LTC1540
ABSOLUTE MAXIMUM RATINGS (Note 1)
+
Voltage
OUT Short-Circuit Duration (V ≤ 5.5V) ..... Continuous
Power Dissipation ............................................ 500mW
Operating Temperature Range
LTC1540C ............................................... 0°C to 70°C
LTC1540I .............................................–40°C to 85°C
Storage Temperature Range ................ –65°C to 150°C
(DD Package)..................................... –65°C to 125°C
Lead Temperature (Soldering, 10 sec)...................300°C
+
–
–
+
–
+
+
V to V , V to GND, GND to V .............12V to –0.3V
+
–
IN , IN , HYST................... (V + 0.3V) to (V – 0.3V)
–
REF .................................... (V + 0.3V) to (V – 0.3V)
+
OUT ............................... (V + 0.3V) to (GND – 0.3V)
Current
+
–
IN , IN , HYST...................................................20mA
REF ....................................................................20mA
OUT ...................................................................50mA
PIN CONFIGURATION
TOP VIEW
TOP VIEW
TOP VIEW
GND
1
2
3
4
8
7
6
5
OUT
GND
1
2
3
4
8
7
6
5
OUT
–
+
GND
1
2
3
4
8 OUT
7 V
6 REF
5 HYST
V
V
–
+
9
–
+
V
V
V
IN
IN
–
+
V
+
–
IN
REF
+
IN
REF
–
IN
HYST
–
IN
HYST
MS8 PACKAGE
8-LEAD PLASTIC MSOP
S8 PACKAGE
8-LEAD PLASTIC SO
DD PACKAGE
T
JMAX
= 150°C, θ = 250°C/W
8-LEAD (3mm × 3mm) PLASTIC DFN
JA
T
= 125°C, θ = 160°C/W (NOTE 2) UNDERSIDE METAL
T
JMAX
= 150°C, θ = 175°C/W
JA
JMAX
JA
–
CONNECTED TO V (PCB CONNECTION OPTIONAL)
ORDER INFORMATION
http://www.linear.com/product/LTC1540#orderinfo
LEAD FREE FINISH
LTC1540CDD#PBF
LTC1540IDD#PBF
LTC1540CS8#PBF
LTC1540IS8#PBF
LTC1540CMS8#PBF
LTC1540IMS8#PBF
TAPE AND REEL
*PART MARKING
LAAS
PACKAGE DESCRIPTION
TEMPERATURE RANGE
0°C to 70°C
LTC1540CDD#TRPBF
LTC1540IDD#TRPBF
LTC1540CS8#TRPBF
LTC1540IS8#TRPBF
LTC1540CMS8#TRPBF
LTC1540IMS8#TRPBF
8-Lead (3mm × 3mm) Plastic DFN
8-Lead (3mm × 3mm) Plastic DFN
8-Lead Plastic SO
LAAS
–40°C to 85°C
0°C to 70°C
1540
1540I
8-Lead Plastic SO
–40°C to 85°C
0°C to 70°C
LTCE
8-Lead Plastic MSOP
LTADV
8-Lead Plastic MSOP
–40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
1540fb
2
For more information www.linear.com/LTC1540
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