LTC3537EUD データシートの表示（PDF） - Linear Technology
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LTC3537EUD Datasheet PDF : 22 Pages
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LTC3537
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 2) VINL = 3.3V, VOLDO = 3V, unless otherwise noted.
SYMBOL
PSRR
ISHORT
VENLDOH
VENLDOL
IENLDO
VPGDLLOW
IPGDLLEAK
PARAMETER
Ripple Rejection
Short Circuit Current Limit
ENLDO Input High Voltage
ENLDO Input Low Voltage
ENLDO Input Current
PGDL Voltage Low
PGDL Leakage Current
PGDL Trip Point
PGDL Hysteresis
CONDITIONS
f = 2.2MHz at ILOAD = 100mA (Note 3)
VOLDO = 0V
VENLDO = 5.5V
IPGDL = 5mA
VPGDL = 5.5V
VFBL Rising
MIN TYP MAX UNITS
24
dB
l 110
150
mA
0.8
V
0.3
V
1.5
μA
200
mV
0.01
1
μA
96
% VOLDO
3
%
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 LTC3537 is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Specification is guaranteed by design and not 100% tested in
production.
Note 4: Current measurements are made when the output is not switching.
Note 5: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may result in device degradation or failure.
Note 6: Failure to solder the exposed backside of the package to the PC
board ground plane will result in a thermal resistance much higher than
68°C/W.
3537fd
4
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