参数资料
型号: LT3971IDD#PBF
厂商: Linear Technology
文件页数: 2/28页
文件大小: 0K
描述: IC REG BUCK ADJ 1.2A 10DFN
标准包装: 121
类型: 降压(降压)
输出类型: 可调式
输出数: 1
输出电压: 1.19 V ~ 30 V
输入电压: 4.3 V ~ 38 V
PWM 型: 电流模式,Burst Mode?
频率 - 开关: 200kHz ~ 2MHz
电流 - 输出: 1.2A
同步整流器:
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 10-WFDFN 裸露焊盘
包装: 管件
供应商设备封装: 10-DFN(3x3)
LT3971/LT3971-3.3/LT3971-5
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V IN , EN Voltage .........................................................38V
BOOST Pin Voltage ...................................................55V
BOOST Pin Above SW Pin.........................................30V
FB, V OUT , RT, SYNC, SS Voltage .................................6V
PG, BD Voltage .........................................................30V
Boost Diode Current....................................................1A
PIN CONFIGURATION
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
LT3971
TOP VIEW
LT3971
LT3971
TOP VIEW
3
8 RT
SW
11
GND
BD   1                            10  SYNC
BOOST 2 9 PG
11
GND
V IN 4 7 SS
EN 5 6 FB
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
θ JA = 45°C, θ JC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
LT3971-3.3, LT3971-5
TOP VIEW
TOP VIEW
BD 1 10 SYNC
BOOST 2 9 PG
SW 3 8 RT
V IN 4 7 SS
EN 5 6 FB
MSE PACKAGE
10-LEAD PLASTIC MSOP
θ JA = 45°C, θ JC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
LT3971-3.3, LT3971-5
BD 1 16 GND
NC 2 15 SYNC
BOOST 3 14 PG
NC 4 17 13 RT
SW 5 GND 12 SS
NC 6 11 NC
V IN 7 10 FB
EN 8 9 FB
MSE PACKAGE
16-LEAD PLASTIC MSOP
θ JA = 40°C
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
3
8 RT
SW
11
GND
BD   1                            10  SYNC
BOOST 2 9 PG
11
GND
V IN 4 7 SS
EN 5 6 V OUT
DD PACKAGE
10-LEAD (3mm × 3mm) PLASTIC DFN
θ JA = 45°C, θ JC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
TOP VIEW
BD 1 10 SYNC
BOOST 2 9 PG
SW 3 8 RT
V IN 4 7 SS
EN 5 6 V OUT
MSE PACKAGE
10-LEAD PLASTIC MSOP
θ JA = 45°C, θ JC = 10°C/W
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
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
LT3971EDD#TRPBF
LT3971IDD#TRPBF
LT3971EMSE#TRPBF
LT3971IMSE#TRPBF
LT3971EMSE16#TRPBF
LT3971IMSE16#TRPBF
LT3971EDD-3.3#TRPBF
LT3971IDD-3.3#TRPBF
LT3971EMSE-3.3#TRPBF
LT3971IMSE-3.3#TRPBF
PART MARKING*
LFJF
LFJF
LTFJG
LTFJG
3971
3971
LFRM
LFRM
LTFRN
LTFRN
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
2
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