LTC1044AC 데이터 시트보기 (PDF) - Linear Technology
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LTC1044AC Datasheet PDF : 14 Pages
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LTC1044A
Electrical Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. V+ = 5V, COSC = 0pF, unless otherwise noted.
LTC1044AC
LTC1044AI
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX
IS
Supply Current
RL = ∞, Pins 1 and 7, No Connection
RV+L
=
=
∞,
3V
Pins
1
and
7,
No
Connection,
60 200
15
60 200
15
Minimum Supply Voltage RL = 10k
l 1.5
1.5
Maximum Supply Voltage
ROUT Output Resistance
fOSC
Oscillator Frequency
RL = 10k
IL = 20mA, fOSC = 5kHz
V+ = 2V, IL = 3mA, fOSC = 1kHz
V+ = 5V, (Note 3)
V+ = 2V
l
12
12
100
100
l
120
130
l
310
325
l5
5
l1
1
PEFF
Power Efficiency
RL = 5k, fOSC = 5kHz
95 98
95 98
Voltage Conversion Efficiency RL = ∞
97 99.9
97 99.9
Oscillator Sink or Source
Current
VOSC = 0V or V+
Pin 1 (BOOST) = 0V
Pin 1 (BOOST) = V+
l
3
3
l
20
20
UNITS
μA
μA
V
V
Ω
Ω
Ω
kHz
kHz
%
%
µA
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: Connecting any input terminal to voltages greater than V+ or less
than ground may cause destructive latchup. It is recommended that no
inputs from sources operating from external supplies be applied prior to
power-up of the LTC1044A.
Note 3: fOSC is tested with COSC = 100pF to minimize the effects of test
fixture capacitance loading. The 0pF frequency is correlated to this 100pF
test point, and is intended to simulate the capacitance at pin 7 when the
device is plugged into a test socket and no external capacitor is used.
For more information www.linear.com/LTC1044A
1044afa
3
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