LTC3539-2 Linear Technology, LTC3539-2 Datasheet - Page 3

• Manufacturer Part Number: LTC3539-2
• Description: 1MHz/2MHz Synchronous Step-Up DC/DC Converters
• Manufacturer: Linear Technology

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ELECTRICAL CHARACTERISTICS
temperature range of –40°C to 85°C, otherwise specifi cations are at T
PARAMETER
Maximum Duty Cycle
Minimum Duty Cycle
Switching Frequency
MODE Input High Voltage
MODE Input Low Voltage
MODE Input Current
SHDN Input High Voltage
SHDN Input Low Voltage
SHDN Input Current
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 LTC3539E/LTC3539E-2 is guaranteed to meet performance
specifi cations from 0°C to 85°C. Specifi cations over –40°C to 85°C
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
Note 3: Specifi cation is guaranteed by design and not 100% tested in
production.
CONDITIONS
V
V
LTC3539
LTC3539-2
V
V
V
FB
FB
MODE
SHDN
SHDN
= 1.15V
= 1.3V
= 1.2V
= 3.3V
= 1.2V
The
l
denotes the specifi cations which apply over the specifi ed
A
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 specifi ed 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
60°C/W.
= 25°C. V
IN
= 1.2V, V
LTC3539/LTC3539-2
OUT
l
l
l
l
= 3.3V, unless otherwise noted.
MIN
0.88
0.88
0.7
1.8
87
TYP
0.3
0.3
90
1
2
1
MAX
1.3
2.4
0.3
0.3
0
1
1
2
UNITS
3
MHz
MHz
3539f
μA
μA
μA
%
%
V
V
V
V