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LTM8052/LTM8052A
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
CTL_T, CTL_I = 1.5V
V IN = 12V, RUN = 0V
V IN = 12V, 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
–6
0.1
17
0.1
0.7
10
1000
100
5
3
30
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
1.49
1.19
100
5.5
1.55
1.22
1.61
V
μA
μA
V
RUN Input Hysteresis
160
mV
CTL_I Control Range
CTL_I Pin Current
0
1.5
1.5
V
μA
CTL_I Positive Current Limit
CTL_I Negative Current Limit
CTL_T Control Range
CTL_I = 1.5V
CTL_I = 0.75V
CTL_I = 1.5V
CTL_I = 0.75V
5.1
2.24
–8.5
–5.7
0
5.6
2.8
–7.7
–5.1
6.1
3.36
–6.9
–4.5
1.5
A
A
A
A
V
CTL_T Pin Current
1.5
μA
CTL_T Positive Current Limit
CTL_T Negative Current Limit
V REF Voltage
CTL_T = 1.5V
CTL_T = 0.75V
CTL_T = 1.5V
CTL_T = 0.75V
0.5mA Load
5.1
2.24
–8.5
–5.5
1.93
5.6
2.8
–7.7
–4.9
2
6.1
3.36
–6.9
–4.3
2.04
A
A
A
A
V
SS Pin Current
11
μA
SYNC Input Low Threshold
SYNC Input High Threshold
SYNC Bias Current
f SYNC = 400kHz
f SYNC = 400kHz
SYNC = 0V
1.2
0.6
1
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 LTM8052E/LTM8052AE 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 LTM8052I/LTM8052AI is guaranteed
to meet specifications over the full –40°C to 125°C internal operating
temperature range. The LTM8052MP/LTM8052AMP 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.
3
For more information www.linear.com/LTM8052
8052fc
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