LT8302E, LT8302E-3 ......................... –40°C to 125°C
LT8302I, LT8302I-3 ........................... –40°C to 125°C
LT8302J, LT8302J-3.......................... –40°C to 150°C
LT8302H, LT8302H-3 ........................ –40°C to 150°C
LT8302MP ......................................... –55°C to 150°C
Storage Temperature Range .................. –65°C to 150°C
Lead Temperature (Soldering, 10 sec)................... 300°C
S8E PACKAGE
8-LEAD PLASTIC SO
θ
JA
= 33°C/W
EXPOSED PAD (PIN 9) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT8302ES8E#PBF
LT8302IS8E#PBF
LT8302JS8E#PBF
LT8302HS8E#PBF
LT8302MPS8E#PBF
LT8302ES8E-3#PBF
LT8302IS8E-3#PBF
LT8302JS8E-3#PBF
LT8302HS8E-3#PBF
AUTOMOTIVE PRODUCTS**
LT8302ES8E#WPBF
LT8302IS8E#WPBF
LT8302JS8E#WPBF
LT8302HS8E#WPBF
LT8302ES8E-3#WPBF
LT8302IS8E-3#WPBF
LT8302JS8E-3#WPBF
LT8302HS8E-3#WPBF
LT8302ES8E#WTRPBF
LT8302IS8E#WTRPBF
LT8302JS8E#WTRPBF
LT8302HS8E#WTRPBF
LT8302ES8E-3#WTRPBF
LT8302IS8E-3#WTRPBF
LT8302JS8E-3#WTRPBF
LT8302HS8E-3#WTRPBF
8302
8302
8302
8302
83023
83023
83023
83023
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 150°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 150°C
TAPE AND REEL
LT8302ES8E#TRPBF
LT8302IS8E#TRPBF
LT8302JS8E#TRPBF
LT8302HS8E#TRPBF
LT8302MPS8E#TRPBF
LT8302ES8E-3#TRPBF
LT8302IS8E-3#TRPBF
LT8302JS8E-3#TRPBF
LT8302HS8E-3#TRPBF
PART MARKING*
8302
8302
8302
8302
8302
83023
83023
83023
83023
PACKAGE DESCRIPTION
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
8-Lead Plastic SO
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 150°C
–55°C to 150°C
–40°C to 125°C
–40°C to 125°C
–40°C to 150°C
–40°C to 150°C
Contact the factory 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.
**Versions
of this part are available with controlled manufacturing to support the quality and reliability requirements of automotive applications. These
models are designated with a #W suffix. Only the automotive grade products shown are available for use in automotive applications. Contact your
local Analog Devices account representative for specific product ordering information and to obtain the specific Automotive Reliability reports for
these models.
2
Rev. G
For more information
www.analog.com
LT8302/LT8302-3
The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
IN
= 5V, V
EN/UVLO
= V
IN
, C
INTVCC
= 1µF to GND, unless otherwise noted.
SYMBOL
V
IN
I
Q
PARAMETER
V
IN
Voltage Range
V
IN
Quiescent Current
V
EN/UVLO
= 0.2V
V
EN/UVLO
= 1.1V
Sleep Mode (Switch Off)
Active Mode (Switch On)
For Lowest Off I
Q
Falling (E, I, H, MP Grades)
Falling (J Grade Only)
V
EN/UVLO
= 0.3V
V
EN/UVLO
= 1.1V
V
EN/UVLO
= 1.3V
I
INTVCC
= 0mA to 10mA
V
INTVCC
= 2.8V
Falling
I
RFB
= 75µA to 125µA
l
l
l
l
ELECTRICAL CHARACTERISTICS
CONDITIONS
l
MIN
3
TYP
0.5
53
106
380
MAX
42
2
UNIT
V
µA
µA
µA
µA
V
V
V
mV
µA
µA
µA
V
mA
V
mV
mV
V
%/V
V
µA
µA
µA
kHz
ns
µs
EN/UVLO Shutdown Threshold
EN/UVLO Enable Threshold
EN/UVLO Enable Threshold
EN/UVLO Enable Hysteresis
I
HYS
V
INTVCC
I
INTVCC
EN/UVLO Hysteresis Current
0.2
1.178
1.160
–0.1
2.3
–0.1
2.85
10
2.39
–50
0.98
–0.01
12
7
11.3
0.75
1.214
1.214
14
0
2.5
0
3
13
2.47
105
50
1.00
0
1.00
15
10
–200
12
160
170
1.02
0.01
18
13
12.7
0.1
2.7
0.1
3.1
20
2.55
1.250
1.268
INTV
CC
Regulation Voltage
INTV
CC
Current Limit
INTV
CC
UVLO Threshold
INTV
CC
UVLO Hysteresis
(R
FB
– V
IN
) Voltage
R
REF
Regulation Voltage
R
REF
Regulation Voltage Line Regulation
3V ≤ V
IN
≤ 42V
V
TC
= 1.2V (LT8302)
V
TC
= 1.2V (LT8302-3)
V
TC
= 0.8V
V
TC
I
TC
f
MIN
t
ON(MIN)
t
OFF(MAX)
I
SW(MAX)
I
SW(MIN)
R
DS(ON)
I
LKG
t
SS
TC Pin Voltage
TC Pin Current
Minimum Switching Frequency
Minimum Switch-On Time
Maximum Switch-Off Time
Maximum Switch Current Limit
Minimum Switch Current Limit
Switch On-Resistance
Switch Leakage Current
Soft-Start Timer
I
SW
= 1.5A
V
SW
= 65V
Backup Timer
3.6
0.70
4.5
0.87
80
0.1
11
5.4
1.04
0.5
A
A
mΩ
µA
ms
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The SW pin is rated to 65V for transients. Depending on the
leakage inductance voltage spike, operating waveforms of the SW pin
should be derated to keep the flyback voltage spike below 65V as shown
in Figure 5.
Note 3:
The LT8302E/LT8302E-3 is guaranteed to meet performance
specifications from 0°C to 125°C junction temperature. Specifications
over the –40°C to 125°C operating junction temperature range are
assured by design, characterization and correlation with statistical process
controls. The LT8302I/LT8302I-3 is guaranteed over the full –40°C to
125°C operating junction temperature range. The LT8302J/LT8302J-3
and LT8302H/LT8302H-3 are guaranteed over the full –40°C to 150°C
operating junction temperature range. The LT8302MP is guaranteed
over the full –55°C to 150°C operating junction temperature range. High
junction temperatures degrade operating lifetimes. Operating lifetime is
derated at junction temperature greater than 125°C.
Note 4:
The LT8302/LT8302-3 includes overtemperature protection that
is intended to protect the devices during momentary overload conditions.
Junction temperature will exceed 150°C when overtemperature protection
is active. Continuous operation above the specified maximum operating
junction temperature may impair device reliability.
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