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參數(shù)資料
| 型號： | LTC3534EDHC |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING REGULATOR, 1150 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | 5 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-229WJED-1, DFN-16 |
| 文件頁數(shù)： | 14/20頁 |
| 文件大小： | 218K |
| 代理商： | LTC3534EDHC |
LTC3534
3
3534f
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 LTC3534E is guaranteed to meet performance specications
from 0°C to 85°C. Specications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Start-Up Voltage
l
2.2
2.4
V
Input Operating Range
l
2.4
7
V
Output Voltage Adjust Range
l
1.8
7
V
Feedback Voltage
(Note 4)
l
0.975
1
1.015
V
Feedback Input Current
VFB = Measured Feedback Voltage (Note 4)
1
50
nA
VIN Quiescent Current – Burst Mode
Operation
VFB = 1.2V, VPWM = 0V (Note 5)
25
50
μA
VIN Quiescent Current – Shutdown
VRUN/SS = 0V, Not Including Switch Leakage, VOUT = 0V
0.1
1
μA
VIN Quiescent Current – Active
VFB = 1.2V, VPWM = 5V (Note 5)
420
700
μA
Input Current Limit
VPWM = 5V
l
1
1.8
A
Reverse Current Limit
VPWM = 5V
500
mA
Burst Current Limit
VPWM = 0V
400
mA
NMOS Switches Leakage
Switches B and C
0.1
7
μA
PMOS Switches Leakage
Switches A and D
0.1
10
μA
PMOS Switches On-Resistance
Switches A and D
260
mΩ
NMOS B Switch On-Resistance
Switch B
275
mΩ
NMOS C Switch On-Resistance
Switch C
215
mΩ
Maximum Duty Cycle
Boost (% Switch C On)
Buck (% Switch A On)
l
75
100
85
%
Minimum Duty Cycle
l
0%
Frequency
l
0.80
1
1.15
MHz
Error Amp AVOL
(Note 4)
74
dB
Error Amp Source Current
–15
μA
Error Amp Sink Current
225
μA
RUN/SS Threshold
l
0.4
1
1.4
V
RUN/SS Input Current – Shutdown
VRUN/SS = 400mV; IC is Shut Down
0.02
1
μA
RUN/SS Input Current – Active
VRUN/SS = 5V; IC is Enabled
0.28
1
μA
PWM Threshold
Measured at PWM Pin; Voltage at which Burst Mode Operation is
Disabled (PWMing Enabled)
0.4
1
1.4
V
PWM Input Current
VPWM = 5V
1.25
2.5
μA
The
l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = VOUT = 5V, unless otherwise noted.
Note 3: 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 specied maximum operating junction
temperature may result in device degradation or failure.
Note 4: The IC is tested in a feedback loop to make this measurement.
Note 5: Current Measurements are performed when the outputs are not
switching.
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