EXPOSED PAD (PIN 41) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT8708EUHG-1#PBF
LT8708IUHG-1#PBF
LT8708HUHG-1#PBF
TAPE AND REEL
LT8708EUHG-1#TRPBF
LT8708IUHG-1#TRPBF
LT8708HUHG-1#TRPBF
PART MARKING*
87081
87081
87081
PACKAGE DESCRIPTION
40-Lead (5mm × 8mm) Plastic QFN
40-Lead (5mm × 8mm) Plastic QFN
40-Lead (5mm × 8mm) Plastic QFN
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
Consult ADI Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications.
Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
For more information
www.analog.com
3
Rev 0
LT8708-1
ELECTRICAL CHARACTERISTICS
PARAMETER
Voltage Supplies and Regulators
V
INCHIP
Operating Voltage Range
V
INCHIP
Quiescent Current
V
INCHIP
Quiescent Current in Shutdown
EXTV
CC
Switchover Voltage
EXTV
CC
Switchover Hysteresis
INTV
CC
Current Limit
Max Current Draw from INTV
CC
and LDO33 Pins
Combined. Regulated from V
INCHIP
or EXTV
CC
(12V)
INTV
CC
= 5.25V
l
INTV
CC
= 4.4V
l
Regulated from V
INCHIP
, I
INTVCC
= 20mA
Regulated from EXTV
CC
(12V), I
INTVCC
= 20mA
I
INTVCC
= 0mA to 50mA
INTV
CC
Falling, GATEV
CC
Connected to INTV
CC
GATEV
CC
Connected to INTV
CC
V
INCHIP
– V
INTVCC
, I
INTVCC
= 20mA
5mA from LDO33 Pin
I
LDO33
= 0.1mA to 5mA
SYNC = 3V
LDO33 Falling
l
l
l
l
l
The
l
denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T
A
= 25°C. V
INCHIP
=12V,
SHDN
= 3V, DIR = 3.3V unless otherwise noted. (Note 3).
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Embedded System
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