參數(shù)資料
型號： 522960E
英文描述： Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits
中文描述： 集成電路
文件頁數(shù)： 2/12頁
文件大小： 287K
代理商： 522960E
2
LT1175
ABSOLUTE
AXI
U
RATIU
W
Input Voltage (Transient 1 sec, Note 10) ................ 25V
Input Voltage (Continuous)..................................... 20V
Input-to-Output Differential Voltage (Note 11)........ 20V
5V Sense Pin (with Respect to GND Pin)........ 2V, –10V
ADJ Sense Pin
(with Respect to Output Pin) ................... 20V, –0.5V
5V Sense Pin
(with Respect to Output Pin) ..................... 20V, – 7V
Output Reverse Voltage ............................................ 2V
SHDN Pin to GND Pin Voltage ...................... 15V, –20V
W
W
SHDN Pin to V
IN
Pin Voltage .......................... 30V, –5V
Operating Junction Temperature Range
LT1175C..............................................0
°
C to 125
°
C
LT1175I.......................................... –40
°
C to 125
°
C
Ambient Operating Temperature Range
LT1175C................................................0
°
C to 70
°
C
LT1175I............................................ –40
°
C to 85
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
PACKAGE/ORDER I
FOR
ATIO
W
U
U
ELECTRICAL CHARACTERISTICS
V
OUT
= 5V; V
IN
= 7V, I
OUT
= 0, V
SHDN
= 3V, I
LIM2
and I
LIM4
tied to V
IN
, T
J
= 25
°
C, unless otherwise noted. To avoid confusion with
“min” and “max” as applied to negative voltages, all voltages are shown as absolute values except where polarity is not obvious.
PARAMETER
Feedback Sense Voltage
CONDITIONS
Adjustable Part
Fixed 5V Part
Adjustable, Measured at 3.8V Sense
Fixed 5V
V
IN
– V
OUT
= 1V to V
IN
= 20V, I
OUT
= 0A to 500mA
P = 0 to P
MAX
, T
J
= T
MIN
to T
MAX
(Note 2)
V
IN
– V
OUT
≤
12V
MIN
3.743
4.93
TYP
3.8
5.0
0.5
0.5
1.5
MAX
3.857
5.075
1.5
1.5
2.5
UNITS
V
V
Output Voltage Initial Accuracy
%
%
%
Output Voltage Accuracy (All Conditions)
G
Quiescent Input Supply Current
45
65
80
μ
A
μ
A
G
ORDER
PART NUMBER
1
2
3
FRONT VIEW
TAB IS
INPUT
GND
V
IN
OUTPUT
ST PACKAGE
3-LEAD PLASTIC SO
ORDER
PART NUMBER
SHDN
GND
INPUT
SENSE
OUTPUT
Q PACKAGE
5-LEAD PLASTIC DD
FRONT VIEW
TAB
IS
INPUT
5
4
3
2
1
LT1175CN8
LT1175CN8-5
LT1175IN8
LT1175IN8-5
ORDER
PART NUMBER
ORDER
PART NUMBER
ORDER
PART NUMBER
θ
= 50
°
C/W WITH BACKPLANE
AND 10cm
2
TOPSIDE LAND
SOLDERED TO TAB
θ
= 27
°
C/W TO 60
°
C/W DEPENDING
ON PC MOUNTING. SEE DATA SHEET
FOR DETAILS
LT1175CT
LT1175CT-5
LT1175IT
LT1175IT-5
LT1175CST-5
LT1175IST-5
LT1175CQ
LT1175CQ-5
LT1175IQ
LT1175IQ-5
θ
= 60
°
C/W TO 100
°
C/W DEPENDING
ON PC BOARD LAYOUT
T PACKAGE
5-LEAD PLASTIC TO-220
FRONT VIEW
5
4
3
2
1
SHDN
GND
INPUT
SENSE
OUTPUT
TAB IS
INPUT
θ
JA
= 50
°
C/W,
θ
JC
= 5
°
C/W
Consult factory for Military grade parts.
PINS 1, 8 ARE INTERNALLY
CONNECTED TO DIE
ATTACH PADDLE FOR HEAT
SINKING. ELECTRICAL
CONTACT CAN BE MADE TO
EITHER PIN. FOR BEST
THERMAL RESISTANCE,
PINS 1, 8 SHOULD BE
CONNECTED TO AN
EXPANDED LAND THAT IS
OVER AN INTERNAL OR
BACKSIDE PLANE.
SEE APPLICATIONS
INFORMATION
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
V
IN
I
LIM2
OUTPUT
SENSE
V
IN
I
LIM4
SHDN
GND
LT1175CS8
LT1175CS8-5
LT1175IS8
LT1175IS8-5
S8 PART MARKING
1175
11755
1175I
1175I5
θ
= 80
°
C/W TO 120
°
C/W DEPENDING
ON PC BOARD LAYOUT
1
2
3
4
8
7
6
5
TOP VIEW
V
IN
I
LIM2
OUTPUT
SENSE
V
IN
I
LIM4
SHDN
GND
N8 PACKAGE
8-LEAD PDIP
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