參數(shù)資料
型號: LT3641IUFD#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 3.4 A DUAL SWITCHING CONTROLLER, 2350 kHz SWITCHING FREQ-MAX, PQCC28
封裝: 4 X 5 MM, LEAD FREE, PLASTIC, MO-220, QFN-28
文件頁數(shù): 12/28頁
文件大?。?/td> 416K
代理商: LT3641IUFD#PBF
LT3641
2
3641f
ABSOLUTE MAXIMUM RATINGS
VIN, EN/UVLO Voltage (Note 7) .................................55V
WDE Voltage .............................................................30V
BST Above SW, SW1 Voltage ....................... –0.3V to 6V
SW1 Above SW Voltage ............................... –0.3V to 6V
VIN2, SYNC, EN2, PGOOD2, WDI,
WDO, RST1, RST2, Voltages ....................... –0.3V to 6V
SS1, SS2, FB1, FB2, RT, CWDT,
(Note 1)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
FE PACKAGE
28-LEAD PLASTIC TSSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
FB2
PGOOD2
EN/UVLO
SYNC
SS1
FB1
RT
RST2
RST1
WDO
CWDT
CPOR
WDE
WDI
SS2
EN2
GND
SW2
VIN2
GND
VIN
BST
SW
SW1
DA
NC
GND
29
GND
θJA = 30°C/W, θJC = 8°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
9
10
TOP VIEW
UFD PACKAGE
28-LEAD (4mm
× 5mm) PLASTIC QFN
11 12 13
28 27 26 25 24
14
23
6
5
4
3
2
1
SYNC
SS1
FB1
RT
RST2
RST1
WDO
CWDT
SW2
VIN2
GND
VIN
BST
SW
SW1
DA
EN/UVLO
PGOOD2
FB2
SS2
EN2
GND
CPOR
WDE
WDI
GND
NC
7
17
18
19
20
21
22
16
8
15
29
GND
θJA = 43°C/W, θJC = 3.4°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LT3641EFE#PBF
LT3641EFE#TRPBF
LT3641FE
28-Lead Plastic TSSOP
–40°C to 125°C
LT3641IFE#PBF
LT3641IFE#TRPBF
LT3641FE
28-Lead Plastic TSSOP
–40°C to 125°C
LT3641EUFD#PBF
LT3641EUFD#TRPBF
3641
28-Lead (4mm
× 5mm) Plastic QFN
–40°C to 125°C
LT3641IUFD#PBF
LT3641IUFD#TRPBF
3641
28-Lead (4mm
× 5mm) Plastic QFN
–40°C to 125°C
Consult LTC Marketing for parts specied with wider operating temperature ranges. *The temperature grade is identied by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based nish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specications, go to: http://www.linear.com/tapeandreel/
CPOR Voltages……….............................. –0.3V to 2.5V
SW2 Voltage ................................ –0.3V to (VIN2 + 0.3V)
Operating Junction Temperature Range (Note 2)
LT3641E ................................................. –40°C to 125°C
LT3641I .................................................. –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Lead Temperature, FE Only (Soldering, 10 sec) .... 300°C
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