Lo Clamp, VFB = 1.5V
0.12
0.22
0.36
V
Reference Voltage Line Regulation
3V
≤ VIN ≤ VMAX, VC = 0.8V
q
0.03
%/V
AV
Error Amplifier Voltage Gain
0.9V
≤ VC ≤ 1.4V
350
650
V/V
Minimum Input Voltage
q
2.6
3.0
V
1
2
3
4
8
7
6
5
TOP VIEW
GND
VC
FB
NC
E2
VSW
E1
VIN
N8 PACKAGE
8-LEAD PLASTIC DIP
Q PACKAGE
5-LEAD DD
VIN
VSW
GND
FB
VC
FRONT VIEW
5
4
3
2
1
T PACKAGE
5-LEAD TO-220
VIN
VSW
GND
FB
VC
FRONT VIEW
5
4
3
2
1
TJMAX = 100°C, θJA = 90°C/W (CN8)
TJMAX = 125°C, θJA = 90°C/W (IN8)
TJMAX = 100°C, θJA = 40°C/ W (CQ)
TJMAX = 125°C, θJA = 40°C/ W (IQ)
NOTE:
θJA VARIES FROM 25°C/W TO 50°C/W
DEPENDING ON BOARD COMPOSITION.
TJMAX = 100°C, θJA = 75°C/ W, θJC = 8°C/ W (CT)
TJMAX = 125°C, θJA = 75°C/ W, θJC = 8°C/ W (IT)
WU
U
PACKAGE/ORDER I FOR ATIO
ORDER PART NUMBER
LT1082CN8
LT1082IN8
LT1082CQ
LT1082IQ
LT1082CT
LT1082IT
Consult LTC Marketing for parts specified with wider operating temperature ranges.
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 15V, VC = 0.5V, VFB = VREF, output pin open, unless otherwise
specified.
(Note 1)
LT1082MJ8
J8 PACKAGE
8-LEAD CERAMIC DIP
TJMAX = 150°C, θJA = 100°C/W (MJ8)
OBSOLETE PACKAGE
Consider the Q Package for Alternate Source
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