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LTM8026
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full internal
operating temperature range, otherwise specifications are at T A = 25°C. RUN = 3V, unless otherwise noted. (Note 3)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Input Voltage
Output DC Voltage
I OUT = 1A, R ADJ Open
I OUT = 1A, R ADJ = 499Ω
l
1.2
24
6
V
V
V
Output DC Current
Quiescent Current Into V IN
Line Regulation
Load Regulation
Output RMS Voltage Ripple
Switching Frequency
6V < V IN < 36V, V OUT = 3.3V
RUN = 0V
No Load
6V < V IN < 36V, I OUT = 1A
V IN = 12V, 0A < I OUT < 5A
V IN = 12V, I OUT = 4.5A
R T = 40.2k
R T = 453k
0
0.1
2
0.1
0.7
10
1000
100
5
3
4
A
μA
mA
%
%
mV
kHz
kHz
Voltage at ADJ Pin
Current Out of ADJ Pin
RUN Pin Current
RUN Threshold Voltage (Falling)
ADJ = 0V, V OUT = 1V
RUN = 1.45V
l
1.16
1.47
1.19
100
5.5
1.55
1.22
1.63
V
μA
μA
V
RUN Input Hysteresis
130
mV
CTL_I Control Range
CTL_I Pin Current
0
1.5
1.5
V
μA
CTL_I Current Limit Accuracy
CTL_T Control Range
CTL_I = 1.5V
CTL_I = 0.75V
5.1
2.24
0
5.6
2.8
6.1
3.36
1.5
A
A
V
CTL_T Pin Current
1.5
μA
CTL_T Current Limit Accuracy
V REF Voltage
CTL_T = 1.5V
CTL_T = 0.75V
0.5mA Load
5.1
2.24
1.89
5.6
2.8
6.1
3.36
2.04
A
A
V
SS Pin Current
SYNC Input Low Threshold
SYNC Input High Threshold
SYNC Bias Current
(Note 4)
f SYNC = 400kHz
f SYNC = 400kHz
SYNC = 0V
1.2
–11
0.6
1
μA
V
V
μA
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: This μModule regulator includes overtemperature protection that
is intended to protect the device during momentary overload conditions.
Internal temperature will exceed 125°C when overtemperature protection
is active. Continuous operation above the specified maximum internal
operating junction temperature may impair device reliability.
Note 3: The LTM8026E is guaranteed to meet performance specifications
from 0°C to 125°C internal operating temperature. Specifications over the
full –40°C to 125°C internal operating temperature range are assured by
design, characterization and correlation with statistical process controls.
The LTM8026I is guaranteed to meet specifications over the full –40°C
to 125°C internal operating temperature range. The LTM8026MP is
guaranteed to meet specifications over the full –55°C to 125°C internal
operating temperature range. Note that the maximum internal temperature
is determined by specific operating conditions in conjunction with board
layout, the rated package thermal resistance and other environmental
factors.
Note 4: Current flows out of pin.
8026fb
For more information www.linear.com/LTM8026
3
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