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elecTrical characTerisTics
temperature range, otherwise specifications are at T
PARAMETER
V
Operating Voltage Range
IN
V
Quiescent Current at Shutdown
IN
V
Quiescent Current
IN
FBX Regulation
FBX Regulation Voltage
FBX Line Regulation
FBX Pin Current
Oscillator
Switching Frequency (f
)
OSC
Minimum On-Time
Minimum Off-Time
Switch
Maximum Switch Current Limit Threshold
Switch R
DS(ON)
Switch Leakage Current
EN/UVLO Logic
EN/UVLO Pin Threshold (Rising)
EN/UVLO Pin Threshold (Falling)
EN/UVLO Pin Current
Soft-Start
Soft-Start Time
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: INTV
cannot be externally driven. No additional components or
CC
loading is allowed on this pin.
Note 3: The LT8330E 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
The
denotes the specifications which apply over the full operating
l
= 25°C. V
= 12V, EN/UVLO = 12V unless otherwise noted.
A
IN
CONDITIONS
V
= 0.2V
EN/UVLO
V
= 1.5V
EN/UVLO
Sleep Mode, Not Switching
Active Mode, Not Switching
FBX > 0V
FBX < 0V
FBX > 0V, 3V < V
< 40V
IN
FBX < 0V, 3V < V
< 40V
IN
FBX = 1.6V, –0.8V
V
= 24V
IN
V
= 24V
IN
V
= 24V
IN
I
= 0.5A
SW
V
= 60V
SW
Start Switching
Stop Switching
V
= 1.6V
EN/UVLO
V
= 24V
IN
For more information
www.linear.com/LT8330
MIN
3
l
l
l
l
l
1.568
l
–0.820
l
–10
l
1.85
l
1.0
l
1.620
l
1.556
l
–40
l
LT8330I is guaranteed over the full –40°C to 125°C operating junction
temperature range. The LT8330H is guaranteed over the full –40°C to
150°C operating junction temperature range. High junction temperatures
degrade operating lifetimes. Operating lifetime is derated at junction
temperatures greater than 125°C.
Note 4: The IC includes overtemperature protection that is intended to
protect the device during overload conditions. Junction temperature will
exceed 150°C when overtemperature protection is active. Continuous
operation above the specified maximum operating junction temperature
will reduce lifetime.
LT8330
TYP
MAX
UNITS
40
0.9
2
µA
2
5
µA
2
5
µA
3.6
9.5
µA
5.5
10
µA
8.5
15
µA
780
1100
µA
840
1200
µA
1.6
1.632
–0.80
–0.780
0.005
0.015
%/V
0.005
0.015
%/V
10
nA
2.0
2.15
MHz
65
105
ns
47
65
ns
1.2
1.4
330
mΩ
0.1
1
µA
1.68
1.745
1.60
1.644
40
nA
1
ms
8330fa
3
V
V
V
A
V
V
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