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LTM8025 Datasheet(PDF) 3 Page - Linear Technology

Part No. LTM8025
Description  36V, 3A Step-Down Module Regulator
Download  22 Pages
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTM8025 Datasheet(HTML) 3 Page - Linear Technology

 
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LTM8025
3
8025fc
For more information www.linear.com/LTM8025
elecTrical characTerisTics
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 LTM8025E is guaranteed to meet performance specifications
from 0°C to 125°C internal. Specifications over the full –40°C to
125°C internal operating temperature range are assured by design,
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Input Voltage
l
3.6
V
Output DC Voltage
0 < IOUT ≤ 3A; RADJ Open
0 < IOUT ≤ 3A; RADJ = 16.9k; VIN = 32V
0.8
24
V
V
Output DC Current
VOUT = 3.3V
0
3
A
Quiescent Current into VIN
RUN/SS = 0V
Not Switching
BIAS = 0V, Not Switching
0.01
25
85
1
60
150
µA
µA
µA
Quiescent Current into BIAS
RUN/SS = 0V
Not Switching
BIAS = 0V, Not Switching
0.01
65
0
0.5
120
5
µA
µA
µA
Line Regulation
5.5V < VIN < 36V, IOUT = 1A
0.3
%
Load Regulation
0A < IOUT < 3A
0.4
%
Output Voltage Ripple (RMS)
0A < IOUT < 3A
10
mV
Switching Frequency
RT = 45.3k
775
kHz
Voltage (at ADJ Pin)
l
775
770
790
805
810
mV
mV
Current Out of ADJ Pin
ADJ = 1V, VOUT = 0V
2
µA
Minimum BIAS Voltage for Proper Operation
2
2.8
V
RUN/SS Pin Current
RUN/SS = 2.5V
5
10
µA
RUN Input High Voltage
2.5
V
RUN Input Low Voltage
0.2
V
PGOOD Threshold (at ADJ Pin)
VOUT Rising
710
mV
PGOOD Leakage Current
PGOOD = 30V
0.1
1
µA
PGOOD Sink Current
PGOOD = 0.4V
200
700
µA
SYNC Input Low Threshold
fSYNC = 550kHz
0.5
V
SYNC Input High Threshold
fSYNC = 550kHz
0.7
V
SYNC Bias Current
SYNC = 0V
0.1
µA
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 12V, RUN/SS = 12V, BIAS = 3V unless otherwise noted. (Note 2)
characterization and correlation with statistical process controls. The
LTM8025I is guaranteed to meet specifications over the full –40°C
to 125°C internal operating temperature range. The LTM8025MP 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.


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