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LTC3537 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC3537
Description  2.2 MHz, 600mA Synchronous Step-Up DC/DC Converter and 100mA LDO
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3537 Datasheet(HTML) 4 Page - Linear Technology

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LTC3537
4
3537fd
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.
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
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PSRR
Ripple Rejection
f = 2.2MHz at ILOAD = 100mA (Note 3)
24
dB
ISHORT
Short Circuit Current Limit
VOLDO = 0V
l
110
150
mA
VENLDOH
ENLDO Input High Voltage
0.8
V
VENLDOL
ENLDO Input Low Voltage
0.3
V
IENLDO
ENLDO Input Current
VENLDO = 5.5V
1.5
μA
VPGDLLOW
PGDL Voltage Low
IPGDL = 5mA
200
mV
IPGDLLEAK
PGDL Leakage Current
VPGDL = 5.5V
0.01
1
μA
PGDL Trip Point
VFBL Rising
96
% VOLDO
PGDL Hysteresis
3%
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.


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