LT3669 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LT3669 Datasheet PDF : 40 Pages
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LT3669/LT3669-2
ABSOLUTE MAXIMUM RATINGS (Notes 1 and 2)
L+, EN/UVLO Voltage (Note 3)..................... –60V to 60V
CQ1, Q2 Voltage........................................... –60V to 60V
(L+ to CQ1), (L+ to Q2) Voltage.................... –60V to 60V
DIO, LDOIN Voltage (Note 3)....................... –0.3V to 60V
DIO Above L+ Voltage................................................90V
BST Voltage...............................................................50V
BST Above SW Voltage..............................................30V
BD Voltage.................................................................30V
LDO Voltage.................................................................8V
LDO Above LDOIN Voltage........................................0.3V
FBOUT, FBLDO, SYNC Voltage........................................6V
CPOR, RT, ILIM Voltage...............................................3V
SR, TXEN1, TXD1, TXEN2, TXD2 Voltage..................30V
SC1, SC2, WAKE, RST, RXD1 Voltage........................30V
Operating Junction Temperature
Range (Notes 4 and 5)
LT3669E............................................. –40°C to 125°C
LT3669I.............................................. –40°C to 125°C
LT3669H............................................. –40°C to 150°C
Storage Temperature Range................... –65°C to 150°C
PIN CONFIGURATION
LT3669
TOP VIEW
28 27 26 25 24 23
SC1 1
22 RT
SC2 2
WAKE 3
RXD1 4
TXEN1 5
TXD1 6
21 FBOUT
20 FBLDO
29
GND
19 LDO
18 LDOIN
17 BD
TXEN2 7
16 BST
TXD2 8
15 SW
9 10 11 12 13 14
LT3669-2
TOP VIEW
28 27 26 25 24 23
SC1 1
22 RT
SC2 2
WAKE 3
RXD1 4
TXEN1 5
TXD1 6
21 FBOUT
20 FBLDO
29
GND
19 LDO
18 LDOIN
17 BD
TXEN2 7
16 BST
TXD2 8
15 SW
9 10 11 12 13 14
UFD PACKAGE
28-LEAD (4mm × 5mm) PLASTIC QFN
θJA = 44°C/W, θJC = 8°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
UFD PACKAGE
28-LEAD (4mm × 5mm) PLASTIC QFN
θJA = 44°C/W, θJC = 8°C/W
EXPOSED PAD (PIN 29) IS GND, MUST BE SOLDERED TO PCB
3669fa
2
For more information www.linear.com/LT3669
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