lt3689-5 Linear Technology Corporation, lt3689-5 Datasheet - Page 2

• Manufacturer Part Number: lt3689-5
• Description: 700ma Step-down Regulator With Power-on Reset And Watchdog Timer
• Manufacturer: Linear Technology Corporation

ABSOLUTE MAXIMUM RATINGS
LT3689/LT3689-5
V
BST Voltage ..............................................................60V
BST Above SW Voltage .............................................30V
OUT, WDE Voltage .....................................................30V
FB, RT, SYNC, W/T, WDI, RST, WDO Voltage ...............6V
C
PIN CONFIGURATION
ORDER INFORMATION
LEAD FREE FINISH
LT3689EMSE#PBF
LT3689IMSE#PBF
LT3689HMSE#PBF
LT3689EMSE-5#PBF
LT3689IMSE-5#PBF
LT3689HMSE-5#PBF
LT3689EUD#PBF
LT3689IUD#PBF
LT3689EUD-5#PBF
LT3689IUD-5#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
2
IN
WDT
, EN/UVLO Voltage (Note 2) .................................60V
, C
POR
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
Voltage .....................................................3V
SYNC
C
WDO
C
WDT
OUT
BST
POR
V
RT
IN
θ
JA
1
2
3
4
5
6
7
8
16-LEAD PLASTIC MSOP
TAPE AND REEL
LT3689EMSE#TRPBF
LT3689IMSE#TRPBF
LT3689HMSE#TRPBF
LT3689EMSE-5#TRPBF
LT3689IMSE-5#TRPBF
LT3689HMSE-5#TRPBF
LT3689EUD#TRPBF
LT3689IUD#TRPBF
LT3689EUD-5#TRPBF
LT3689IUD-5#TRPBF
= 43°C/W, θ
MSE PACKAGE
TOP VIEW
17
JC
= 4.3°C/W
16
15
14
13
12
11
10
9
RST
WDI
W/T
WDE
FB
EN/UVLO
DA
SW
http://www.linear.com/leadfree/
PART MARKING*
3689
3689
3689
36895
36895
36895
LDND
LDND
LFFM
LFFM
http://www.linear.com/tapeandreel/
(Note 1)
Operating Junction Temperature Range (Note 3)
Storage Temperature Range ................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec)
PACKAGE DESCRIPTION
16-Lead Plastic MSOP with Exposed Pad
16-Lead Plastic MSOP with Exposed Pad
16-Lead Plastic MSOP with Exposed Pad
16-Lead Plastic MSOP with Exposed Pad
16-Lead Plastic MSOP with Exposed Pad
16-Lead Plastic MSOP with Exposed Pad
16-Lead (3mm × 3mm) Plastic QFN
16-Lead (3mm × 3mm) Plastic QFN
16-Lead (3mm × 3mm) Plastic QFN
16-Lead (3mm × 3mm) Plastic QFN
LT3689E ............................................. –40°C to 125°C
LT3689I .............................................. –40°C to 125°C
LT3689H ............................................ –40°C to 150°C
MSOP ............................................................... 300°C
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
16-LEAD (3mm 3mm) PLASTIC QFN
BST
SW
V
DA
IN
θ
1
2
3
4
JA
= 68°C/W, θ
16 15 14 13
5
UD PACKAGE
TOP VIEW
6
17
7
JC
= 4.2°C/W
8
12
11
10
9
C
WDO
RST
WDI
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
WDT
3689fa