LT1175 データシートの表示（PDF） - Linear Technology
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LT1175 Datasheet PDF : 18 Pages
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LT1175
Absolute Maximum Ratings
(Note 1)
Input Voltage (Transient 1 sec, Note 11)....................25V
Input Voltage (Continuous)........................................20V
Input-to-Output Differential Voltage (Note 12)...........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 (Note 2)........ 13.5V, –20V
SHDN Pin to VIN 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
Pin Configuration
VIN 1
ILIM2 2
OUTPUT 3
SENSE 4
TOP VIEW
8 VIN
7 ILIM4
6 SHDN
5 GND
N8 PACKAGE
8-LEAD PDIP
θJA = 80°C/W TO 120°C/W
DEPENDING ON PC BOARD LAYOUT
FRONT VIEW
5
SHDN
TAB
4
GND
IS
3
VIN
VIN
2
SENSE
1
OUTPUT
Q PACKAGE
5-LEAD PLASTIC DD
θJA = 27°C/W TO 60°C/W
DEPENDING ON PC MOUNTING.
SEE DATA SHEET FOR DETAILS
TAB IS
VIN
FRONT VIEW
3 GND
2 VIN
1 OUTPUT
ST PACKAGE
3-LEAD PLASTIC SOT-223
θJA = 50°C/W
WITH BACKPLANE AND 10cm2
TOPSIDE LAND SOLDERED TO TAB
TOP VIEW
VIN 1
ILIM2 2
OUTPUT 3
SENSE 4
8 VIN
7 ILIM4
6 SHDN
5 GND
S8 PACKAGE
8-LEAD PLASTIC SO
θJA = 60°C/W TO 100°C/W
DEPENDING ON PC BOARD LAYOUT
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
TAB IS
VIN
FRONT VIEW
5
4
3
2
1
T PACKAGE
5-LEAD PLASTIC TO-220
θJA = 50°C/W, θJC = 5°C/W
SHDN
GND
VIN
SENSE
OUTPUT
1175fe
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