LT3971 Просмотр технического описания (PDF) - Linear Technology
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LT3971 Datasheet PDF : 28 Pages
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LT3971/LT3971-3.3/LT3971-5
ABSOLUTE MAXIMUM RATINGS (Note 1)
VIN, EN Voltage..........................................................38V
BOOST Pin Voltage....................................................55V
BOOST Pin Above SW Pin..........................................30V
FB, VOUT, RT, SYNC, SS Voltage..................................6V
PG, BD Voltage..........................................................30V
Boost Diode Current.....................................................1A
Operating Junction Temperature Range (Note 2)
LT3971E.............................................. –40°C to 125°C
LT3971I............................................... –40°C to 125°C
Storage Temperature Range............... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
(MSE Only)........................................................ 300°C
PIN CONFIGURATION
LT3971
TOP VIEW
BD 1
BOOST 2
SW 3
VIN 4
EN 5
10 SYNC
9 PG
11
GND
8 RT
7 SS
6 FB
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
θJA = 45°C, θJC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
LT3971
BD 1
BOOST 2
SW 3
VIN 4
EN 5
TOP VIEW
11
GND
10 SYNC
9 PG
8 RT
7 SS
6 FB
MSE PACKAGE
10-LEAD PLASTIC MSOP
θJA = 45°C, θJC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
LT3971
BD 1
NC 2
BOOST 3
NC 4
SW 5
NC 6
VIN 7
EN 8
TOP VIEW
17
GND
16 GND
15 SYNC
14 PG
13 RT
12 SS
11 NC
10 FB
9 FB
MSE PACKAGE
16-LEAD PLASTIC MSOP
θJA = 40°C
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
LT3971-3.3, LT3971-5
LT3971-3.3, LT3971-5
TOP VIEW
BD 1
BOOST 2
SW 3
VIN 4
EN 5
10 SYNC
9 PG
11
GND
8 RT
7 SS
6 VOUT
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
θJA = 45°C, θJC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
TOP VIEW
BD 1
10 SYNC
BOOST 2
SW 3
VIN 4
11
GND
9 PG
8 RT
7 SS
EN 5
6 VOUT
MSE PACKAGE
10-LEAD PLASTIC MSOP
θJA = 45°C, θJC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT3971EDD#PBF
LT3971IDD#PBF
LT3971EMSE#PBF
LT3971IMSE#PBF
LT3971EMSE16#PBF
LT3971IMSE16#PBF
LT3971EDD-3.3#PBF
LT3971IDD-3.3#PBF
LT3971EMSE-3.3#PBF
LT3971IMSE-3.3#PBF
TAPE AND REEL
PART MARKING*
LT3971EDD#TRPBF
LFJF
LT3971IDD#TRPBF
LFJF
LT3971EMSE#TRPBF LTFJG
LT3971IMSE#TRPBF
LTFJG
LT3971EMSE16#TRPBF 3971
LT3971IMSE16#TRPBF 3971
LT3971EDD-3.3#TRPBF LFRM
LT3971IDD-3.3#TRPBF LFRM
LT3971EMSE-3.3#TRPBF LTFRN
LT3971IMSE-3.3#TRPBF LTFRN
2
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
10-Lead Plastic MSOP
10-Lead Plastic MSOP
16-Lead Plastic MSOP
16-Lead Plastic MSOP
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
10-Lead Plastic MSOP
10-Lead Plastic MSOP
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
3971fd
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